Got it from eBay.
Charges faster in phone...while using!
If battery is around 40% it being be charged overnight.
Anyone else experience this?
could be the amp? maybe below 1 amp? Samsung charger has 2amps om it. check your charger and look for the amp. btw. the lower the amp the better for your battery..
Buy an OEM charger. The Samsung one is $50 from Samsung website but you can get the Asus charger from Google play store for $25. Both are two ampbi believe. Or you can get the 1a for $25 from samsung. Getting OEM directly from an OEM or authorized reseller or a storefront lime Google is key. Getting cheap chargers is gonna bite you in the ass one day or think about it like this. Why keep wasting time buying cheap chargers again and again when you can put up proper money and get quality in one go and have peace of mind for a few years. I even stopped buying chargers from amazon because they're just cheap knockoffs too. Phi hong makes good chargers and power supplies but they are harder to source. Phi hong came with my nexus one andy galaxy nexus OEM Home dock.
Anyways, aside from that part of the reason for slow charging is you probably have an unsafe charger that is not rated what it really is and is made of poor materials. Getting a quality 1a or higher, preferably 2a in this case and your gnote2 should charge @ 1.8a. In other words, you can charge from zero to full in ~2-2.5 hours. Or from partially full to 100% in less than 2 easily.
Sent from my GT-N7100
Unless I am mistaken, OP is referring to battery chargers, not usb chargers. That's how I charge mine, too. I have spare batteries, and they all get charged directly. When my battery is low, I just swap. I hate having my phone attached to a cord, even at night.
Yes, all the battery chargers I've had for every device (including this one) have been lower amp than the usb chargers supplied with the phone. It is especially slow for this huge battery for the Note 2. While it bothers me in concept, it's never actually been an issue for me, so I haven't done anything about it. I don't know if higher amp battery chargers are available, but I don't feel like spending extra money on one.
As far as battery health goes, charging at a lower amperage certainly isn't hurting the battery. If anything, it's actually better for it.
Yes...charging just the battery with wall charger.
@ 40% it will not be charged at 6am when I wake!!!
Are there better wall chargers?
Why do you hate having your phone attached to a Cord overnight. I heard that's fine and do it every night.!
dan_tm said:
Unless I am mistaken, OP is referring to battery chargers, not usb chargers. That's how I charge mine, too. I have spare batteries, and they all get charged directly. When my battery is low, I just swap. I hate having my phone attached to a cord, even at night.
Yes, all the battery chargers I've had for every device (including this one) have been lower amp than the usb chargers supplied with the phone. It is especially slow for this huge battery for the Note 2. While it bothers me in concept, it's never actually been an issue for me, so I haven't done anything about it. I don't know if higher amp battery chargers are available, but I don't feel like spending extra money on one.
As far as battery health goes, charging at a lower amperage certainly isn't hurting the battery. If anything, it's actually better for it.
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rockky said:
Why do you hate having your phone attached to a Cord overnight. I heard that's fine and do it every night.!
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Not for the phone, for me. It just bothers me having a wireless device locked to a wall. There's no reason for it. And I frequently get up in the night for various reasons (kids, work, insomnia, etc), and it bugs me unplugging in the middle of a charge cycle.
Incidentally, a non-removable battery was a deal breaker, and one of the reasons I didn't get a Nexus 4. I got used to never plugging in my last phone, and I don't want to go back. It was torture the first week or two with the N2 before my spare batteries arrived.
The charger should have its output printed on it, I've had a look at the pics on ebay and the first two I found that I could read were 500mA and 350mA, the original charger is 2A or 2000mA. Samsung make there own battery charger http://www.samsung.com/au/consumer/...es/EB-H1J9VNEGSTD?subsubtype=other-multimedia the output is 1.7A so much closer to the original usb charger.
I'd be worried about my back cover getting loose doing what you do. I had three batteries for my old phone, but I did not swap them on a daily basis, just when travelling or away from power for an extended time. I've ordered some wireless chargers so I can have one by my bed and another downstairs. I know they only output 500mA too, but for an overnight charge thats fine for me. I dont think there is any issue with interrupting the charge cycle, the two main enemies of lithium batteries are heat and being totally/almost discharged on a regular basis. Its best to keep them topped up.
scote said:
The charger should have its output printed on it, I've had a look at the pics on ebay and the first two I found that I could read were 500mA and 350mA, the original charger is 2A or 2000mA. Samsung make there own battery charger http://www.samsung.com/au/consumer/...es/EB-H1J9VNEGSTD?subsubtype=other-multimedia the output is 1.7A so much closer to the original usb charger.
I'd be worried about my back cover getting loose doing what you do. I had three batteries for my old phone, but I did not swap them on a daily basis, just when travelling or away from power for an extended time. I've ordered some wireless chargers so I can have one by my bed and another downstairs. I know they only output 500mA too, but for an overnight charge thats fine for me. I dont think there is any issue with interrupting the charge cycle, the two main enemies of lithium batteries are heat and being totally/almost discharged on a regular basis. Its best to keep them topped up.
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It looks like the OEM battery charger is available on ebay for around $15. That's good to know in case mine ever crap out on me. These cheapies that I get tend to.
As far as the back cover getting loose, after 3 months, it is a little bit looser than when it was new. 1.5 years with my G2x didn't loosen it at all, but the build quality on that thing was fantastic. I keep this in a case anyway, so it being a little looser goes unnoticed. If it gets bad, back cover replacements are cheap.
If one of the devs can make the kernel capable of fastcharge, it would not take but half the time to charge. Yank who is working with Faux on his kernel, helped make the kernel fast charge capable.
Sent from my SGH-T889 using xda app-developers app
UnixSlayer said:
If one of the devs can make the kernel capable of fastcharge, it would not take but half the time to charge. Yank who is working with Faux on his kernel, helped make the kernel fast charge capable.
Sent from my SGH-T889 using xda app-developers app
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But what is the point of having it charge fast, when all it is is going to drain faster?
I charge mine overnight with a charger rated at 750mah I believe and it last me a whole day. As oppose to using a 2.1 am charger I have, where the battery percentage would start dropping by the first hour.
Correct me if I am wrong here, but this is what I've notice with my last few phones.
The Perseus kernel with stweaks has the ability to change the charging parameters.
With it overclocked/undervolted I am getting better life than I did on stock.
Not for sure what you mean as it depleting the charge faster on a higher amperage charger. Kind of sounds like you may have had failing batteries, etc.
There seem to be a few misunderstandings here regarding batteries and chargers.
1) The charge rate, when the battery is in the phone, is controlled BY the phone. The charger itself just supplies regulated power to the phone. How much current is put into the battery at any given time is up to the phone, which is why kernels can do things like fast charge, it's controlled by the kernel. Now, the reason the battery charges faster when using the stock charger vs. something lower current or a computer is simple. The phone can detect what it's connected to within some limitations. It sounds like our phone can also sense the incoming voltage levels and back off if the supply becomes unstable.
2) Using the stock 2A charger is "harder" on the battery than a lower current charger. Not true, at least not within any margin of error you will be able to detect without specialized equipment. Lipo batteries are generally built to charge/discharge at 1C. C in this case stands for capacity. So our 3100mah batteries can charge at 3.1Amp and be within safety margin. So the 2Amp charger the phone comes with is perfectly fine for the battery. Without seeing a datasheet for the battery from Samsung, that's a good guess. And again, the phone controls the charge current based on a number of parameters. You could connect the phone to a 5V supply capable of 100Amp and it will still only use what it needs.
3) The percentage readout on the phone screen is a GUESS. Don't pay it too much attention. For this same reason, evaluating 3rd party batteries based on phone runtime etc is not useful. To validate the battery capacity with any accuracy requires a test setup discharging the battery through a known load and measuring how long it takes to get to a cutoff voltage. I've done some of these tests myself on stock and 3rd party batteries. In general, the OEM batteries are always at or above spec, the 3rd party battery manufacturers lie. Often by upward of 20%. Even the high $ batteries. Keep that in mind when shopping if you want extras or extended batteries.
4) Interrupting the charge cycle is bad. Nope. It's fine. On this same line of thought, full cycles ARE bad. Don't do it. Don't think too much about it either though. Just plug it in when convenient. Or set it on the wireless charger if you've installed one. Generally speaking, they actually don't like to be charged to 100% either. Keeping it at 20%-80% is actually best for the longevity of the battery cell itself. In practice, you will probably have a new phone before any of this is actually noticeable.
The OP sounds like they are talking about a stand-alone charger, where the battery is not in the phone. Those will vary wildly in quality and capability, particularly from ebay. They are probably cheap POS devices. Not that that's really a bad thing, just know about it. It's probably a very low charge rate device, perhaps even down to 100ma or so. That would take forever to charge our larger batteries. As for if there is a better one, probably. If Samsung makes one, it will probably charge faster than the phone with the provided charger plug as there would be no load from the phone using power. Of course, it will cost a lot more as well. Look for devices that at least claim they will charge at 2Amp or so. In practice, they will probably be a lot lower, but your chances are improved. Not many people will break out an ammeter and check, after all.
UnixSlayer said:
If one of the devs can make the kernel capable of fastcharge, it would not take but half the time to charge. Yank who is working with Faux on his kernel, helped make the kernel fast charge capable.
Sent from my SGH-T889 using xda app-developers app
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Perseus kernal has fast charging settings.
What ttabbal wrote is mostly correct. But the problem lies within some input voltage protection logic tied to the charger chip of the phone which is extremely (and too much so) sensitive.
rsalan said:
Perseus kernal has fast charging settings.
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Can people stop calling it fast-charge, it's an idiotic term which technically means nothing. While most kernels have some sort of charging speed configuration options, they're all useless in regard to this problem as the current in the end is decided by a different logic. You'll have to disable unstable power detection and that's the only way to make it work and fix the problem, unless you go hunting down high quality cables and chargers.
Personally I also encountered the problem as my stock S3 charger, as many others here have reported, has deteriorated and it would only charge at an effective 300mA. I disabled unstable power detection and now it charges at the full given current limits, without any issues.
rockky said:
Got it from eBay.
Charges faster in phone...while using!
If battery is around 40% it being be charged overnight.
Anyone else experience this?
Click to expand...
Click to collapse
You have to make sure it's "2a" charger capacity. It happened to me once. Go to monoprice.com and search for a universal 2a charger... pretty cheap
Related
I've had the Droid 3 for about 10 days now, and I've been encountering an intermittent problem with charging the phone.
Last night, I plugged in my phone so that it would charge overnight. I made sure that the connections to both the phone and the outlet were firm, and upon plugging it in, my phone's battery icon and lock screen both indicated that it was charging. However, when I woke up this morning, I discovered that the battery had actually continued to discharge overnight. Despite this, the battery icon and lock screen both continued to say that the battery was charging.
I've run into this problem three times this past week. It's entirely possible that I just have a defective device, but I wanted to check and make sure that nobody else was experiencing this issue before taking it back to Verizon.
Check the task manager for programs using lots of cpu. I've found that using google maps nav in the car dock while charging still in fact uses more power than it could charge. Your issue is with the screen off though so check for background apps.
Sent from my DROID3 using XDA App
I have had this problem 2 times and I have had the phone for about the same time. I plugged it in at like 40% watched a movie screen never came on till the movie was over I looked at my screen and the battery was at 11%. I was thinking maybe just a bad connection untill I looked at the notification bar and it said it was charging!
I just got my Droid 3 yesterday and last night, the first night of use, it did the same thing. Even if I go into battery usage and look at the graph it'll say charging but the power level will be going down. Very frustrating.
A Verizon rep I spoke with recommended trying a different charger. Sounds reasonable enough, so I'll give that a shot and post back after a few nights of use.
What is the current rating of the chargers you guys are using? (i.e. 850 mA, 1 A, etc). A good rule of thumb is not use anything less than 1 A (1000 mA).
The Motorola-supplied charger is 850mA.
RandomEncounter said:
A Verizon rep I spoke with recommended trying a different charger. Sounds reasonable enough, so I'll give that a shot and post back after a few nights of use.
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This sounds logical. I had this same problem two phones that happened to have a slide-out keyboard (Shift, G2) and the problem vanished when I used a different charger. I just read today that 100s of people were having this problem today in a news feed.
I was having the issue too, so I used a 2A charger that came with my Huawei tablet...no more issues! (Charge time is about 1.5 hours too!)
pplude said:
I was having the issue too, so I used a 2A charger that came with my Huawei tablet...no more issues! (Charge time is about 1.5 hours too!)
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I'd be careful about using higher amperage chargers. Don't want to be burning out the charging circuitry. Not saying you will.. just be careful using a charger not designed specifically for the device.
Apparently the new Moto LiPo batteries have another level of overcharge protection. To be safe, I'm going to use an ohm-meter about once a week or so to check the internal contacts (a higher ohm rating would suggest damage).
pplude said:
Apparently the new Moto LiPo batteries have another level of overcharge protection. To be safe, I'm going to use an ohm-meter about once a week or so to check the internal contacts (a higher ohm rating would suggest damage).
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Click to collapse
Good to know. I found one of those chargers for $6, I'm considering getting one now.
http://www.bargaincell.com/huaweiid...e-p-509461.html?cPath=58893_59091_59092_59093
elkay said:
Good to know. I found one of those chargers for $6, I'm considering getting one now.
http://www.bargaincell.com/huaweiid...e-p-509461.html?cPath=58893_59091_59092_59093
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Click to collapse
That's not the one I have, I'm using the USB-output charger from the S7 SLIM, then the Moto supplied USB cable.
Well, it's been a few days, and I haven't experienced the problem since switching to a different charger. Granted, the problem was intermittent, so it's difficult to know for certain if the charger was in fact the issue, but I'm content with this solution.
I've been using my iPad's 5.1V 2.1A charger without issues for a few days. It charges the extended battery from 10% to full in a little over an hour.
That's the dual-core proc for ya. Wonder why the Xoom uses a proprietary charger? dual-core devices nom battery.
Jewremy said:
That's the dual-core proc for ya. Wonder why the Xoom uses a proprietary charger? dual-core devices nom battery.
Click to expand...
Click to collapse
No? Dual core is more efficient, it shuts down one of the processors when it's not in use. Dual core means nothing about power efficiency. As a matter of fact, it can have an advantage. Each core uses less power, and combined, they can use less power than a similarly powerful chipset.
I've also run into some issues on my 5 day old Droid 3. It seems to be when disconnected from the charger. I have two regular Moto chargers for this, and tried a 1A HTC charger, which this thing will not charge from.
I tried using different micro USB cables, which didn't help, either. I was trying to move the phone around while charging, and seemed to encounter the issue. Either it's a connector issue for the mUSB, or the (especially short and stiff) charging cables have broken conductors inside, and we're getting a bad batch of cords.
Possibly the D3 has its own issue with charging, but I didn't have a problem until this morning. regular mUSB cords won't work for me at all, as I've tried all I have.
Given this issue, I'm wondering how widespread this is, and if it's something to take the phone back for. I took me a few hours (over 3) of waiting and fiddling with it, but it's at least charging now.
I had this issue to. I used a different charger and cord to charge my phone at night woke up the next day no charge. I went to work pluged in to my wall charger and still no charge. I did a factory reset thinking that might work but it did not. I was going to take it to a verizon store after work so on the way there I pluged in to my car charger an it started to charge so I skipped the store. When I got home I used a different cord and wall charger and it also worked. I did notice that when I plugged in the night before that a small little white light was lit up for a second in between the charging port and hdmi. I know there is a light there but never seen it light up before. So maybe that was behind all of this. Not had a problem sense.
Sent from my DROID3 using XDA App
The amperage you see stated PS units has no effect on your phone. That's not how many amps leaves the unit to charge your battery. That's how much the PS unit can handle as a draw. In reality the reason the stock ones are only 850 only means that the manufacture used spec parts for the PS unit. i would think that Motorola's minimum spec was 850 and so that's what the PS units manufacture used.
The higher the number means nothing other than you can bet the 1AMP one is going to out last the 850.
Of course the last statement is highly speculative because i have no idea what the amp rating for the phone is. But what i do know is that all the parts are made in china and you can bet they are not going to overbuild anything.
If the amp range is 675-832, which is the number I would expect then if the phone draws more than 850 for an extended period of time the units internal fuse could blow. Unless of course you purchased a third party unit that has an external fuse. Then you can jsut replace the fuse and not have to worry about going out to buy Chinese garbage. lolz
but then again i bet this Droid 3 is made in china, oh well. I like it anyway
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
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
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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.
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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.
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.
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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.
Here goes.....
I've been struggling with charging this phone. I have both the Sprint and the T-Mobile versions and I'm seeing the exact same thing with both. This phone simply won't pull more than roughly 600ma from a charger. With the best of equipment (chargers, cables, clean regulated power, etc etc) a ~600ma (+/- 15ma) is all I ever see at max draw.
I've tried all sorts of chargers including several stock. Same for cables. I know some cables are crappier than others and can restrict current....those that I found did that were tossed in the trash (don't want to keep the fubar cables anyway).
The phones have been in various states of operation too....from one extreme to the other....under heavy benchmark load to "first run" state from a complete reset (full wipe) with airplane mode on.
I said I have a "problem" above. What I mean is that my use-case is such that I use navigation with bluetooth streaming for podcast listening during my commute to and from work everyday. While I'm at work I plug into my TV to playback video podcasts via MHL. At best.....BEST....I can maintain my current state of battery. In other words, if I'm 39%, it'll stay thereabout when I'm plugged into a charger in either case.
No..."Power Saver" doesn't help. What I think would actually help is if power saver had the ability to disable some cores in addition to just governing to 1.1Ghz across all four.
To have a kickass phone that you really honestly can't truly kick ass with feels weird. This thing simply discharges faster than it can charge under any real world load. Maybe my personal use case is unconventional but I feel like it's not THAT unconventional seeing as that the features I use wouldn't be built in if no one ever used them, ya know?
I first noticed this behavior with my previous phone, the EVO 4G LTE. Even though the behavior was there, it wasn't as bad or noticeable due to what I think is the fact it was only dual core...maybe other factors too. But I'm not a developer/engineer so my observations are only from the outside looking in.
I know I can "tweak" my behaviors -- "...do this, or do that. Disable this, or disable that." I understand these things. But having to disable a bunch of things sorta goes against the idea of having this device in the first place.
At the end of day, my observations are my own and I know some are going to suggest I'm "holding it wrong" or whatever, but you guys gotta admit there's something up here with the very limited charge rate.
All that said, I still enjoy the phone. :angel:
PS - I've been using this to monitor current/voltage. The tool has been verified to be working properly by two EE's at my work.
http://www.amazon.com/Micro-SATA-Cables-Voltage-Current/dp/B005Z1E3IY
The stock charger. How much does that one show it pulls?
Because I have a 1a charger for my car and I can have the screen on the entire time and it charges, slower, but it charges.
Felnarion said:
The stock charger. How much does that one show it pulls?
Because I have a 1a charger for my car and I can have the screen on the entire time and it charges, slower, but it charges.
Click to expand...
Click to collapse
Same same.....doesn't matter the charger capability. Peak draw at any one time seems to be roughly 600ma...+/-. As the charge of the phone gets closer to full, the rate tapers off to roughly 200ma and then to about 80ma as it gets really really close.
I know HTC is trying to protect the battery, but I really get the feeling that this is way over-protective.
I took a picture with my Sprint ONE of my T-Mobile ONE on a 2.1amp wall charger. Notice, at roughly 1/2 charge, it's only pulling about 600ma. Too daggon slow in my opinion.
dougxd said:
Same same.....doesn't matter the charger capability. Peak draw at any one time seems to be roughly 600ma...+/-. As the charge of the phone gets closer to full, the rate tapers off to roughly 200ma and then to about 80ma as it gets really really close.
I know HTC is trying to protect the battery, but I really get the feeling that this is way over-protective.
I took a picture with my Sprint ONE of my T-Mobile ONE on a 2.1amp wall charger. Notice, at roughly 1/2 charge, it's only pulling about 600ma. Too daggon slow in my opinion.
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Click to collapse
I assume you mean a 2.1a charger from a Samsung product, that won't work. Samsung uses some signaling on the D+/D- wires to show "This is a Samsung product, charge at 2.1a"
HTC One does not have the ability to offer this signaling and thus will charge at usb rates of 500-600.
Some products short the data wires of the USB to signal that it can supply extra power. This is the type of signaling the HTC One can use. You would need a charger with this capability.
If you don't mind, if you could take a picture of the same setup with the stock charger, that would help.
EDIT: This particular device you've linked seems to block any signaling, according to the reviews on Amazon. I think your problem may lie there.
Felnarion said:
I assume you mean a 2.1a charger from a Samsung product, that won't work. Samsung uses some signaling on the D+/D- wires to show "This is a Samsung product, charge at 2.1a"
HTC One does not have the ability to offer this signaling and thus will charge at usb rates of 500-600.
Some products short the data wires of the USB to signal that it can supply extra power. This is the type of signaling the HTC One can use. You would need a charger with this capability.
If you don't mind, if you could take a picture of the same setup with the stock charger, that would help.
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Click to collapse
I understand what you mean. Note that in all my rambling on about various cables and chargers, if I wasn't explicit, I was implicit in that I've tried HTC stock gear too. Same results, no matter.
I do own and did try a few Samsung chargers and cables in addition to the myriad of others. I'm aware of Samsung's irritating attempts to lock people into using their accessories, thus the signaling modifications, but wanted to try them anyway. That's why I used a whole bunch of different chargers and cables. Some are not-so-good and others are great. The one charger I prefer is from VENTEV. It's a dual-port 4.2amp (2.1/per) wallwart.
http://www.amazon.com/Ventev-Wall-Charger-Dual-2-1A/dp/B00BEJSRDI
What I'm saying overall is that the big picture here suggests that we can't pull more than the peak 600ma or so charge rate, no matter what combination of doo-dads you toss at the phone. I'm all in if HTC has some super-secret special vapor rub one can use to charge faster, but even the stock charger they give us in the box which supports 1AMP doesn't deliver that since the phone itself doesn't pull more than what I've seen.
In the attached pics, the one of the charger is the Ventev. The other three show my T-mobile ONE just hit 90% charge and the rate has dipped to about 400ma on average. I took three snaps to show that it does fluctuate a bit. It'll ramp down more at about 95% or so and even more at 99%...................ALL of which is to be expected, I know.
To be clear, at this point, and what you see in these pics, is the stock HTC wall charger that we all get in the box with the phone, the stock HTC microUSB cable, and the measuring tool that is plugged into charger which the cable is then plugged into to then charge the phone. The meter can handle just over 2amps before it pops the internal fuse.
-Doug, KG3EK
dougxd said:
I understand what you mean. Note that in all my rambling on about various cables and chargers, if I wasn't explicit, I was implicit in that I've tried HTC stock gear too. Same results, no matter.
I do own and did try a few Samsung chargers and cables in addition to the myriad of others. I'm aware of Samsung's irritating attempts to lock people into using their accessories, thus the signaling modifications, but wanted to try them anyway. That's why I used a whole bunch of different chargers and cables. Some are not-so-good and others are great. The one charger I prefer is from VENTEV. It's a dual-port 4.2amp (2.1/per) wallwart.
http://www.amazon.com/Ventev-Wall-Charger-Dual-2-1A/dp/B00BEJSRDI
What I'm saying overall is that the big picture here suggests that we can't pull more than the peak 600ma or so charge rate, no matter what combination of doo-dads you toss at the phone. I'm all in if HTC has some super-secret special vapor rub one can use to charge faster, but even the stock charger they give us in the box which supports 1AMP doesn't deliver that since the phone itself doesn't pull more than what I've seen.
In the attached pics, the one of the charger is the Ventev. The other three show my T-mobile ONE just hit 90% charge and the rate has dipped to about 400ma on average. I took three snaps to show that it does fluctuate a bit. It'll ramp down more at about 95% or so and even more at 99%...................ALL of which is to be expected, I know.
To be clear, at this point, and what you see in these pics, is the stock HTC wall charger that we all get in the box with the phone, the stock HTC microUSB cable, and the measuring tool that is plugged into charger which the cable is then plugged into to then charge the phone. The meter can handle just over 2amps before it pops the internal fuse.
-Doug, KG3EK
Click to expand...
Click to collapse
I was directed here from another section of the forum. Have you tried using this?
https://play.google.com/store/apps/details?id=ccc71.bmw
With the stock charger it's telling me that I'm pulling in just under 950mA during peak charging and tapering off as it gets full.
i used a samsung 0,7C charger and it charges at a conntat +800 mah
the HTC chargers also sometime speaks a 900mah + but typically aroung 200 - 700 mah +
it seesm t fluctuate more often than the samsung which fluctuates to a lwoer range when bnearing 100% charge.
Dude, I have the same problem with my EVO LTE, exactly as you describe it, but for some weird reason, my car charger charges my phone normally while other chargers will take several hours to fully charge. I really hope it's a problem with the chargers and not our phones :thumbup: :thumbdown:
Sent from my EVO
Hi. So based on what people have posted, does this mean that there isn't much difference charging it from the wall socket and from a usb port in a computer? Since then charging rate is around 700-600mah and a usb charges at around 500mah
Sent from my HTC One using Tapatalk 4 Beta
http://androidcommunity.com/htc-one-doesnt-support-qualcomm-quick-charge-20130509/
So I download that app, and no matter what I do with my settings, I cannot get my phone to charger faster than about 550mAh. I am currently running at 384MHz CPU, 200MHz GPU, and Force Charge (On/Off), and 50mV undervolt. With the phone just laying there (screen on 65% battery), as I stare it currently saying +529mA (+23.00% /h).
I just tried playing a game, with those same exact settings and it stated charging at +217mah.
Edit: Was redirected here and didn't notice it was an old topic. sorry for reviving?
Hey guys I just bought the Nexus 6 and been looking around here and didnt find anything on best ways of charging the phone. I know the phone comes with the quick charger, but I tried it and the phone got real hot and I am pretty sure its not good for the battery in the long run.
That being said I do not want my battery to start losing charges since it does not have a replaceable battery. I am just curious if anyone on here uses other methods of charging the phone or better yet if anything is proven to be safer to charge. Right now I am charging the phone with my previous Samsung s4 charger and seems to charge fine, but if its not good to do this I would like to know sooner than later.
The n6 is meant to charge fast and isn't the first phone to use fast charge technology so I think we are fine using the stock charger.There's no way a battery charging that fast isn't going to get hot.
Define "real hot."
It is normal for the phone to get quite warm when charging. It should never be hot to the touch though. In this context, by hot, I mean you're unable to hold the phone. If you're able to touch the back, and keep your fingers there for more than a few seconds, then the phone is warm, not hot. Anyone who has had a battery overheat can tell you that the difference is unmistakable.
Chargers will, by definition, heat the battery to some extent -- how much, depends on what kind of charger. The order (from warmest to coolest) is: QuickCharge 2.0 (Turbo Charger), qi wireless charging, QuickCharge 1.0 ("Traditional" 2A charger), Regular 1A charger, USB charger (500ma). However, the heat produced by ANY of these chargers is normal, and the battery was designed to handle it. The life may be lessened by the heat to a very small extent, but it should still last way longer than the 1 to 2 years you'll likely own your phone. Plus, technically, the battery IS replaceable. It's just not designed to be user-replaceable, but there are businesses that will replace them. Or... you can purchase an after-market warranty, most of which cover batteries.
jt3 said:
Define "real hot."
It is normal for the phone to get quite warm when charging. It should never be hot to the touch though. In this context, by hot, I mean you're unable to hold the phone. If you're able to touch the back, and keep your fingers there for more than a few seconds, then the phone is warm, not hot. Anyone who has had a battery overheat can tell you that the difference is unmistakable.
Chargers will, by definition, heat the battery to some extent -- how much, depends on what kind of charger. The order (from warmest to coolest) is: QuickCharge 2.0 (Turbo Charger), qi wireless charging, QuickCharge 1.0 ("Traditional" 2A charger), Regular 1A charger, USB charger (500ma). However, the heat produced by ANY of these chargers is normal, and the battery was designed to handle it. The life may be lessened by the heat to a very small extent, but it should still last way longer than the 1 to 2 years you'll likely own your phone. Plus, technically, the battery IS replaceable. It's just not designed to be user-replaceable, but there are businesses that will replace them. Or... you can purchase an after-market warranty, most of which cover batteries.
Click to expand...
Click to collapse
I meant just warmer than normal use of the phone. I understand the phone gets hotter the faster you are charging, however I charge my phone every night so what is the point of the quick charging except when I am at work and my phones about to die?
I just feel that the phone will last longer by not quick charging it, but I could be wrong. What I really want to know is if anyone knows if its better for the phone if you just charge with the 1.0 and if so which charger should I use? Maybe another motorola one or would the samsung one work fine?
cleex024 said:
What I really want to know is if anyone knows if its better for the phone if you just charge with the 1.0 and if so which charger should I use? Maybe another motorola one or would the samsung one work fine?
Click to expand...
Click to collapse
Technically, yes, it'd be better for your battery, but realistically, you'll never notice, since you'll probably get a new phone long before battery life becomes an issue.
However, to answer your question, any 1A charger designed for Android devices will work (If they're not designed for Android, they'll show "Charging (USB)" in the battery monitor, and will only charge at 500mA). The brand isn't really important, as long as it's a reputable brand. (...and before you ask, yes a 2A charger will work fine too, but will heat your battery more than a 1A charger.)
jt3 said:
Technically, yes, it'd be better for your battery, but realistically, you'll never notice, since you'll probably get a new phone long before battery life becomes an issue.
However, to answer your question, any 1A charger designed for Android devices will work (If they're not designed for Android, they'll show "Charging (USB)" in the battery monitor, and will only charge at 500mA). The brand isn't really important, as long as it's a reputable brand. (...and before you ask, yes a 2A charger will work fine too, but will heat your battery more than a 1A charger.)
Click to expand...
Click to collapse
Ok thanks...I guess ill continue to use my samsung 1a charger since it works. And I know that I wont have this phone for the whole 2 years, but if I charge the phone every night anyway why take the risk of damaging the battery at all with a stronger charger when I dont need it right?
Anyway thanks for the advice and ill keep using my samsung charger.
Thanks
cleex024 said:
Ok thanks...I guess ill continue to use my samsung 1a charger since it works. And I know that I wont have this phone for the whole 2 years, but if I charge the phone every night anyway why take the risk of damaging the battery at all with a stronger charger when I dont need it right?
Anyway thanks for the advice and ill keep using my samsung charger.
Thanks
Click to expand...
Click to collapse
I put my phone on a wireless charger all night and it gets a little warm but nothing to lose sleep over.
dalegg said:
I put my phone on a wireless charger all night and it gets a little warm but nothing to lose sleep over.
Click to expand...
Click to collapse
Which wireless charger are you using?
The quick charge technology is designed to quickly charge your phone without reducing charging cycle performance
So yesterday I bought a 2.0 charger off of amazon with the choe brand name. According to the ad it works with nearly every android phone, including the HTC one m8. For the past year I have been using a charger from my last phone which was a crappy flip phone and thought nothing of it, but I am wondering does this charger truly work?? According to app "Ampere" it is much slower. Also, I've read reports about phones heating up and that's what mine did last night, is that normal? How long should it take for me to full charge my HTC one m8?
It will heat up, that is normal. It'll use most of its 2.4A between 20 and 70% and then slow down. Your total charge time shouldn't take more than 1 hour, and make sure you're using the supplied cable.
Thanks for the response! So if it doesn't charge 1 to 100 in 1 hour than is something wrong? Also will a charger like this have any effect on how long my battery lasts? My last charger for whatever reason was for my last flip phone believe it or not, I never bought a new one.
Black_magic100 said:
Thanks for the response! So if it doesn't charge 1 to 100 in 1 hour than is something wrong? Also will a charger like this have any effect on how long my battery lasts? My last charger for whatever reason was for my last flip phone believe it or not, I never bought a new one.
Click to expand...
Click to collapse
no I wouldn't say that.
my 2.0 QC will get it done in about 1-2 hours compared to the 3-5 or so it took with stock charger.
0-100% will take more than an hour. I've timed mine a few times from 0-100%, not using the phone at all and in airplane mode waking it up every 5 minutes to check percentage, volts, and charge rate using Gsam batt monitor.
Comparing the two chargers (OEM HTC QC 2.0, and original HTC charger- which I believe is QC 1.0) the QC 2.0 is definitely faster. Even though there is nothing on the phone telling you it is using the higher wattage charging mode, it is. So, 0 to 100% using HTC's QC2, usually takes around 1:20 minutes if I remember right. As in the other post, it starts out rather slow to around 20%, then kicks in to high gear until around 80%, then slows back down all the way to 100% so as to not overcharge the battery and harm it. It really is amazing the speed that it charges at. It does get rather warm, which is normal, but shouldn't hurt the phone.
Now, completely draining and recharging these batteries frequently is not good for them and will decrease the useful life sooner. Keeping it somewhere around 80 % is ideal but realistically not practical and the manufacturers know that. That's why they build in overcharge circuitry protection so leaving the charger on all the time "shouldn't" harm the battery. Draining it down to zero and doing a full recharge cycle on it frequently WILL decrease the lifespan. The batterie's useful life is basically determined by a finite number of charge cycles.
There's tons of info on charging and batteries out there if you are looking for more reading too.
Anyone heard of the brand Auzen? It's popping up alot on aliexpress and around asian market. Not too much reviews yet on that brand.
don't play with quick chargers .I bloated my m8 batt once trying it .it charge at 2.4a .our device max is 1.5a.
If you insist using it then don't full charge with it n monitor closely .
That's impressive, I use a QC2.0 car charger, I use a variety of wall chargers that run from 1.0A to 2.3A at 5V.
So far, my battery is still very happy.
Sounds like you got a cheap knock off charger or your battery/charging circuitry was damaged/faulty and/or your ROM/firmware weren't proper, for that kind of damage to occur.
I don't think Ampere works. I once did a test (last month) and had 6 different USB cables and I wanted to see which was the best, every time I used one I got a different reading, from 200 up to 1600. Even using my Anker Quick Charge 2.0 I only got 400 so it stated.
I have been using Aukey QuickCharge 2.0 and gives pretty decent charge times.
I have a QUICK Changer 2.0. works great.. have some tips...
You know there is some colors on cable conectors ends you have to choose the right one..
- If the cable is not a quality one can result to slow charging.
Black ----- 1.0. most in stock phones
White------ 2.0. the right for fast charging...
The time on reaching 100% on battery,well Quickly charger 2.0 will reach 80% on your battery fast and it will change the next 20% slower...
There is some app in playstore can help can see the amperage live in mA..
Connect your charger to get the battery charging current or disconnect it and get the negative discharging current... and you can see your battery charging current mA is constantly changing because even on charging phone still using current (negative discharging current) and this is always changing.
On my case I see higher mA reading only under really low battery...
I have a problem with my m8 and aukey 2.0 quick charger....
After firmware update to 6.12.xxx.xxx mm , the app ampere tell me max 1600ma before update its tell 2000ma .. Its a bug or a feature of the new firmware base...??? I have cyanogenmod 13
Im using the same aukey 2.0 quick charger. Works perfect.
M8 is 1.5a max .if you use 2.0a logically you're overcharging it. Just wait for it to get bloat n replace the whole bat. worth it ?
Hi, i just wanted to say something. After many bad chargers i bought, i found the Nillkin chargers (2Amps)and Nillkin cables (2.1Amp) the best and best quality. I am always testing with good Usb voltage tester and it can charge up to 1.5 amps max on M8 and on LG G3 1.8 Amps. As long as the charger is 5.0V, amps can variate and it doesnt hurt your battery, it just charges slower or faster. In my case its charging 1% per minute on both phones. It doesn't matter if the cable is black, white, green... cables must be thick, around 18AWG that support high ampers which mean faster charging. thin cables are sh!#. And for car i also found the Scosche dual charger great for every device with Nillkin 30cm cables and Kenu airframe holder.
You can use 2.4A chargers on M8 without problem as it will only receive 1.5amps.
GL
I'm using Anker PowerPort 1+. It's very good and you can use for iPhone iPad & almost Android devices.
I bought it here: http://www.amazon.com/Anker-Charger-PowerPort-Samsung-Wireless/dp/B014F3D8FQ
henryrk said:
M8 is 1.5a max .if you use 2.0a logically you're overcharging it.
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Click to collapse
That logic is incorrect. The phone will only draw as many amps as its rated for (1.5 amps) regardless of what the charger is rated to supply. Think of the charger amp rating as the "maximum it can supply" instead of "what it will always supply".
henryrk said:
M8 is 1.5a max .if you use 2.0a logically you're overcharging it. Just wait for it to get bloat n replace the whole bat. worth it ?
Click to expand...
Click to collapse
Ampere shows max charge rate for me at 2000ma. Where do you get the idea it will overcharge?