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

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3
votes
2answers
291 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
131 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
70 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
8k 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
56 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
103 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
476 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
70 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
182 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
145 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
185 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
136 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
122 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
3k 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% ...
19
votes
4answers
24k 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 ...
1
vote
1answer
76 views

How is an “average use” defined in terms of battery life

It is common to see better battery performance being touted as a selling point, when phones are announced and when they but the market. And the claim typically goes like "lasts xx hours on average ...
0
votes
0answers
172 views

Bought a new Battery yet Galaxy Note 4 still won't charge still says “battery temperature” too hot. When it is not

Bought a new battery and yet my Galaxy Note 4 still won't charge. It still says "battery temperature" is too hot when it is in fact at room temperature. A few weeks ago my phone stopped charging ...
0
votes
1answer
2k views

How does charging battery in normal, speed and trickle affect battery life?

Battery doctor uses different stages of charging: speed; continuous and trickle (keep charging when the battery is full for some time) does this really extend battery life? and can an app change ...
2
votes
1answer
419 views

Samsung Galaxy Tab Pro 10 discharging even when connected

My Samsung Galaxy Tab Pro 10 (SM-T520) will discharge when connected. While the battery icon shows that it's charging, the tablet will still discharge, albeit more slowly than when not connected. This ...
1
vote
1answer
320 views

Slow charging, random wake-up and dead USB connections

My phone, Asus Zenfone 5 (A501CG), takes too much of time to charge (6-7 hours). Also, the screen wakes up randomly every 5 seconds (approx.). The phone doesn't connect to a PC (it's not recognized) ...
1
vote
4answers
2k views

Quick drain of battery in new phone huawei g play mini?

Here is a screenshot of my battery drain. Is it normal , or should I go to service center ? My previous phone had much less sloppier curve . When I bought the phone I charged it upto 100% and then ...
2
votes
4answers
403 views

Why does my phone charge more quickly at some outlets than at others (with the same charger) [closed]

My cell phone seems to charge slowly, especially at my home (I've tried different outlets). But recently I was in a coffee bar, and it seemed to charge a lot - a lot! - faster. I was using the same ...
3
votes
0answers
519 views

My phone crashes while charging

My phone sometimes shuts down without a reason or warning. It often happens while it's charging. I'm not positive charging is an absolute requirement for this to happen, but I only remember it ...
1
vote
0answers
66 views

Increase the efficiency of charging

Is there a way of increasing the efficiency of charging an android device without switching the device off? I am not talking about using different cables, chargers, hardware etc, I'm interested in ...
7
votes
4answers
12k views

Nexus 4 problems when charging

My Nexus 4 is not charging when plugged into wall but it charges when connected to PC USB. When plugged into wall nothing happens, the battery icon shows nothing. This problem appears and disappears ...
0
votes
2answers
108 views

Phone is discharging extremely fast.. How to stop this?

I'm a moto gen 2 user, my phone is discharging extremely fast.. Just switches off overnight even with >50% charge .. But I'm able to charge properly.. Takes long, but its fine.. Tried the factory ...
0
votes
1answer
55 views

Is there a way to determine the charging current available?

I have a Moto X that has recently stopped charging while in its car dock, even though it indicates that it's charging. I will diagnose the problem by eliminating the USB cable, the dock, and the ...
0
votes
3answers
4k views

Asus ME302C tablet charging forever and doesn't start

My Asus ME302C tablet was giving charging problem lately and is completely dead now and not starting up. Around 5 days back, its charging got stuck at 55% and it never went ahead even after charging ...
5
votes
3answers
247 views

is there a reliable source of charging current?

I am testing several chargers and cables to find the optimal combinations for a fast charge. I was so far using CurrentWidget and was getting just a few values, (independently of how much the battery ...
5
votes
2answers
399 views

Does leaving a lithium-ion battery uncharged for 3-6 months at a time hurt battery life?

Does leaving a lithium-ion battery uncharged for 3-6 months at a time hurt battery life? I have seen plenty of questions and articles about the dangers of leaving your cellphone in the charger, but I ...
1
vote
2answers
598 views

How do I override charging current on Huawei Honor 6?

On SonyEriccson Xperia X10i I do this: echo 1000 > /sys/devices/platform/msm_hsusb/gadget/chg_current This allows faster charging from computer's USB port (if I know it can source more than ...
1
vote
1answer
239 views

How do I set battery charge min-max range to make it degrade with time less?

As far as I know, LiIon batteries should be kept in about 40%-80% range in order to degrade more slowly. On my laptop I use the following commands to make it change battery conditionally, only when ...
11
votes
6answers
35k views

Automatically power on Android when the charger is connected

Is it possible to automatically power on the device once the charger is connected given that the device is initially turned off?
0
votes
0answers
58 views

Samsung Galaxy S2 phone keeps periodically detecting that charger is plugged in even when it's not

Samsung Galaxy S-2 phone keeps periodically detecting that the charger has been plugged in, apparently randomly I have noticed, however, that if I keep using the UI of the phone it doesn't happen, ...
1
vote
1answer
104 views

Usb Speaker with External Power supply? S ll

I'm using a 2x3W yenkee usb speaker with my phone through an usb otg cable and it's working fine, but when I turn the volume up the speaker turns off.I assume it's because of the high power ...
0
votes
1answer
411 views

Phone wont boot

Yesterday I got an Acer Liquid Z410. After installing some apps and checking out the phone, I charged my phone fully. Then I was trying to acces my phone again but it was off. So I tried to access it ...
4
votes
1answer
275 views

Does my Android phone uses battery or outlet power to operate while being charged?

I am curious about knowing which power source does my android uses up, while it is being charged while switched on.. I know i can test it by keeping it in charging and pulling the battery.. but i am ...
-1
votes
1answer
91 views

Fast charging a Samsung S4/S5 with an Apple charger

Does anyone know if it's possible to achieve fast charging (1300mA+) a S4/S5/S6 with an iPhone (5/6) charger? The data pins have a circuit, but I believe Apple uses a different voltage divider to ...
10
votes
5answers
4k views

How can I tell at what rate my battery is charging?

I've been told that different charging sources charge my phone at different rates, and have been told that some car chargers act at a normal USB rate instead of a rate closer to an AC outlet. When I ...
1
vote
1answer
115 views

Can I charge my android cell phone with another usb chager?

I have an Android phone and a Tablet. Sometimes, when traveling, I just want to take one of the chargers. Is this ok? Can I just use any usb based charger in any android phone or tablet or can there ...
1
vote
0answers
301 views

Phone's battery is draining unusually fast even when not in use

The hardware I'm using: OnePlus One, bought late december 2014 Stock Cyanogenmod, version 12.1 - YOG4PAS1N0 (= Android 5.1.1) no apps to improve battery life in any way Basically, the battery is ...
12
votes
6answers
5k views

Is it OK to swap batteries while phone is connected to wall charger?

It takes a few minutes to shut down and restart the phone, it would sometimes be handy to be able to swap batteries without shutting down (i.e. swap in a fully charged battery before going out). ...
0
votes
1answer
1k views

HTC Desire C screen on while charging

My new HTC Desire C screen does not turn off while charging. It is running ICS (Android version 4.0.3, HTC Sense version 4.0). I have went into Settings > Developer Tools > Stay Awake (OFF). It ...
5
votes
1answer
626 views

Don't charge to 100% when always-on wall-plugged-in

I want to use a Google Nexus phone for an always-on wall-plugged-in WiFi tethering access station. It occurred to me that if I just do it like this, then I'm risking ruining the battery within a ...
0
votes
1answer
60 views

Why does my phone charges fast when WiFi is on?

My phone is Lenovo A6000+ Original charger and Stock OS. Edit: it is a two months old phone with no other complaints.
-1
votes
1answer
248 views

I can't plug in my charger to my Samsung Galaxy tab 3 I think something is broken but i don't know how it happened

I really need help because I have no money to buy a new one. I was charging my tablet before a party and when I had to leave I unplugged it came home and it wouldn't plug in and I have tried all kinds ...