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For cryin' out loud, I'm tired of watching my battery drain while plugged into the supplied USB charger. It's ridiculous. I've never owned a portable device that discharged under normal use when plugged into its supplied AC adapter. If I want to spend 15 hours a day playing Angry Birds, it should be possible when I have a power source which is virtually unlimited. Twice, I've started the day with a full battery, had the device plugged in to the supplied 2 amp charger all day, and had <10% left on the battery when I went to bed. (No, I don't actually play Angry Birds for more than a few minutes at a time but I do use the device a lot.)
jtown said:
For cryin' out loud, I'm tired of watching my battery drain while plugged into the supplied USB charger. It's ridiculous. I've never owned a portable device that discharged under normal use when plugged into its supplied AC adapter. If I want to spend 15 hours a day playing Angry Birds, it should be possible when I have a power source which is virtually unlimited. Twice, I've started the day with a full battery, had the device plugged in to the supplied 2 amp charger all day, and had <10% left on the battery when I went to bed. (No, I don't actually play Angry Birds for more than a few minutes at a time but I do use the device a lot.)
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I don't have that problem. You do know that your device will wait till it drops some percentage before it starts charging again. It won't keep it at 100% the whole time... Is meant to conserve your battery life
smartadmin said:
I don't have that problem. You do know that your device will wait till it drops some percentage before it starts charging again. It won't keep it at 100% the whole time... Is meant to conserve your battery life
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Click to collapse
Let's pretend I've got just a little experience with portable devices. The standard is to float between 95 and 100% charge and just call it "charged" once it's bounced off 100% the first time.
Here's a test you can do that requires no time on your part. Set it up to play a long movie while it's plugged in. Look at the charge level after it's been going for a couple of hours. And you don't have to take my word for it. I'm hardly the only person complaining that the supplied charger is not capable of keeping up with the device's power requirements.
If you are seeing power drop during normal use while plugged in I'd talk to Google. You may have a defective unit. Mine doesn't do that and I regularly see 20+ hour days with normal use unplugged and usually with some video, browsing, games etc.
Take note off when you see the drop, how much you lose over a given amount off time and call Google and see if this is expected. I'm sure they will help. They have been very responsive when I've called.
Sent from my Nexus 10 using Tapatalk 2
groaner said:
If you are seeing power drop during normal use while plugged in I'd talk to Google. You may have a defective unit. Mine doesn't do that and I regularly see 20+ hour days with normal use unplugged and usually with some video, browsing, games etc.
Take note off when you see the drop, how much you lose over a given amount off time and call Google and see if this is expected. I'm sure they will help. They have been very responsive when I've called.
Sent from my Nexus 10 using Tapatalk 2
Click to expand...
Click to collapse
I will watch like 1 hour of Streaming Vid's and loose like 4-5% while plugged in.
100% brightness causes my device to use more power then what's being supplied from the wall charger, and a few other people have confirmed similar incidents as well.
Max your brightness, and then go play a 3D game, while being plugged into the wall charger, and watch the percentage drop still
My tablet lasts a few days at least before needing a charge. I plug it in over night and it charges to full. I couldn't be more happier with it considering it is not self-sufficient.
Mine drops a few % per hour in use with the stock charger connected. Brightness at 50%, WiFi on, BT off. I'm not going to whine about it, but its the only thing that's not great with this tab.
Sent from my Nexus 10 using XDA Premium HD app
Why do everyone seems to think that the POGO-charger would be able to charge the Nexus faster?
I've read on an Ipad forum that about 10-15 hours charging are normal (the Ipad 4 has a 42,5Wh battery), and their chargers give as much Watt as our Nexus chargers.
One thing is clear, you can't increase the voltage. That would kill your Nexus right away.
My Samsung charger I recieved with my Nexus 10 says 5V out and 2A.
5*2= 10W.
Isn't that the same rates that other tabs have, even if they got special chargers?
So, the only thing the POGO-charger could raise, is the amount of current.
Even if you had a 10A charger, if the Nexus cant use more than 2A, it wouldn't get anymore amps than 2.
If the kernel on the Nexus doesn't support any higher charger rates, then you cant change anything.
There is a reason why the manufacturers have set 5V as standard - to make it work together with USB.
Battery Specs: Samsung Li-Ion 3.75V 22.75Wh 9000 mah.
So, it's easy. If you had a 1W charger, it would take 22,75 hours to get a fully charged battery.
In theory, it should take 2,75 hours to fully charge the Nexus 10 battery, but we don't turn it off, we use it while charging, it uses background sync and I dont know what the efficiency rating is on the charger or the Nexus.
You know you could feel some heat on the back of the Nexus 10 after some usage?
That's some of the battery's energy that spoils into heat, meaning that there are power losses.
It's normal though, we don't have anything yet on earth that could convert 100% energy from one form to another.
You could compare it to a car, you need a cooler-system to remove the excessive heat from the engine.
Even if your Nexus is far more efficient.
Olaeli said:
Why do everyone seems to think that the POGO-charger would be able to charge the Nexus faster?
I've read on an Ipad forum that about 10-15 hours charging are normal (the Ipad 4 has a 42,5Wh battery), and their chargers give as much Watt as our Nexus chargers.
One thing is clear, you can't increase the voltage. That would kill your Nexus right away.
My Samsung charger I recieved with my Nexus 10 says 5V out and 2A.
So, the only thing the POGO-charger could raise, is the amount of current.
Even if you had a 10A charger, if the Nexus cant use more than 2A, it wouldn't get anymore amps than 2.
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Click to collapse
Please do not speculate about how much current can go through the pogo connection. Speculation is worthless and helps nobody. The fact that the included charger only puts out 2 amps probably has to do with limitations of the USB connection. But I'm speculating. See how pointless that is? The fact that one connection is limited to 2 amps doesn't mean all power connections are limited to 2 amps.
And where did I say anything about increasing the voltage? I'm not an idiot and didn't suggest such a stupid thing.
As for temperature, that can easily be monitored during charging and the current can be reduced if it gets too high. You are aware that there is a temperature sensor for the battery, right?
None of which has a darn thing to do with my opinion that it's unacceptable to produce a device that uses more power than it can get from its AC adapter. If there really is no way to run the Nexus 10 at full tilt without supplementing the AC adapter with battery power, Samsung should have addressed that problem before going into production with this unit. This isn't a $150 entry level device. It's the Android flagship.
Olaeli said:
Why do everyone seems to think that the POGO-charger would be able to charge the Nexus faster?
Click to expand...
Click to collapse
A person that supposedly has said charger mentioned that it seemed to charge faster.
jtown said:
Please do not speculate about how much current can go through the pogo connection. Speculation is worthless and helps nobody. The fact that the included charger only puts out 2 amps probably has to do with limitations of the USB connection. But I'm speculating. See how pointless that is? The fact that one connection is limited to 2 amps doesn't mean all power connections are limited to 2 amps.
And where did I say anything about increasing the voltage? I'm not an idiot and didn't suggest such a stupid thing.
As for temperature, that can easily be monitored during charging and the current can be reduced if it gets too high. You are aware that there is a temperature sensor for the battery, right?
None of which has a darn thing to do with my opinion that it's unacceptable to produce a device that uses more power than it can get from its AC adapter. If there really is no way to run the Nexus 10 at full tilt without supplementing the AC adapter with battery power, Samsung should have addressed that problem before going into production with this unit. This isn't a $150 entry level device. It's the Android flagship.
Click to expand...
Click to collapse
Please, you started speculating about a high-current POGO-charger that doesn't exist.
Sure, you didn't mention the voltage, but I ve seen comments about it before, so I just wanted to make it clear.
And I didn't say the temperature was a problem either, just that it lowers the efficiency of the charger and the device.
Samsung maybe didn't know there was a charging problem.
We've seen examples before that manufacturers don't test their products enough.
(ASUS Transformer with encased aluminum body, anyone?)
And I know, this is supposed to be a flagship, but what everyone forgets is that it's much cheaper than other brands.
I was looking forward to buy a ASUS TF700 with keyboard at almost twice the price as the Nexus 10 before I read about the Nexus.
Even if it doesn't justify the charging problem, you could try to adapt to the circumstances until there's a solution.
When I'm low on battery, I let the device charge and do something else for a change.
Sent from my Nexus 10 using xda app-developers app
Edit: If you look at the pictures of the POGO-charger that's across the internet, the charger is still only 5V, 2A.
Olaeli said:
Please, you started speculating about a high-current POGO-charger that doesn't exist.
Sure, you didn't mention the voltage, but I ve seen comments about it before, so I just wanted to make it clear.
And I didn't say the temperature was a problem either, just that it lowers the efficiency of the charger and the device.
Samsung maybe didn't know there was a charging problem.
We've seen examples before that manufacturers don't test their products enough.
(ASUS Transformer with encased aluminum body, anyone?)
And I know, this is supposed to be a flagship, but what everyone forgets is that it's much cheaper than other brands.
I was looking forward to buy a ASUS TF700 with keyboard at almost twice the price as the Nexus 10 before I read about the Nexus.
Even if it doesn't justify the charging problem, you could try to adapt to the circumstances until there's a solution.
When I'm low on battery, I let the device charge and do something else for a change.
Sent from my Nexus 10 using xda app-developers app
Edit: If you look at the pictures of the POGO-charger that's across the internet, the charger is still only 5V, 2A.
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I have a nexus 10, nexus7, and a Tf700. I am noticing slightly faster charging on the n10 using the Tf700 ac adapter. The same is true when trying to charge my tf700. The stock samsung n10 ac adapter charges it slower than the asus transformer adapter. The same is true with my nexus 7 adapter. Ive used the n7 adapter to charge my tf700 and it was not as quick a charge. Meanwhile all 3 units are rated for 5v 2amp.
Olaeli said:
We've seen examples before that manufacturers don't test their products enough.
(ASUS Transformer with encased aluminum body, anyone?)
Click to expand...
Click to collapse
I wonder what all they did test if they somehow managed to miss that...
joe1l said:
I have a nexus 10, nexus7, and a Tf700. I am noticing slightly faster charging on the n10 using the Tf700 ac adapter. The same is true when trying to charge my tf700. The stock samsung n10 ac adapter charges it slower than the asus transformer adapter. The same is true with my nexus 7 adapter. Ive used the n7 adapter to charge my tf700 and it was not as quick a charge. Meanwhile all 3 units are rated for 5v 2amp.
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Click to collapse
Could be possible the N10 charger isn't actually putting out 2A? Might need a multimeter or something to verify for sure though...
I am currently out of town so keep in mind I didn't have a chance to dig too deep but I've given the kernel a quick look through.
There is no such thing as the "high current pogo charger." The pogo pins accept 2A max and appears to be ~5V. The USB connector has the same limits.
I also took a look at the current at the battery to make sure the charger was being detected correctly. My 1A Samsung non-Nexus 10 charger seems to supply ~900ma to the battery which is as much as you should expect out of a 1A charger. My Nexus 10 charger supplies ~1600ma to the battery. This number seems slightly low but at least indicates the charger is detected correctly.
*If* the pogo charger does indeed charge faster, it will likely be because the pogo charger is able to supply some current that is asymptotically closer to 2A. In other words, it will not charger much faster than the USB charger.
On the other hand, the pogo charger will still be nice to have as it will allow simultaneous usage of USB OTG and charging.
Like I said before, I was unable to dig very deep because I'm out of town and browsing sysfs and kernel source on a tablet isn't the best experience. So, the info I found might not be 100% correct.
dalingrin said:
There is no such thing as the "high current pogo charger." The pogo pins accept 2A max and appears to be ~5V.
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Click to collapse
Please show some proof/references for this statement.
Valynor said:
Please show some proof/references for this statement.
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Click to collapse
There are many indicators throughout the kernel but for brevity I'll post what I think is the most concise.
https://github.com/CyanogenMod/andr...ng/arch/arm/mach-exynos/board-manta-battery.c
Line 773-776
Sets the current to 500ma if USB is detected on the pogo or 2A if AC is detected.
Well if you're reading 1600ma using the standard ac adapter that comes with the N10 and possibly closer to 2000ma (say 1900ma) using the pogo, then that is 1/5 faster charging. In terms of time that is quite a saving.
Of course, that is all speculation
USB current limits
I thought I'd post this as information I found while doing a spot of light reading
The current specification of a USB 2.0 port can be a maximum of 1.8A. Within Constraints.
"Battery Charging Specification 1.1: Released in March 2007.
A usb charging port places a termination resistance between D+ and D- to allow the maximum 1.8A", meaning that at this current, there can be no data transmission.
This appears to be increased for USB 3.0 standard.
"Battery Charging Specification 1.2: Released in December 2010.
Several changes and increasing limits including allowing 1.5A on charging ports for unconfigured devices, allowing High Speed communication while having a current up to 1.5A and allowing a maximum current of 5A."
citations come from documents here:
http://www.usb.org/developers/devclass_docs
As POGO pins do not have to follow any specification the only limit is the current the board & charging circuit can handle.
Look at the specs on the wall plug in unit. It's not a charger it's a 5V power supply and the charger is inside the N10. However the charger is setup determines the charging rate. Like mentioned above, it may not matter if you "could" use a 10A at 5V power supply.
Last nite, I played dead trigger until battery warning indicated 4%.
But I still keep playing and suddenly the screen went black.
I think the battery is totally dried out at that time. So I used the following
charger but failed to charge even after 10min. Here's the charger:
1. 3rd party 5V 3A charger,liteon brand.
2. old nokia 0.5A charger.
3. original samsung note2 charger.
all those 3 charger works normall on my n10 before last nite.
and suddenly i think maybe i can try out the original charger of n10.
And it works!
So i wonder if samsung or google put special charger on the adapter?
Before we know anything furthur.pls put ur n10 charger in safe place.
I think most tablet chargers output a voltage of 12v. That might of kicked your battery back to life.
xxKamikazexx said:
I think most tablet chargers output a voltage of 12v. That might of kicked your battery back to life.
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Click to collapse
I've confirm the voltage of my n10 adapter. Which printed "5V 2A".
It probably just needed a certain amount of minimum battery voltage to function and show charging. I doubt if the OEM power supply is special in any way. The charging circuit is really inside the N10.
wptski said:
It probably just needed a certain amount of minimum battery voltage to function and show charging. I doubt if the OEM power supply is special in any way. The charging circuit is really inside the N10.
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when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
matika said:
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
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Click to collapse
Yeah, that is very strange indeed. It does draw in the 1800mA range from the battery during boot up. Are you using the same micro-USB cord all the time? It was reported that there are big differences in charging rate with different brands of cords.
This was covered in another thread recently.
Basicially the Samsung chargers have 2 pins shorted together to get full charging power of around 1.5A with the n10. Using other chargers will get you around 500ma output.
My guess is if you left your tablet on the "other" chargers overnight it would come on just fine. They simply don't output enough juice to power the tablet when the battery is that low.
matika said:
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
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Click to collapse
Had you left the other chargers on long enough, the tablet would have booted fine. I've run into this. I have an old(er) Samsung Tab 2 10.1 charger I use with my N10 (now along with a Pogo cable) and my N10 charges rapidly. That, coupled with the two wires shorted out in Samy's setup for the larger amp's.....also, in my job, I work with other chargers all the time and use them all the time across multi platforms, to include my N10, and it charges fine (albeit much more slowly).
swany6mm said:
Had you left the other chargers on long enough, the tablet would have booted fine. I've run into this. I have an old(er) Samsung Tab 2 10.1 charger I use with my N10 (now along with a Pogo cable) and my N10 charges rapidly. That, coupled with the two wires shorted out in Samy's setup for the larger amp's.....also, in my job, I work with other chargers all the time and use them all the time across multi platforms, to include my N10, and it charges fine (albeit much more slowly).
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Click to collapse
My charger(PS) for my Dell Streak 7 works just fine with the N10. This all makes sense except for the fact that the poster stated using a: 3rd party 5V 3A charger,liteon brand which didn't work.
wptski said:
My charger(PS) for my Dell Streak 7 works just fine with the N10. This all makes sense except for the fact that the poster stated using a: 3rd party 5V 3A charger,liteon brand which didn't work.
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Click to collapse
Should still work fine. Voltage is the same and the device will only draw as much amperage as needed. May have something to do with the circuitry in the charger? It may have been bad. As long as you don't supply more volts you are OK. More amps is also OK. Not enough amps will lead to burning up the charger unless the device is smart enough to realize its on a low amp charger (like the n10) and kick down so as not to over draw (ie - over drawing from the USB port which is a .5amp (500mAmp) or 1amp (1000mAmp)...someone correct me on the number here please)
The whole reason manufacturers tell you not to use someone else's charger is so you don't plug in, say, a 12 volt charger into a 5 volt item. That would pop something. That or some cheap charger poorly built could allow "dirty" power through causing problems. Both issues voiding warranties
Not sure if it's been mentioned, but depending on the usage of the tablet, you might not be able to charge it quicker than the power usage. For me, if I'm playing a demanding game at 1.7Ghz and max brightness, neither USB or Pogo can charge the tablet, and battery still drops (slower, but still drops).
swany6mm said:
Should still work fine. Voltage is the same and the device will only draw as much amperage as needed. May have something to do with the circuitry in the charger? It may have been bad. As long as you don't supply more volts you are OK. More amps is also OK. Not enough amps will lead to burning up the charger unless the device is smart enough to realize its on a low amp charger (like the n10) and kick down so as not to over draw (ie - over drawing from the USB port which is a .5amp (500mAmp) or 1amp (1000mAmp)...someone correct me on the number here please)
The whole reason manufacturers tell you not to use someone else's charger is so you don't plug in, say, a 12 volt charger into a 5 volt item. That would pop something. That or some cheap charger poorly built could allow "dirty" power through causing problems. Both issues voiding warranties
Click to expand...
Click to collapse
Never seen anything burn up because of low amperage., power or watts generate heat and power(watts)=voltage x current.
Did you ever see a PS(charger is inside the N10) with a USB port that supplies anything but 5V? I haven't.
Current (amps) does the charging.
No USB charger will provide anything more than 5.1 volts. If the charging block has a USB plug look at the rating. Amperage for smaller devices may be 1a or even less. Newer big smartphones have bigger batteries and need more current to charge. My old Thunderbolt charger is 1A, the charger Motorola provides for my Maxx HD is 1.5A, the Samsung charger for my Galaxy Tab 2 7.0 is a 2 amp charger, so is the charger for the iPad that some frickin' jerk ripped off from my house. The Xoom escaped that problem by having a separate charge plug, not using the USB system, it 12 volts at 1.5 amps. See the pattern? A tablet of any kind has an even bigger battery and needs even more current to charge. The reason the N10 may lose charge even when plugged in is that the charger can't deliver the current needed to run the device and charge the battery simultaneously.
As I see it, Samsung and Google need to supply a slightly higher amperage power block to compensate for the use/charge balance problem. Our solution would be to turn it off and charge the device every night or even leave it plugged in when not in use.
Another thing is the surface area for current transfer. The USB points are tiny, the POGO Pins, dedicated to charging would be able to handle more current because they have more surface area.
Any one who knows better may correct me, I just ordered an N10 today from Google so my information here is what I have read here and what I know from years in the electronics field..
ongre12 said:
No USB charger will provide anything more than 5.1 volts. If the charging block has a USB plug look at the rating. Amperage for smaller devices may be 1a or even less. Newer big smartphones have bigger batteries and need more current to charge. My old Thunderbolt charger is 1A, the charger Motorola provides for my Maxx HD is 1.5A, the Samsung charger for my Galaxy Tab 2 7.0 is a 2 amp charger, so is the charger for the iPad that some frickin' jerk ripped off from my house. The Xoom escaped that problem by having a separate charge plug, not using the USB system, it 12 volts at 1.5 amps. See the pattern? A tablet of any kind has an even bigger battery and needs even more current to charge. The reason the N10 may lose charge even when plugged in is that the charger can't deliver the current needed to run the device and charge the battery simultaneously.
As I see it, Samsung and Google need to supply a slightly higher amperage power block to compensate for the use/charge balance problem. Our solution would be to turn it off and charge the device every night or even leave it plugged in when not in use.
Another thing is the surface area for current transfer. The USB points are tiny, the POGO Pins, dedicated to charging would be able to handle more current because they have more surface area.
Any one who knows better may correct me, I just ordered an N10 today from Google so my information here is what I have read here and what I know from years in the electronics field..
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Click to collapse
You don't need more current to charge a bigger battery, it's all about how long it will take to charge to full.
Some have stated that they've seen a 3A battery drain with certain games. The 9Ah battery would last approx. 3 hours which exceeds the max rate of the charging circuit and the PS. Even on a fully charged battery at that rate doesn't last that long.
AFAIK for any tablet to be able to draw 2A from any 5V charger (that can supply the needed amperage) the data pins (middle two pins from the use cable) have to be at 2.5V. Otherwise even if the charger is with correct specifications 5V/2A the tablet might not charge at all, or charge at a lower rate.
Sent from my Nexus 10 using Tapatalk HD
I forget the actual brand/model of the actual charging chip but if you poke around in the N10 files you can find it but it's specs are list as 2.5A max but N10's code limits it to 2.1A. This isn't the PS wall wart commonly called the "charger".
The recommended charging current for any lithium ion or lithium polymer is 0.7C. What that actually means is a current 0.7 x max capacity in mAh. For most phones e.g. my Galaxy Note 2 with a capacity of 3100 mAh this means a current at about 1.7A.
The battery Nexus 10, on the other hand, could very well be charged at a whooping 6.3A current.
In USB Battery Charging Specification 1.2 the maximum current a USB port can supply for charging purposes can be as high as 5A.
With the Perseus kernel for Note 2 you can actually specify the max limit for how much current the phone will draw from any charger.
So in theory.. it should be possible to charge the Nexus 10 with a 5V 5-6,3A charger.. and that would probably be very quick!
For the record: I havn't seen many (any?) chargers with more that 2.3A
MartiniGM said:
The recommended charging current for any lithium ion or lithium polymer is 0.7C. What that actually means is a current 0.7 x max capacity in mAh. For most phones e.g. my Galaxy Note 2 with a capacity of 3100 mAh this means a current at about 1.7A.
The battery Nexus 10, on the other hand, could very well be charged at a whooping 6.3A current.
In USB Battery Charging Specification 1.2 the maximum current a USB port can supply for charging purposes can be as high as 5A.
With the Perseus kernel for Note 2 you can actually specify the max limit for how much current the phone will draw from any charger.
So in theory.. it should be possible to charge the Nexus 10 with a 5V 5-6,3A charger.. and that would probably be very quick!
For the record: I havn't seen many (any?) chargers with more that 2.3A
Click to expand...
Click to collapse
Sure the charging rate is way under what it should be but as they use larger and larger capacity cells the only solution is a removable cell to charge by other means.
Hi,
Does anyone know why it is such a god damn crapshoot for charging speeds on the galaxy note 2 (or any samsung device for that matter).'
You buy a charger rated for 2amps and you never know what it will give you.
You buy a USB micro cable and get anywhere between 0.4amps and 1.6amps.
What is the criteria that the phone is using to determine how many amps to pull from the charger? How does it even know what gauge of wire it is? Is there some sort of resistance check?
I have a Galaxy Note 10.1 and that is even more particular than the GN2. With most aftermarket chargers, it absolutely refuses to charge. I've had so much trouble finding a charger for it I've just stopped using the tablet since I only have one working charger for it.
It really sucks spending anywhere between $2-$30 dollars on a charger and not knowing if it will work. My success rate has been less than 10%.
I try to do forum and google searches, but all I seem to find are comments like "I bought this charger. Seems to work." With no detailed information on what performance they are getting out of it.
This is really turning me off samsung products. I don't have this problem with my HTC or LG android devices.
I don't know why you have problems, I have 2 samsung devices (phones) and I chare them with their original chargers, charger from Nexus 7 and my old charger from Desire HD and all work just fine... ofcourse, the original one is the fastest, since it is 2A, HTC one is 750mA and Ativ S one is 500mA, N7 one is 1A....
dalanik said:
I don't know why you have problems,
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Click to collapse
You kind of answer this for yourself, as follows:
dalanik said:
I have 2 samsung devices (phones) and I chare them with their original chargers, charger from Nexus 7 and my old charger from Desire HD and all work just fine... ofcourse, the original one is the fastest, since it is 2A, HTC one is 750mA and Ativ S one is 500mA, N7 one is 1A....
Click to expand...
Click to collapse
Your stock charger is 2A. (about 1.5-2 hours to charge)
Your HTC charger is 750mA (about 4-5 hours to charge)
Your ATV charger is 500mA (no better than a computer port. 6-8 hours to charge)
This was my point. This IS my problem. Obviously the stock charger works at 2A, but with any other charger it is anyones guess as to what speeds you're going to get out of it. Even when they are specified to work at 2A, you are likely not going to get 2A out of it. The phone is so bloody fickle.
If there was some benchmark or specific set of criteria I could use when I purchase a new charger to know for certain if it will charge at 2A, then that would mitigate some of the problem at least. But right now, there is none as far as I can tell. When I purchase a charger, I literally have no idea if it will run at 2A with this phone.
I'm glad that you're not bothered by the slow charging speeds and are happy with <1A. I'm sure this works well for most people. It doesn't for me. I push my phone to the max (as I have every right to) and need a charger that can keep up.
Well, charging slowly is different to what you say i.e. "refusing to charge at all" etc. And of course I don't use Ativ's charger to charge N2 often, it would take ages But I use HTC's charger that is 750mA and it charges within 2 hours which is OK.
Anyways, the only solution for you is to buy BRANDED charger from a company you can trust not some cheap chinese, t should work just fine whether it gives 2A or 1.9A is really no big difference.
dalanik said:
Well, charging slowly is different to what you say i.e. "refusing to charge at all" etc. And of course I don't use Ativ's charger to charge N2 often, it would take ages But I use HTC's charger that is 750mA and it charges within 2 hours which is OK.
Anyways, the only solution for you is to buy BRANDED charger from a company you can trust not some cheap chinese, t should work just fine whether it gives 2A or 1.9A is really no big difference.
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Well, there are chargers that refuse to work. Especially with the Galaxy Note 10.1.
Cheap ebay chargers are a crapshoot, that much goes without saying. But there are many brand-name chargers that don't work at full speed, despite being rated for 2A.
Its not so much a charger thing as a samsung thing. While I'm not able to find specific criteria as to how/why the phone decides to charge at the speed it does (which is really the only question I had with this thread), I can tell you that there are many brand name products (monoprice, anker, ngear, etc) that are rated for 2A, but will not run at 2A with the samsung. They will usually run at 2A with other products though.
The more research I do, the more I highly suspect that this is a case of Samsung propriety. It looks like that they are deliberately throttling aftermarket chargers to force you to buy their overpriced samsung chargers. As I understand it, it has something to do with creating a voltage divider between two of the contacts, but every diagram I find shows a different wiring scheme. This would indicate that no one really knows for sure.
The one and ONLY question I have with this thread is to find out what criteria the N7100 uses to determine how much amperage to draw. I remain confident that no one will answer this question because it seems no one knows.
For the Note 2: there is a way to get a simple measurement of how much current is being pulled. Refer to this thread for the apk and more info.
alpha-niner64 said:
For the Note 2: there is a way to get a simple measurement of how much current is being pulled. Refer to this thread for the apk and more info.
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Thanks for posting this. I suppose I should have mentioned that I have this app already and it is incredibly useful. I also have this, which with only a few bizarre exceptions, reports the same as the app.
The more people who are aware of this app, the better. People who think that their aftermarket charger "works fine for me" are probably unaware of how much those chargers are under-performing.
I don't have the education to explain your situation your situation well. But it boils down the electrical engineering the the physics of electricity.
There are quite a few variables that all effect the charging of devices. First thing is what does the device require for charge input, which is both amps and voltage. For whatever reason, quite a few tablets require 15 volts versus 5, which is what most mobile phones need. I have this same issue with my ASUS Transformer Infinity pad. It requires 2.0amps with 15 volts. I have a Galaxy Note II with needs 2.0amps with 5 volts. Unfortunately, when I use my phone charger with the tablet, it puts out enough to trigger a charger is plugged in (turns on tablet if it is off), but not enough to trigger there is actual charging. It does charge it, but it's a trickle charge; basically if it using while plugged in, it only slows the battery depletion rate.
As for the charge output, now you're getting into build quality, resistance of the components of the charger itself and the USB cable being used.
And then depending the device, the pins used on the USB cable can have an effect too. This mostly occurs with tablets or proprietary cables because the pins may tell the hardware what kind of charger is being used, which may have built in limits for charging.
Hopefully that helps some.
lovekeiiy said:
I don't have the education to explain your situation your situation well. But it boils down the electrical engineering the the physics of electricity.
There are quite a few variables that all effect the charging of devices. First thing is what does the device require for charge input, which is both amps and voltage. For whatever reason, quite a few tablets require 15 volts versus 5, which is what most mobile phones need. I have this same issue with my ASUS Transformer Infinity pad. It requires 2.0amps with 15 volts. I have a Galaxy Note II with needs 2.0amps with 5 volts. Unfortunately, when I use my phone charger with the tablet, it puts out enough to trigger a charger is plugged in (turns on tablet if it is off), but not enough to trigger there is actual charging. It does charge it, but it's a trickle charge; basically if it using while plugged in, it only slows the battery depletion rate.
As for the charge output, now you're getting into build quality, resistance of the components of the charger itself and the USB cable being used.
And then depending the device, the pins used on the USB cable can have an effect too. This mostly occurs with tablets or proprietary cables because the pins may tell the hardware what kind of charger is being used, which may have built in limits for charging.
Hopefully that helps some.
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That last part is correct. I actually know enough about electrical circuits to be pretty sure it is the phone deciding how much power to pull.
Ohms law states that the amperage of a circuit is the voltage of the circuit devided by the resistance (in ohms).
USB circuits are almost universally 5 volts. I remember reading somewhere that a phone has a potentiometer that protects it from circuits of incorrect voltage, up to a certain amount. This is probably why you can get away with sticking a 15V charger onto your phone and not blowing it up. You cannot depend on this however. Generally, you do not want to stick a charger into your device that is a different voltage rating than what the charger is rated for.
The charger decides the voltage, using an internal device that changes AC voltage (120VAC if youre american) to 5VDC (USB) or whatever your device needs. This device is called a rectifier.
As stated above, the charger decides the voltage. The battery determines the resistance*, therefore the amperage is the natural result of deviding the voltage by the resistance.
*Resistance is added to the circuit by the wire and the charger itself, but is usually inconsequential.
When a charger says that it is rated for a certain amperage, that means that it is the maximum amount of current that thr internal components can handle safely, without running the risk of earth-shattering kabooms (fire). If the circuit you have connected to your charger contains too little resistance, you will increase the amperage (ohms law, as stated above), and you may end up with a piece of charcoal where your charger used to be.
Thr fact that the samaung phones can change the amperage of a charging circuit so fickly must mean the phone is capable of changing its resistance. So the question becomes, what criteria is it using to determine when to change the resistancr and to what?
-PW
This may be the longest thing ive ever typed on my phone.
I'm not disagreeing since, as you said, the mobile device manufactures have build in some safe guards so we don't fry them from incorrect chargers or over charging.
But there are charges that are 15v. I've have one that came with my ASUS Transformer Infinity Pad. I think many Samsung tablets are in the same boat. I don't recall using that charger on any of my smartphones; if I have, it's only been once or twice, but good possibility I may never have. But as stated earlier, I have used my phone chargers on the tablet, but only does a trickle charge. That tablet has some wide input plug at the end of the USB cord. I'm thinking one of the pins must not get enough power to trigger the full charge. Yet, if I use my Anker external battery, set it to 15v, and a few adapters, it triggers the normal charge cycle.
Don't forget,phones such as Galaxy Note 2, Galaxy S3, use 11pin microUSB ports versus the standard 5. I have no idea what all pins do or trigger, My assumption, part of your answer why the charge output varies lies with how they're use the other pins. I know quite a few tablets have more than 5 pins since the USB port is some wide thing; the ASUS does because it carries data and power for the separate keyboard that can be attached to be a suedo-laptop that has USB ports, battery and full 104 key keyboard; I don't recall what other ports the attachment may have.
I still hold that part of charge difference is also the USB cord itself since difference materials have difference resistance. It may not be as significant as the charger itself, but I've seen significant differences in charging times or depletion rates (around 10% battery per hour) using MHL adapters purely on the USB cables.
Yes, typing out long replies on the phone's virtual keyboard blows monkey chunks. Thus, I use a blue tooth keyboard instead for those situations. I also have a blue tooth mouse, LOL.
Hi, would a regular charger be better to use vs the turbo charger for the longevity of the battery? Would a regular charger work ok with this phone?
Thanks
pred8er said:
Hi, would a regular charger be better to use vs the turbo charger for the longevity of the battery? Would a regular charger work ok with this phone?
Thanks
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With the turbo charger the device gets pretty warm
Hard to say but I don't think the turbo charger would damage the battery since it actually only ships with it. I would be surprised if it is a problem.
The way I understand it is that the turbo charger will step down as the battery reaches a fuller charge.
You can use the turbo charger on older devices without issue as the circuitry will account for this.
joderme said:
The way I understand it is that the turbo charger will step down as the battery reaches a fuller charge.
You can use the turbo charger on older devices without issue as the circuitry will account for this.
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This
I don't think Qualcomm would design a charger that would speed up the life of a battery because that would give them a bad reputation. I've used the quick charger since I got my Nexus until today because now I use my TYLT qi charger. I have noticed no negative effects of using it, and as stated the chip set is what dictates the charging speed. The chip will not let the battery get too hot assuming the chip is working so I would not worry.
Pilz said:
I don't think Qualcomm would design a charger that would speed up the life of a battery because that would give them a bad reputation. I've used the quick charger since I got my Nexus until today because now I use my TYLT qi charger. I have noticed no negative effects of using it, and as stated the chip set is what dictates the charging speed. The chip will not let the battery get too hot assuming the chip is working so I would not worry.
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Also forgot that if the battery gets too hot charging will stop as Pilz mentioned above. I have seen this before on my SGS5 with wireless charging as it can generate a good amount of heat. I would imagine the Nexus 6 is the same.
Okay. A quick lesson on chargers may be in order.
What you'd consider a regular 2A charger, is actually a "Quick Charge 1.0" charger, which charges at 5V @ 2A, for a total of 10W of power. A Quick Charge 2.0 charger, which Motorola calls a "Turbo Charger" charges at 5V, 9V, and/or 12V @ up to 3A each, for a total of 15, 27, of 36W respectively. Thus, in theory, a QC2.0 could charge up to (almost) 75% faster than a QC 1.0 charger. That's where that number that's being touted around comes from. The reality, so far though, is far different.
The Moto charger does actually charge at all three voltages (whereas most QC 2.0 charger only seem to charge at 5V and 9V), but it charges @ 1.6A in 5V mode (8W), 1.6A in 9V mode (14.4W), and 1.2A in 12V mode (14.4W). Thus, in the top two modes, it charges at just under the equivalent of a 3A "normal" (QC 1.0) charger, then drops down to about 80% of a standard 2A charger when the battery gets close to full.
With more power (watts) comes more heat, so yes, the battery does appear to get a lot warmer than with your normal charger. However, it's still well within the "normal" range that your battery was designed to handle. It may feel warm (or even hot) to you, but trust me, your battery is fine. In fact, there are safeguards in place to protect your battery. If you battery ever gets too hot, your phone will shut down and stop charging altogether. Some owners of a Tylt Vu can attest, since that particular charger has a reputation of wireless charging problems that caused the phones' safeguards to kick in. You should know though, that by the time that safeguard even kicks in, the phone will become MUCH too hot to touch. If you THINK that the phone is too hot, then it isn't. Believe me, the blisters on your fingers will let you know when a battery REALLY reaches a dangerous temperature. If you're able to hold onto the phone for more than a few seconds, then the battery is certainly not in any danger.
In a normal QC 2.0 charger, will that small amount of excess heat reduce the life of your battery? Technically, yes, but the same can be said about charging it with that 2A charger, vs. the 500mA USB port on your computer. It may reduce the life by a month or so, and still last more than double the 1 or 2 years that you're likely to own your phone. In short, don't worry about it. Your battery will likely still last MUCH longer than you'll need it.
Thnx for all the input!
jt3 said:
Okay. A quick lesson on chargers may be in order.
What you'd consider a regular 2A charger, is actually a "Quick Charge 1.0" charger, which charges at 5V @ 2A, for a total of 10W of power. A Quick Charge 2.0 charger, which Motorola calls a "Turbo Charger" charges at 5V, 9V, and/or 12V @ up to 3A each, for a total of 15, 27, of 36W respectively. Thus, in theory, a QC2.0 could charge up to (almost) 75% faster than a QC 1.0 charger. That's where that number that's being touted around comes from. The reality, so far though, is far different.
The Moto charger does actually charge at all three voltages (whereas most QC 2.0 charger only seem to charge at 5V and 9V), but it charges @ 1.6A in 5V mode (8W), 1.6A in 9V mode (14.4W), and 1.2A in 12V mode (14.4W). Thus, in the top two modes, it charges at just under the equivalent of a 3A "normal" (QC 1.0) charger, then drops down to about 80% of a standard 2A charger when the battery gets close to full.
With more power (watts) comes more heat, so yes, the battery does appear to get a lot warmer than with your normal charger. However, it's still well within the "normal" range that your battery was designed to handle. It may feel warm (or even hot) to you, but trust me, your battery is fine. In fact, there are safeguards in place to protect your battery. If you battery ever gets too hot, your phone will shut down and stop charging altogether. Some owners of a Tylt Vu can attest, since that particular charger has a reputation of wireless charging problems that caused the phones' safeguards to kick in. You should know though, that by the time that safeguard even kicks in, the phone will become MUCH too hot to touch. If you THINK that the phone is too hot, then it isn't. Believe me, the blisters on your fingers will let you know when a battery REALLY reaches a dangerous temperature. If you're able to hold onto the phone for more than a few seconds, then the battery is certainly not in any danger.
In a normal QC 2.0 charger, will that small amount of excess heat reduce the life of your battery? Technically, yes, but the same can be said about charging it with that 2A charger, vs. the 500mA USB port on your computer. It may reduce the life by a month or so, and still last more than double the 1 or 2 years that you're likely to own your phone. In short, don't worry about it. Your battery will likely still last MUCH longer than you'll need it.
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Very nice, thanks for this :good:
@jt3 Thanks for the explanation. I would think the voltage somehow plays a part in this, right? As you pointed out, if you look at straight watts, our Quickcharger is only putting out 44% more power versus a last gen phone. Also, since our charger supports both 9v and 12v at 14.4W, that further points to the idea that voltage plays a part here. I would assume it affects the efficiency of the charge? Otherwise why not just build this with 5v and 3 or 4 amps?
TheSopranos16 said:
@jt3 Thanks for the explanation. I would think the voltage somehow plays a part in this, right? As you pointed out, if you look at straight watts, our Quickcharger is only putting out 44% more power versus a last gen phone. Also, since our charger supports both 9v and 12v at 14.4W, that further points to the idea that voltage plays a part here. I would assume it affects the efficiency of the charge? Otherwise why not just build this with 5v and 3 or 4 amps?
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Click to collapse
Yes and no. The reason for changing the voltage instead of the current has to do with something called Joule Heating, and if you thought my last post was technical and complicated, you just dropped down the rabbit hole.
Think of it like a garden hose. Voltage would be the diameter of the hose. Current would be the rate in which water flowed through the hose. If, say, you wanted to fill your dog's water bowl, and for some insane reason, you want it to take exactly 30 seconds to do so. You could either get a larger diameter hose, and turn down the flow of water, or get a smaller diameter hose and turn up the flow. In the end, the dog's bowl gets filled in the same amount of time. (Electrical Engineers will likely gripe and say that the diameter of the hose is more accurately Resistance, rather than Voltage. Yeah, well... shut up! This is my story! Seriously, I'm being a bit inaccurate, but it makes it easier to picture this way.)
Same thing here. By cranking up the voltage (volts), they can turn down the current (amps) to achieve the same power (watts). In the case of the 12V vs. 9V on the Turbo Charger, it's the same exact power, which doesn't seem to make sense, and furthermore (as you said), why not just keep it 5V and raise current to 3A, since that's also (more or less) the same amount of power? Okay, remember that dog bowl? what happens when you really crank the water flow and point it toward that dog bowl? It splatters, and because of this, a measurable amount of water actually ends up outside of the bowl -- wasted. Same thing here. By cranking up the current, you lose more in the form of heat. By dialing that down (but keeping the power the same, by raising the voltage), you can reduce the heat generation at the same power level.
So... The "tl;dr" of it all is that a 12V charger, pushing (around) 15W of power generates less heat than that 5V, 3A charger would, even though the power is the same. The heat generated isn't huge at these small numbers, but we're talking REALLY confined spaces, with no fans or really any form of ventilation. A few degrees here and there can really make a difference.
I've just come over from a Samsung s8 plus that was unfortunately stolen without insurance and couldn't quite bring myself to fork out another insane price for another one. Purchased this OP5 carrier free @ my local o2 here in England (as i had a £150 voucher).
As a consequence, I have accumulated a large amount of both Quick Charge and Samsung adaptive fast chargers.
It seems that the OP5 charges very quickly on these which relieved me, I would say def on a similar level to QC 2.0 and the Samsung.
of course the Dash charge is just ridiculously quick.
i was reading that the OP5 does not support quick charge and only dash charge.
I beg to differ?
mikey_sk said:
I've just come over from a Samsung s8 plus that was unfortunately stolen without insurance and couldn't quite bring myself to fork out another insane price for another one. Purchased this OP5 carrier free @ my local o2 here in England (as i had a £150 voucher and .
As a consequence, I have accumulated a large amount of both Quick Charge and Samsung adaptive fast chargers.
It seems that the OP5 seems to charge very quickly on these which relieved me, I would say def on a similar level to QC 2.0 and the Samsung.
of course the Dash charge is just ridiculously quick.
i was reading that the OP5 does not support quick charge and only dash charge.
I beg to differ?
Click to expand...
Click to collapse
I'd be hesitant to use a QC adapter with the OP5. You're taking a risk of damaging the battery, or worse, the phone. There are most likely slight difference in the charging logic between the two adapters. I'd email OP support to get more info.
Sent from my ONEPLUS A5000 using Tapatalk
seems to work just fine, i doubt an adaptive fast charger will cause damage as it will act like a regular usb charger. will ask- cheers
Different charger wont damage anything people.
Lithium based charging system is more complicated as acid or Ni based battery, but simple.
1 rule for the power supply, it need to keep the power output the more stable as possible. So use high qality charger, samsumg are just fine. I'm using a HTC.
You can take any charger you want @ 5v. from 0A to 4A. You can use a 100A, but the phone will draw only waht it need, and the wire gauge will limit the power draw.
Let say the wire is too small, the voltage will drop, the chip will detect it and reduce the demand.
dash charging or fast charging are just brand name, the physics is the same. The power supply has a higher wattage, because the device can take it.
And the USB wire has a higher gauge compared at standard.
Use dash chager on a old phone, and you wont have any benefit if the phone draw only 700mA.
Or simply take a desk adjustable power supply, set it @ 5v4A, plug OP usb cable or any big gauge USB, and OP5 will show ''dash charging''.
Conclusion.
Depends of the voltage/amp/gauge, not the branding.
** BTW , even with cheap power bank, power supply or any supply, I really doubt it will damage anything. On my wife op3, we use any bank ( even the budwizer one), we plug it with iphone supply, 120voutlet with the usb option, dash, kindle supple, etc. annnnddd it still working juste fine. She has, ebay cable also.
Well all the stuff is in the charging brick on the dash charger. All the heat it's dealt with in the brick. That means the brick from Sammy doesn't and more heat then the phone could safely handle may do damage over time? IDK but the we all know heat kills electronics.
I use a quick charge (the one of got for my Nexus 6P) on my op5 but only at my couch so I pull it off the charger when full, don't let it sit on charge when 100%
You can let it sit on charge at 100%. Phone will disable charging anyway.
i actually think OP have stealthily allowed the qualcomm quick charge to work as it charges almost exactly as the s8 did on the sammy brick. i used a non quick charge old LG brick and that charged waaay more slowly.
honestly someone charge using a quick charge or sammy adaptive fast charge brick and tell me if im right or wrong ...
mikey_sk said:
i actually think OP have stealthily allowed the qualcomm quick charge to work as it charges almost exactly as the s8 did on the sammy brick. i used a non quick charge old LG brick and that charged waaay more slowly.
honestly someone charge using a quick charge or sammy adaptive fast charge brick and tell me if im right or wrong ...
Click to expand...
Click to collapse
I only have my dash and 1 Sam qc brick rest are cheap but with dash block it obviously says dash charging, with the qc it just says charging, and with the 3rd party bricks it says charging slowly. So hope that helps
Just download an app like ampere and monitor the current using the different chargers, then you will see if it's more efficient or not.
It might charge quickly using those other chargers but the heat won't be transferred to the charger like it is with Dash charge
Likely it is QC2.. only with dash charger it will go further and faster
any 3rd party cables that are dash charge compatible?, read somewhere its based on the thickness of the wire ...
oVeRdOsE. said:
Different charger wont damage anything people.
Lithium based charging system is more complicated as acid or Ni based battery, but simple.
1 rule for the power supply, it need to keep the power output the more stable as possible. So use high qality charger, samsumg are just fine. I'm using a HTC.
You can take any charger you want @ 5v. from 0A to 4A. You can use a 100A, but the phone will draw only waht it need, and the wire gauge will limit the power draw.
Let say the wire is too small, the voltage will drop, the chip will detect it and reduce the demand.
Click to expand...
Click to collapse
I agree a 100 percent with the above, you're right, people need to stop thinking high amperage kills a phone, just like all electronics: They only draw the amperage they need.
oVeRdOsE. said:
dash charging or fast charging are just brand name, the physics is the same. The power supply has a higher wattage, because the device can take it.
And the USB wire has a higher gauge compared at standard.
Use dash chager on a old phone, and you wont have any benefit if the phone draw only 700mA.
Or simply take a desk adjustable power supply, set it @ 5v4A, plug OP usb cable or any big gauge USB, and OP5 will show ''dash charging''.
Conclusion.
Depends of the voltage/amp/gauge, not the branding.
** BTW , even with cheap power bank, power supply or any supply, I really doubt it will damage anything. On my wife op3, we use any bank ( even the budwizer one), we plug it with iphone supply, 120voutlet with the usb option, dash, kindle supple, etc. annnnddd it still working juste fine. She has, ebay cable also.
Click to expand...
Click to collapse
But this is just plain wrong, dash charging has nothing to do with QC quick charge. It's as different as it can be!
QC quick charge:
The brick highers the voltage to more than 10v. This way, less amps go through the cable, the the wires can remain thin.
(P=U*I) --- e.g. --- Power = Volts * Amps --- example: 5v * 2a = 10w / 10v * 2a = 20w
This way, you can have a greater power while the amps remain the same, while using a normal, thin cable.
The voltage regulator/BCM in the phone takes the voltage down to safe levels for the battery. This creates alot of heat inside the phone, which is bad for the battery.
Dash charge:
Dash charging transfers the BCM to the charger, little to no heat is generated inside the phone!
The BCM controls the flow to the battery by altering the voltage.
U = I*R --- e.g. --- I = U/R --- e.g. --- Charging amperage = Voltage / Internal resistance of battery --- e.g. --- When the voltage is pushed up, the flow into the battery gets higher.
Remember, this is all done in the power brick, so the voltage of the electricity going through the cable is lower (3-6v I would say).
This translates to a higher current (amps), So the cables have to be thicker! That's why dash charging only works with official oneplus cables (and some OPPO cables, but those are all Micro usb).
In other words, there is no way dash charging works with other powerbricks!
I hope this clears up all the misunderstanding surrounding quick charging techniques.
Cheers!
nxss4 said:
I agree a 100 percent with the above, you're right, people need to stop thinking high amperage kills a phone, just like all electronics: They only draw the amperage they need.
But this is just plain wrong, dash charging has nothing to do with QC quick charge. It's as different as it can be!
QC quick charge:
The brick highers the voltage to more than 10v. This way, less amps go through the cable, the the wires can remain thin.
(P=U*I) --- e.g. --- Power = Volts * Amps --- example: 5v * 2a = 10w / 10v * 2a = 20w
This way, you can have a greater power while the amps remain the same, while using a normal, thin cable.
The voltage regulator/BCM in the phone takes the voltage down to safe levels for the battery. This creates alot of heat inside the phone, which is bad for the battery.
Dash charge:
Dash charging transfers the BCM to the charger, little to no heat is generated inside the phone!
The BCM controls the flow to the battery by altering the voltage.
U = I*R --- e.g. --- I = U/R --- e.g. --- Charging amperage = Voltage / Internal resistance of battery --- e.g. --- When the voltage is pushed up, the flow into the battery gets higher.
Remember, this is all done in the power brick, so the voltage of the electricity going through the cable is lower (3-6v I would say).
This translates to a higher current (amps), So the cables have to be thicker! That's why dash charging only works with official oneplus cables (and some OPPO cables, but those are all Micro usb).
In other words, there is no way dash charging works with other powerbricks!
I hope this clears up all the misunderstanding surrounding quick charging techniques.
Cheers!
Click to expand...
Click to collapse
yes i agree but it seems like the OP5 allows qualcomm quick charge (or some form of it) to work as ive checked and a quick charge brick charges much quicker than a regular non quick charge brick.
this seems like great news as the phone has a versatility between both techs. makes commercial sense for OP to allow QC (albeit at the same level as a S8 from my experience) to work as their dash tech limits brick and cable usage.
mikey_sk said:
yes i agree but it seems like the OP5 allows qualcomm quick charge (or some form of it) to work as ive checked and a quick charge brick charges much quicker than a regular non quick charge brick.
this seems like great news as the phone has a versatility between both techs. makes commercial sense for OP to allow QC (albeit at the same level as a S8 from my experience) to work as their dash tech limits brick and cable usage.
Click to expand...
Click to collapse
Yes, you are right, it could be possible (although unlikely) that oneplus has adopted 2 fast charging protocols in the oneplus 5.
I was just saying it can't dash charge using a samsung adaptor/cable.
I you want, I can try to hijack some cable to read out the voltage when the oneplus5 is being charged with a samsung adaptor.
That would be very interesting to see !!
Can't seem to get it to charge as fast as the OP5 charger, will post ampere reading here in a bit.
prozo said:
Can't seem to get it to charge as fast as the OP5 charger, will post ampere reading here in a bit.
Click to expand...
Click to collapse
That's impossible, read my post above to see why
I checked the voltage while charging the OP5 with a QC charger It stays at about 5 volts, so there seems to be no QC capability in the OP5.
There is no QC functionality for the OP5. Regular charging, just draws power like a phone with neither QC or Dash. You can still get a relative fast charge from a higher output brick. (output 5v 1.2a-2a) Higher the amps, the faster the charge. Of course this is dependent upon cable quality and charge logic.