So I was gearing up to charge my N7 for the first time so I decide to leave it plugged in over night.
I wake up and I find that the screen is on and "Charging 41%" is flashing on the screen.
Anyone experience this yet?
Matt1408 said:
So I was gearing up to charge my N7 for the first time so I decide to leave it plugged in over night.
I wake up and I find that the screen is on and "Charging 41%" is flashing on the screen.
Anyone experience this yet?
Click to expand...
Click to collapse
Are you able to turn it on and run the device?
Play with it a while and see if things improve or get worse.
Were you using the OEM charger AND cable? The $1 chinese cable I used with the OEM charger had mine charging to 100% in 16 hours +
Make sure you are using the OEM Charger & Cable.
Also make sure you use the mains and not a USB port, I tried using a USB port on my mains and charging was like 1% per 30 mins, plugged it directly via the AC adapter in and started going up 1% per min.
I am using the charger that came with my Nexus One at the moment. It seems to work fine with all my other phones, does the N7 need more power or something?
Matt1408 said:
I am using the charger that came with my Nexus One at the moment. It seems to work fine with all my other phones, does the N7 need more power or something?
Click to expand...
Click to collapse
The Nexus One's charger is 1A, the Nexus 7 charger is 2A. ...Have you even attempted to use the correct charger before starting this thread?
just lou said:
The Nexus One's charger is 1A, the Nexus 7 charger is 2A. ...Have you even attempted to use the correct charger before starting this thread?
Click to expand...
Click to collapse
Irrelevant.
qoncept said:
Irrelevant.
Click to expand...
Click to collapse
It is? Then why does it come with a 2A charger instead of a 1A charger? ...And go.
just lou said:
It is? Then why does it come with a 2A charger instead of a 1A charger? ...And go.
Click to expand...
Click to collapse
I didn't add the link for fun. Click it and learn.
qoncept said:
I didn't add the link for fun. Click it and learn.
Click to expand...
Click to collapse
I knew you wouldn't answer the question.
qoncept said:
Irrelevant.
Click to expand...
Click to collapse
It's not irrelevant. It means the 2A charger can source up to 2 amps if needed (which obviously it does need).
A tablet has a lot bigger battery and draws more current then a phone, which is why it has a bigger charger. If the charger can't source enough current to overcome the rate that the device uses power, then it won't charge or will take forever.
Luxferro said:
It's not irrelevant. It means the 2A charger can source up to 2 amps if needed (which obviously it does need).
A tablet has a lot bigger battery and draws more current then a phone, which is why it has a bigger charger. If the charger can't source enough current to overcome the rate that the device uses power, then it won't charge or will take forever.
Click to expand...
Click to collapse
You know what.. I confused this thread with another. My bad. Not irrelevent.
BUT.. 1 amp is more than enough to charge an N7. My old 700ma rated Blackberry charger can charge it from 0-100% in under 8 hours.
just lou said:
The Nexus One's charger is 1A, the Nexus 7 charger is 2A. ...Have you even attempted to use the correct charger before starting this thread?
Click to expand...
Click to collapse
Why would I use it if I thought it was the same?
qoncept said:
BUT.. 1 amp is more than enough to charge an N7. My old 700ma rated Blackberry charger can charge it from 0-100% in under 8 hours.
Click to expand...
Click to collapse
The stock 2A charger does it in about 3 hours and change from full drain power down to full charge.
Both of you are right, not the irrelevant part mind you but the part that it is enough and it may not be.
It all depends on what the tablet is doing at charging time. If it is off and the leakage current is low (as it should be) then most any 5v transformer will do. It will just take longer to charge.
HOWEVER if the transformer is not able to feed the N7 with more current than it needs to operate, on or off, sorry it won't work, no charging for you.
Now shake hands and go play outside.
Sent from my Nook Tablet using xda premium
qoncept said:
You know what.. I confused this thread with another. My bad. Not irrelevent.
BUT.. 1 amp is more than enough to charge an N7. My old 700ma rated Blackberry charger can charge it from 0-100% in under 8 hours.
Click to expand...
Click to collapse
No problem. I didn't mean to get snippy either, but I'm having a sh*tty day. ..To get back on topic, being an amateur radio operator, I have to have a little knowledge on electronic theory. My original response wasn't really to debate whether 1A is actually enough to charge an N7. My post to the OP was pointing out that he is in fact using a charger rated at half the amps of the rated charged of the N7, for whatever the reason it isn't working, and it also seems instead of trying the correct charger, he came directly in here.
---------- Post added at 05:11 PM ---------- Previous post was at 05:11 PM ----------
magius said:
Now shake hands and go play outside.
Sent from my Nook Tablet using xda premium
Click to expand...
Click to collapse
:laugh:
The confusion (to me) was that the OP said it STOPPED at 41%. I don't think it stopped, that was just as far as it had gotten.
Maybe you can help me with my problem, now that this one is solved..
http://forum.xda-developers.com/showthread.php?t=1784322
magius said:
HOWEVER if the transformer is not able to feed the N7 with more current than it needs to operate, on or off, sorry it won't work, no charging for you.
Click to expand...
Click to collapse
The transformer is a source. It doesn't feed or force, it gives what is demanded by what it connected to it, as long as it's not over what it can handle (2A max rating) - in which case the coils of the transformer will get hot, possibly melting off the clear enamel insulation of the coils until you get a short and sparks flying out of your outlet, and pop a surge protector (hopefully)
edit: well unless it has some over_current protection built into it, or a fuse, in which case it would just die and not charge anymore :laugh:
edit2: But as just lou said, try the correct charger.
Another problem from using too low of a current transformer is you could put too much stress on it, and then it's voltage regulation circuits don't keep a nice clean steady voltage, and instead you could get spikes or noise, and that could lock up your device too. Of course this is just all possibilities, but to rule out variables it's just easier to use the correct charger
If the Nexus tablet requires 2 amps, then it will pull upto 2 amps. If it's doing this from a 1 amp supply, then the 1 amp power supply will overheat and possibly break. Amps can be larger than needed, but make sure voltage is correct.
Related
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.)
Click to expand...
Click to collapse
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
Click to expand...
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.
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
Click to collapse
Please show some proof/references for this statement.
Valynor said:
Please show some proof/references for this statement.
Click to expand...
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.
Has anyone found a wall charger that they're happy with? I have an Amazon basics 2.1 Amp one that charges OK and shows up as an A/C charger in the battery stats, but it's not as fast as the stock one (which already is slow).
I'd post a link to what I have, but the forum still sees me as a newbie even though I've been lurking around for a few years now.
domlazz said:
Has anyone found a wall charger that they're happy with? I have an Amazon basics 2.1 Amp one that charges OK and shows up as an A/C charger in the battery stats, but it's not as fast as the stock one (which already is slow).
I'd post a link to what I have, but the forum still sees me as a newbie even though I've been lurking around for a few years now.
Click to expand...
Click to collapse
i'm still waiting for the pogo chargers to go back on sale.
fionic said:
i'm still waiting for the pogo chargers to go back on sale.
Click to expand...
Click to collapse
Same... :crying:
If you don't really care about super fast charging time almost all usb wall chargers are the same because of the limitations of a usb cable. Just color, shape, and size might vary
I'm using the my hp Touchpad charger. It seems like it charges faster than the original charger. I'll have to test and see though.
Sent from my Nexus 10 using Tapatalk HD
I bought a pogo charger so it won't take up the micro usb slot and also safer charging with pets (or kids). If I'm lucky it will charge faster too.
the pogo charger uses the original samsung ac adapter though.. it doesn't come with one
I just use any random charger I have (I think I use an old Kindle one right now) and leave it charge while I sleep. I have no complaints and have a POGO on order.
I ordered the Powergen chargers for both the wall and my car. They supply 3.1 amps so whatever the max is that the N10 will take, it will get it.
Search for "powergen 3.1" on Amazon and you'll find both.
I'm using my Asus Transformer Prime charger with mine. It seems to work well.
Sent from my Nexus 10 using xda premium
scooterboy5 said:
I ordered the Powergen chargers for both the wall and my car. They supply 3.1 amps so whatever the max is that the N10 will take, it will get it.
Search for "powergen 3.1" on Amazon and you'll find both.
Click to expand...
Click to collapse
Nice tip - thanks. That and the POGO has to be about as fast as it gets PLUS with the second USB port I will be able to charge my phone and tablet at the same time, same charger.
scooterboy5 said:
I ordered the Powergen chargers for both the wall and my car. They supply 3.1 amps so whatever the max is that the N10 will take, it will get it.
Search for "powergen 3.1" on Amazon and you'll find both.
Click to expand...
Click to collapse
Thanks everyone for your input. I ended up ordering the Powergen 3.1 charger suggested above. I'll report back on what my experience is. I did note that one of the reviews of that item at Amazon says it charges the Nexus 10 well, so my hopes are high.
Next question - anyone know what happens if you plug in the POGO charger and a USB charger at the same time?
Your charger isnt going to make a great deal of difference in charge time. An updated and/or custom kernel will help a LOT more with that.
The AC wall unit isn't a charger, it's the power supply for the charger inside the N10.
Me and another N10 owner measured how much current the N10 draws from the PS and it was less than 1A, so the device isn't even asking anywhere near the max that the PS can supply. Unless there is someother reason and there very well could be, a larger PS "might" be a waste of time/money.
I think the N10 charger uses a special usb protocol which allows it to charger faster than most
invisibro said:
Your charger isnt going to make a great deal of difference in charge time. An updated and/or custom kernel will help a LOT more with that.
Click to expand...
Click to collapse
I'm intrigued; how is that? More importantly, does such a kernel currently exist? I started this thread in search of a second charger that just worked as well as the original one. I'd be happier if could find something that did better than the OEM.
jerryp7 said:
Nice tip - thanks. That and the POGO has to be about as fast as it gets PLUS with the second USB port I will be able to charge my phone and tablet at the same time, same charger.
Click to expand...
Click to collapse
What I can tell you is that both powergen units charge the N10 fine.
What I can't tell you is whether they charge the N10 any faster than the stock wall unit. I haven't done any testing.
I'm expecting my pogo cable any day, maybe I'll do some testing then.
There are so many differing theories here, who knows?
scooterboy5 said:
What I can tell you is that both powergen units charge the N10 fine.
What I can't tell you is whether they charge the N10 any faster than the stock wall unit. I haven't done any testing.
I'm expecting my pogo cable any day, maybe I'll do some testing then.
There are so many differing theories here, who knows?
Click to expand...
Click to collapse
Yes so many, maybe if someone would write to Mr google and ask him he would explains it to us hehehe
I have seen some dual USB port PS that are rated "total" for both "not" each port. How is this PowerGen 3.1?
Just check and it's listed as "shared", so that's 3.1A total.
The description clearly states that each port can supply up to 3.1A. If both are used at once, the 3.1A is shared.
I've googled it and I'm getting very mixed opinions. Most say 2.1 of course is faster for charging. I am led to believe that because even the box to there car chargers say the same.
I would like to disagree but need help understanding why. Maybe I'm wrong and I have a faulty charger.
My charger has two ports. One is 1amp and the other is 2.1amp. My 1amp side seems to actually charge my phone faster than the 2.1amp side. Also with 2.1amp while in listening to music through Bluetooth using GPS and navigation all at the same time, it tells me my phone is dying faster than it's able to charge. With the 1amp side I'm able to hold a steady charge sometimes going up at least 2 percent during a 30 minute drive.
What's your opinions? This isn't the iPhone or Samsung threads so I'm sure we have some of the smartest guys/girls here on xda
Edit: sorry I'm a bit stoned atm so forgive me for my typos and I'll fix tomorrow.
.....don't judge. I live in Washington state. It's just as legal as buying a bottle of beer.
Sent from my HTCONE using Tapatalk now Free
Ok sober now. So nobody knows why 1amp charges faster on this phone than a 2.1amp car charger? I've used several car chargers and it's the same issue.
Sent from my HTCONE using Tapatalk now Free
tsdeaton said:
Ok sober now. So nobody knows why 1amp charges faster on this phone than a 2.1amp car charger? I've used several car chargers and it's the same issue.
Sent from my HTCONE using Tapatalk now Free
Click to expand...
Click to collapse
It should be a no brainer that a 2 amp charger will charge your phone faster as opposed to a 1 amp simply because one has more output than the other. But I believe that because of the smaller battery the phones have, they need a smaller amp per second of charge. If not then it may destabilize your battery.
Thats just my two cents though. Dont quote me
tsdeaton said:
I've googled it and I'm getting very mixed opinions. Most say 2.1 of course is faster for charging. I am led to believe that because even the box to there car chargers say the same.
I would like to disagree but need help understanding why. Maybe I'm wrong and I have a faulty charger.
My charger has two ports. One is 1amp and the other is 2.1amp. My 1amp side seems to actually charge my phone faster than the 2.1amp side. Also with 2.1amp while in listening to music through Bluetooth using GPS and navigation all at the same time, it tells me my phone is dying faster than it's able to charge. With the 1amp side I'm able to hold a steady charge sometimes going up at least 2 percent during a 30 minute drive.
What's your opinions? This isn't the iPhone or Samsung threads so I'm sure we have some of the smartest guys/girls here on xda
Edit: sorry I'm a bit stoned atm so forgive me for my typos and I'll fix tomorrow.
.....don't judge. I live in Washington state. It's just as legal as buying a bottle of beer.
Sent from my HTCONE using Tapatalk now Free
Click to expand...
Click to collapse
i just drove 4 hours with a 2.1 amp , fast charge kernel and i can confirm your exact same findings. no idea why.
sdlopez83 said:
i just drove 4 hours with a 2.1 amp , fast charge kernel and i can confirm your exact same findings. no idea why.
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Be careful with those 2 A chargers. I have seen a lot of threads with fried Ones because of chargers lately
Sent from my HTCONE using Tapatalk
Answer
HTC put a limit on how fast the phone can charge. The chipset supports rapid charging but at what cost (of the battery)? So to be safe HTC disabled that feature of the chipset. So even if you plugged it into a 4 amp USB connector, you are not going charge any faster than say 1 amp. Don't know what the specifications are on the optimal amperage...
elvisypi said:
Be careful with those 2 A chargers. I have seen a lot of threads with fried Ones because of chargers lately
Sent from my HTCONE using Tapatalk
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Fried what specifically? phone or battery?
sdlopez83 said:
Fried what specifically? phone or battery?
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Motherboard
Sent from my HTCONE using Tapatalk
Using a higher amp charger cannot damage the battery. The phone will only pull as many amps from the charger as it needs (probably 1.5 amps max).
Source: basic physics.
zaner123 said:
Using a higher amp charger cannot damage the battery. The phone will only pull as many amps from the charger as it needs (probably 1.5 amps max).
Source: basic physics.
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I am saying motherboard. I don't know about physics, but I know from reading the troubleshooting thread that many people have now expensive bricks because of those chargers
Sent from my HTCONE using Tapatalk
elvisypi said:
I am saying motherboard. I don't know about physics, but I know from reading the troubleshooting thread that many people have now expensive bricks because of those chargers
Sent from my HTCONE using Tapatalk
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could you possibly link to those threads? I have the dual charger 1&2.1. My results are opposite of op my 1a doesn't charge phone but the 2.1 gains charge while driving even while watching movie! id like to read up if it may be problematic! thx
Htc one battery originally is charged by 5V and 1A charger; Can 5v. and 1.3 A damage the phone?
One thing that nobody here has mentioned is the possibility that your charger might have been wired wrong and the side that charges faster is actually the 2.1mah connection instead of 1mah.
With all of the chargers from everywhere in the world that we get them from and they are supplied from, anything can happen that We don't expect.
Maybe you might want to get it tested with an OHM Meter to verify which connector is the Higher and which is the Lower.
gd761 said:
One thing that nobody here has mentioned is the possibility that your charger might have been wired wrong and the side that charges faster is actually the 2.1mah connection instead of 1mah.
With all of the chargers from everywhere in the world that we get them from and they are supplied from, anything can happen that We don't expect.
Maybe you might want to get it tested with an OHM Meter to verify which connector is the Higher and which is the Lower.
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The only thing that is different (as far as the phone is concerned) is whether it sees an AC style charger or DC style. No matter what, the phone will only pull what the charging circuit "says" to pull.
Sent from my HTCONE using XDA Premium 4 mobile app
For some chargers, sometimes the 2 Amp port appears to be using the Apple protocol for USB power, so that port will only provide 0.5 Amps to most other devices. And when the1 Amp port somewhat over delivers, and can source 2 Amps if nothing else is connected and 1.5 Amps if the 2 Amp port is sourcing 0.5 Amps for a non-Apple device. Thus some chargers can support one high power non-Apple device (in the 1 Amp port) and one lower power device (in the 2 Amp port). FYI I use this charger bought on Amazon---Avantek. Worked really well, versatile and low profile.
elvisypi said:
I am saying motherboard. I don't know about physics, but I know from reading the troubleshooting thread that many people have now expensive bricks because of those chargers
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Click to collapse
Maybe a myth?
This might be the stupidest question i have ever asked in XDA forum but..... I really want to know the answer to make sure it won't do anything bad to my Z1.
I used galaxy note 2 charging adapter which is a bit stronger than the original z1 charger (1500mA Vs 2000mA) and found out that charging time difference is quite noticeable. i guess 500mA difference is huge.
Since I read few news that people were experiencing fire or explosion while they were charging (or something, which i don't know if it's 100percent true) i want to know if putting too much power is bad for the Z1.
the charge for z1 is 2A. You can plugin 3A, but it wont take that extra, can only accept max 2A.
Generally speaking having extra 1A wwill heat up device but wont cause fire, unless you put in 1000A then it will explode
long1988 said:
the charge for z1 is 2A. You can plugin 3A, but it wont take that extra, can only accept max 2A.
Generally speaking having extra 1A wwill heat up device but wont cause fire, unless you put in 1000A then it will explode
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wait..what?
.... my charger says 5.0vdc == 1500mA
choihan06 said:
I used galaxy note 2 charging adapter which is a bit stronger than the original z1 charger (1500mA Vs 2000mA) and found out that charging time difference is quite noticeable. i guess 500mA difference is huge.
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Use whichever charger you have. Using a 2A charger will of course decrease charge time. Using a 3A charger will do nothing for you, because phone only accepts 2A if I remember correctly.
long1988 said:
the charge for z1 is 2A. You can plugin 3A, but it wont take that extra, can only accept max 2A.
Generally speaking having extra 1A wwill heat up device but wont cause fire, unless you put in 1000A then it will explode
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Click to collapse
Using a 1000A or 3A charger will not make a difference. Phone will not heat up more than using a 2A charger. The phone will draw those 2A and nothing more. Unless there's a custom kernel parameter we can change to increase charging current.
choihan06 said:
wait..what?
.... my charger says 5.0vdc == 1500mA
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That is correct. Stock supplied charger is 1.5A, at least in the scandinavian countries.
I charge my Z1 with N7 charger (2.0) and everything is O.K.
Just like guys said - Z1 can use up to 2.0 and it's perfectly safe to use it but make sure charger is good, if you use junk for 1$ you could damage your device.
If we gave 1000$ for device we can pay 10$ more for good charger.
Sent from my Z1
I only ever use the 1.5A factory charger if I'm leaving it overnight. Its too slow otherwise so I also use a 2A charger from my Asus transformer
Hey you who pretend to know it all, let me clarify
You are saying the official charge is 1.5, but also say it take 2a as well, let me ask you, why do you think the phone can only overcharge up to 2 a and not to 3a as you were denying me?
My charger say it is 2a, it is official, dont being rude and frankly deny other opinion, at least try "from my poimt of view"
Sent from my C6903 using xda app-developers app
U might have a real special packaging as it usually comes with only 1.5mA
Also snapdragon 800 supports quickcharge 3.0 which allows chargers up to 4.0mA
These chargers will release in 2014
Which charger to use? (no quickcharge)
I bought a Samsung charger for my upcoming Nexus 6, i don't want to use the quick charger that comes with the phone. I am starting to suspect that this one is also a quick charger, can anyone look at the attached pictures and tell me? Also if it isn't a quick charger i would like to use it for the long run so my second question is would my battery be affected because of what says on the back of the box that i highlighted? In the highlight are also the specs of the charger, can someone clear this up for me?
EDIT: I cannot post pictures on the forum just yet, so here are the specs
10W Samsung travel adapter, Input 100-240VAC 50-60Hz, Output 5.0VDC 2A
Use only with compatible Samsung devices
mohijavata said:
I bought a Samsung charger for my upcoming Nexus 6, i don't want to use the quick charger that comes with the phone. I am starting to suspect that this one is also a quick charger, can anyone look at the attached pictures and tell me? Also if it isn't a quick charger i would like to use it for the long run so my second question is would my battery be affected because of what says on the back of the box that i highlighted? In the highlight are also the specs of the charger, can someone clear this up for me?
EDIT: I cannot post pictures on the forum just yet, so here are the specs
10W Samsung travel adapter, Input 100-240VAC 50-60Hz, Output 5.0VDC 2A
Use only with compatible Samsung devices
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2 amp will deliver 2 amp, which is what the turbo charger will deliver, so yes it will turbo charge. Why don't you want to turbo charge?
danarama said:
2 amp will deliver 2 amp, which is what the turbo charger will deliver, so yes it will turbo charge. Why don't you want to turbo charge?
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I want to use the phone for a couple of years and don't want to shorten the battery life and also have the risk of inflating battery and everything that comes with it. What kind of charger should i buy to charge it in some "normal" time? The salesman in Samsung store told me this one charges Note 4, Galaxy S5 - which is why i bought it - the S5 doesn't have the quickcharge tech so i instantly thought it was an ordinary charger. On the other hand, my Galaxy Nexus official charger is rated for 1.0 A which surely isn't strong enough to charge the 6 properly so i am confused with what kind of a charger and with what ratings should i get? Thank you in advance.
mohijavata said:
I want to use the phone for a couple of years and don't want to shorten the battery life and also have the risk of inflating battery and everything that comes with it. What kind of charger should i buy to charge it in some "normal" time? The salesman in Samsung store told me this one charges Note 4, Galaxy S5 - which is why i bought it - the S5 doesn't have the quickcharge tech so i instantly thought it was an ordinary charger. On the other hand, my Galaxy Nexus official charger is rated for 1.0 A which surely isn't strong enough to charge the 6 properly so i am confused with what kind of a charger and with what ratings should i get? Thank you in advance.
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2amps isn't going to shorten the life below 2 years. Higher amps only shorten life if they are above battery tolerances, which 2 amps is not.
Anyway, you'll want a 1 or 1.2 amp charger for slow charging
danarama said:
2amps isn't going to shorten the life below 2 years. Higher amps only shorten life if they are above battery tolerances, which 2 amps is not.
Anyway, you'll want a 1 or 1.2 amp charger for slow charging
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Can i use this charger safely with the Nexus 6? After some researching this one is actually quickcharge 1.0 by the specs so i it should not be so "harsh" with the temperature on the phone.
mohijavata said:
Can i use this charger safely with the Nexus 6? After some researching this one is actually quickcharge 1.0 by the specs so i it should not be so "harsh" with the temperature on the phone.
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Yes.
If I were you, I would use the charger that comes with the Nexus 6. Which is tested by Motorola to work properly. I've had my Nexus 6 since December 2014 and no problems. I charge through my laptop will at work though.
logicrulez said:
If I were you, I would use the charger that comes with the Nexus 6. . .
I charge through my laptop will at work though.
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He wants slow charging. So charging through laptop / pc will be fine.
Charge cspacity of usb ports is 500 mA (900 mA for USB 3.0), that's good for slow charging.
Also 1-dollar charger from eBay will be fine.
NLBeev said:
He wants slow charging. So charging through laptop / pc will be fine.
Charge cspacity of usb ports is 500 mA (900 mA for USB 3.0), that's good for slow charging.
Also 1-dollar charger from eBay will be fine.
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He wants it but hasn't got a valid reason to want it. The motorola charger is the best charger to use and it won't shorten his battery life.
danarama said:
He wants it but hasn't got a valid reason to want it. The motorola charger is the best charger to use and it won't shorten his battery life.
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And slow charging won't lengthen it.;(
NLBeev said:
And slow charging won't lengthen it.;(
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Nope. So the only thing that will change is his phone will take longer to charge.
That said for me, turbo charge stopped working and I'm very annoyed.
Google have first sent me a new charger which still hasn't arrived. Though I think the issue is the phone. But I wanted to avoid a refurb as long as possible. Can't live without turbo charge now.
I have this charger, http://www.walmart.com/ip/Belkin-F8J031TT04-BLK-Micro-Wall-car-Chrg-Kit-2.1a-10w-W-4ft/40457559, but i got just the charger for $20. It most definitely doesnt turbo charge, it takes atleast 2 hours, so id say its a "normal" charge for this phone and i think its better than the turbo charger, because it doesnt get hot and its still decently fast
danarama said:
. . .
Google have first sent me a new charger which still hasn't arrived. Though I think the issue is the phone. But I wanted to avoid a refurb as long as possible. Can't live without turbo charge now.
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The turbo output is only supplied on turbo enabled devices. So there is something wrong with switching to turbo modes 9 V and/or 12 V
I am curious what is the cause of this issue.
Did you try an 'charge app' like Ultra Fast Charger.?
NLBeev said:
The turbo output is only supplied on turbo enabled devices. So there is something wrong with switching to turbo modes 9 V and/or 12 V
I am curious what is the cause of this issue.
Did you try an 'charge app' like Ultra Fast Charger.?
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I think its a usb port issue myself.
I don't know what a charge app is. I am monitoring my input though. I know the issue is not software as it just stopped working one day last weekend with no software changes.
Actually,.could even be the battery as.my wireless charger is very slow now too.
danarama said:
I think its a usb port issue myself.
I don't know what a charge app is. I am monitoring my input though. I know the issue is not software as it just stopped working one day last weekend with no software changes.
Actually,.could even be the battery as.my wireless charger is very slow now too.
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There are some apps in the play store claiming to boost the battery charge.
When wireless charging is also slow, than it could be indeed the battery.
Maybe a complete discharging ?
BTW
Turbo mode is only active when the battery is less than 75% charged.
NLBeev said:
There are some apps in the play store claiming to boost the battery charge.
When wireless charging is also slow, than it could be indeed the battery.
Maybe a complete discharging ?
BTW
Turbo mode is only active when the battery is less than 75% charged.
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I don't believe they can but I'm not.going.to try anyway.
You should use a 5 Volt 2 Amp charger, those chargers are the one's that most phones use. Most new phones are using Qualcomm's Quick Charge 2.0, which you should use but if you are not comftorable then the 5 Volt 2 Amp will work good.
Errr, QuickCharge will in fact degrade a battery faster, it's still used because most phones only have a 2 year lifespan.
A non QuickCharger will also make it run less hot while charging and also be less likely to cause cell expansion. Not sure why there's so many people denying this.
EDIT:
Including some sources:
http://www.sciencedaily.com/releases/2015/04/150414094117.htm
Please don't tell him that it won't degrade his battery when it definitely will. It's basic chemistry.
To OP:
Any regular non Quick USB charger of reputable make will do fine. I use an older HTC charger. Don't get a super cheap offbrand one as it probably has fluctuating voltage which will also damage your battery.
seshmaru said:
Errr, QuickCharge will in fact degrade a battery faster, it's still used because most phones only have a 2 year lifespan.
A non QuickCharger will also make it run less hot while charging and also be less likely to cause cell expansion. Not sure why there's so many people denying this.
EDIT:
Including some sources:
http://www.sciencedaily.com/releases/2015/04/150414094117.htm
Please don't tell him that it won't degrade his battery when it definitely will. It's basic chemistry.
To OP:
Any regular non Quick USB charger of reputable make will do fine. I use an older HTC charger. Don't get a super cheap offbrand one as it probably has fluctuating voltage which will also damage your battery.
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Actually you've misread (or not read fully). No one disputes the science. That article isn't accurate. All it says is "too quickly" and if you read what I have said, is that the turbo charger is within acceptable tolerances. I.E. It is not "too quickly"
danarama said:
Actually you've misread (or not read fully). No one disputes the science. That article isn't accurate. All it says is "too quickly" and if you read what I have said, is that the turbo charger is within acceptable tolerances. I.E. It is not "too quickly"
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I think you're not understanding the basic chemistry. More heat = more degradation of the Li-ion battery, regardless of tolerances. A lower power charge will always degrade the battery slower. This isn't about tolerances.