For questions specifically about issues with battery charging or power supply.

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2
votes
2answers
7k views

Device Steadily Discharging While Plugged Into AC?

Question: My device (Galaxy Note 2 running the stable CyanogenMod release) is charging extremely slowly and discharges while it's plugged into AC power. What happened to cause this and what's ...
1
vote
5answers
11k views

Are 'Apple/Android Specific' USB charging ports really different?

I have a portable battery with two USB ports. One is labelled Android and one is labelled Apple. Apparently each has charging circuits optimized for that particular type of device. This sounds ...
0
votes
1answer
121 views

Samsung Galaxy GT-P7510 won't charge

I have a Samsung Galaxy Tab GT-P7510/M32 32 GB. I can't get it to charge. I plugged charger in one time and showed the battery was empty and had a yellow triangle with exclamation point point in it. I ...
27
votes
3answers
31k views

How can I avoid the battery charging when connected via USB?

I'm using my Samsung Galaxy S2 for development so I regularly plug it while it's not fully charged, and my phone starts charging over USB. I think this (charging while in use) can affect battery life (...
1
vote
1answer
3k views

Cannot charge Xperia Z3 Compact

I have a 3 week old Sony Xperia Z3 Compact (D5833). However, it suddenly turned off and refused to charge. The phone was at ~10% charge before I plugged it in using the cable and adapter that came ...
-2
votes
1answer
212 views

Which charging cable should I use? Short or long, and why?

I have a 7" Android RCA VoyagerII tablet. The instructions say I must use the very short cord charger that came with it and not even try anything else. Is this true or can I use a regular long ...
2
votes
1answer
78 views

Charging works well with new USB cables only

When trying to charge my android devices (Arc S and Nexus 7 (2013)), I noticed that when using new USB-cables, the charging process is going quite fast, but after some weeks (usually four-five) the ...
1
vote
1answer
136 views

How do I select a non-OEM charger for my device?

My Nexus 5 D821 (2014)'s original charger started failing to charge the phone since last week. There are 1.8A & 1.2A LG OEM chargers available in ebay.com. Is it okay to use the 1.8A charger? or ...
4
votes
4answers
8k views

my battery charge indicator is continually flashing on and off

My battery charge indicator (the screen info saying % full), flashes on/off/on/off, etc. sometimes. I've switched the battery to a spare to see if that helps but it didn't. When it does happen, ...
5
votes
2answers
9k views

Why doesn't my phone charge?

Okay, so I already ordered a new battery, but in the mean time. Why won't my phone charge? I have tried every charger/cable in my house and car (over 10 chargers and around 15 cables). Double ...
5
votes
1answer
8k views

Long term effects of charging Nexus 5 with an other device's charger (fast charging)

A roommate has bought a OnePlus One (OPO) phone. When I tried charging my Nexus 5 with the charger of OPO I found that it charged my Nexus device amazingly fast. I'm talking 3-4 times faster charging ...
2
votes
0answers
64 views

Phone doesn't charge via USB while on

I'm trying to figure out a charging issue with my Nexus 6 (Marshmallow 6.0.1). While I'm in Windows (10) and the phone is on, it won't charge over USB. If I turn off the phone it charges via USB. If ...
0
votes
1answer
114 views

USB Charging notification while charging on AC adapter

I have a MOTO X android phone that while charging with my AC adapter it sometimes says it is charging by USB I don't know what to do Can you explain this
1
vote
1answer
349 views

Xiaomi Redmi 2 Pro Battery Issues

I have a Redmi 2 Pro, and it works fine, except for some issues with the battery. If I charge it to 100% before I disconnect the charger and go to sleep, by the morning it may go down only to 98%, but ...
2
votes
2answers
102 views

Is there any relation between charging rate and discharging rate?

Sometimes when I do not use the original charger but a different one it would take less time to fully charge the device than the original charger would do. But I can feel that discharging rate is ...
2
votes
1answer
77 views

What is a canonical battery test that I can use before and after upgrading the OS version?

I am about to upgrade from Android K to Android L. Right after, I will upgrade from Android L to Android M. In a previous empirical experiment, with a now-demised device, I noticed (or seem to have ...
2
votes
1answer
205 views

HTC Rapid Charge 2.0 overheating battery

Since a few days ago I am charging my HTC One M8 using the HTC Rapid Charge 2.0 charger. It does indeed charge fast, but I have noticed that the battery gets really hot. After installing the DU ...
7
votes
1answer
208 views

Do modern Android devices regulate AC mains power similar to a laptop?

There have been a lot of discussions about lithium-ion battery life across the internet. However, within these discussions I have found contradictory details about the way power is regulated between ...
1
vote
2answers
352 views

Will plugging the Samsung fast charger into a outlet rated 10W/2.1AMP slow down the charge rate?

The S6 comes with a fast wall charger, but how does it work exactly? I want to plug it into a “one outlet Belkin” with surge protection, that is 2.1AMP for the ome USB port and 10W for the single AC ...
0
votes
0answers
35 views

Can a charger of volts greater than a phone's battery harm that phone during charging? [duplicate]

I have an HTC Desire C cell phone with a battery of 3.7 volts. Would charging the phone with 5 volts charger harm the battery?
1
vote
0answers
346 views

Samsung Galaxy Star Shows Charging paused Due to Battery temperature too low

My phone stops charging because the battery temperature is too low, somebody told me to change the battery. How can I solve this problem?
5
votes
0answers
2k views

Sony Xperia Z3 flickering between charging and discharging

When I plug my phone in it often has problems charging. Both the green led light and the charging icon will flicker on and off every half a second. This seems to happen at different times during ...
5
votes
4answers
754 views

How to prevent brightness from going to full when the battery low popup appears?

Whenever the "battery low" popup appears in my tablet, the brightness goes to full. This makes no sense because the brightness should be decreased to the minimum instead of going to the maximum, as ...
1
vote
2answers
76 views

How to prevent brightness when battery reaches high?

I leave my phone (Samsung Galaxy 4 GT-I9506, Android 5.0.1 lollipop) charging on my table when going to sleep. It reaches full after some hours often. It is so annoying when the display becomes bright ...
4
votes
0answers
464 views

500 charge limit on wireless charger for Nexus 4 / 5 (QI)

I recently bought a QI compatible charger for my Nexus 5. On the box it states, that the "wireless charges up to 500 times". I don't understand why the charger is only able to charge my phone 500 ...
30
votes
9answers
77k views

Why is charging from computer using USB slower than using an outlet?

And what is roughly the ratio of the charging speed in USB vs charger? My phone is Samsung Galaxy S, if that matters.
4
votes
3answers
5k views

Increasing my phone's charging rate while tethered

I have a Samsung Galaxy S3 and a laptop with 2 USB 3 ports. When tethered to my laptop (to provide Internet access via GSM/HSPA data), the phone charges very slowly, especially if I am using it for ...
2
votes
3answers
195 views

Charge and USB keyboard through 1 USB port

I have a Samsung Tab E that only has one USB port. Can I charge the tablet and have a USB keyboard attached at the same time? I've tried a 3-way cable ( link to Amazon ) but it supplies power to the ...
0
votes
1answer
70 views

is fully charging new phones before turning it on a must? [closed]

I just got my Samsung note 5 shipped to my office. And I am wondering if I should charge it full before I turned it on
1
vote
1answer
186 views

Device uses non-USB charger. Can I still charge it through the USB port?

I got a Polaroid L9H tablet for Christmas, which includes a carrying case with built-in USB keyboard. I assume that it is for this reason that the tablet was designed with a barrel connector for its ...
0
votes
0answers
22 views

X10 Mini Pro always boots when being charged offline

I rooted my X10 Mini Pro and installed Clockwork mode recovery. Now every time I try to charge it offline, phone boots into home (and phone works fine from there on). Is this normal? I no longer ...
3
votes
2answers
474 views

Does a phone's battery charge when in download mode?

I bricked my SM-J500G when trying to root the phone. Now I'm trying to install the stock ROM. The problem is that my phone's battery is low, and I have no way to charge it in another phone. Can I put ...
2
votes
3answers
19k views

Will playing a game in a Android phone while charging damage or cause harm to the battery or the phone?

Will the following situation damage or cause any harm to the battery or/and the phone: The phone is being charging (regardless it is using the electrical outlet or via USB) and .. You are playing a ...
3
votes
2answers
132 views

Computing when on charger - long term effects on battery life

Donating your computational power for scientific projects is, in some cases, available for Android. One of them, the World Community Grid, states that "Using the application will not significantly ...
1
vote
2answers
4k views

Samsung S3Mini - Charge/Discharge problems

I've got a strange problem on my S3Mini; two weeks ago has started to behave strangely, emitting the sound of charge/discharge while not connected to the AC adapter and setting the battery icon in the ...
0
votes
0answers
77 views

Samsung Galaxy Note 10.1 charging paused, battery temperature low

I have a new Samsung Galaxy Note 10.1. I recently bought it online. It was working fine, but now the tablet is not charging and keeps giving the error 'battery temperature low'. I tried charging it by ...
0
votes
3answers
9k views

Samsung S duos - showing charging symbol but percentage not increasing

I have samsung s duos. Suddently one day, when i was charging .. though the indicator shows charging, the battery level keep going down. I restarted mobile... still same issue. Then i tried with ...
3
votes
0answers
65 views

How to boot my Samsung Galaxy S4 mini when wall charger is plugged

I am Developing an Android Application, here i want my phone to start booting automatically when the phone is plugged into any power outlet without hitting any power button.I found many solutions and ...
0
votes
1answer
108 views

Android phone is turned off at 52% battery

I have got a Samsung Galaxy Grand Neo Plus with Android 4.4.4. When the phone reaches the 52%, it turns off and I can't turn on it again because the battery is at 0%! I think this could help: When I ...
2
votes
0answers
517 views

Samsung Galaxy S4: After 5.0.1 update phone only charges when switched-off

While my phone was updating it was plugged in by the wall and charging. After the upgrade the battery was drained by the evening, and when I plugged it in to charge again, nothing happened. I ...
0
votes
1answer
79 views

Nexus 7 (wifi) 2012 won't charge past 11%

So I turned on my nexus after maybe a year of inactivity. It was just in my cupboard, mostly because I installed a unstable mod and just wouldn't work. But I was able to fix it. And now it won't go ...
1
vote
1answer
205 views

How can I force my device to pull more watts from charger?

I have three devices, Nobis nb7022 s, droid mini, asus memo pad 7 (me170cx). I am using a charger that has a rated out put of 2000ma. The nobis draws 8 to 10 watts from the wall outlet. the droid mini ...
4
votes
1answer
263 views

Can a cheap cable prevent AC charging from working?

A while ago, I had my phone repaired (the USB socket was worn out) and had to replace the USB cable as well. Since then I haven't been able to quickly charge my phone in AC mode. Previously it worked ...
-1
votes
1answer
234 views

I have moto g 1st gen charging very slow

I have Moto G 1st Gen now the problem is charging is very slow it takes about 3 2 and half hours to full charge what to do now? should i buy new battery..??
1
vote
1answer
197 views

Is it possible for a device to consume more power than it is wall-charging?

I have a 2012 Nexus 7 running KitKat. I have a hunch that it is not charging properly. Specifically, if the system is on and the device is plugged into the USB wall-charger, the battery indicator says ...
2
votes
2answers
10k views

Is it safe to use phone while charging with portable powerbank?

I understand using phone while it is being charged by a normal charger is not advised. What about using phone while it is being charged by a portable charger (powerbank)? I own a HTC one and i was ...
0
votes
1answer
195 views

Moto G 2 (2014) Not Charging!

My phone is a Moto G (2014) XT1068. It has recently stopped charging for some reason. This morning it was charging and tonight, it decided that it would be a prick and not charge. Anyhow I tried ...
4
votes
1answer
127 views

Battery level always 42%

I purchased a second hand nexus 5 to find out that the battery indicator is always showing 42% and never updates, regardless of the actual battery charge level. I tried replacing the battery with ...
0
votes
1answer
4k views

LG Won't Charge

My LG was at 1% battery yesterday so I let it charge for an hour or so but when I came back I noticed that it wouldn't even turn on without turning right back off. It would only turn on to show a "0% ...
21
votes
4answers
26k views

How to make screen stay turned off when plugging charger?

When I plug charger into my phone with screen off, it always turns the screen back on. This is slightly annoying at night. Is it possible to configure android so that the screen stays off and charging ...