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

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1
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0answers
35 views

Charging Behaviour Changed After Using Car Charger

On a recent road trip, I used a car charger to re-charge the battery on my Nexus 5 phone. Ever since, I have noticed a significant increase in the time required to charge the battery, even when using ...
0
votes
0answers
38 views

Phone won't charge

My 3 week old Galaxy S6 won't charge. When I plug it in it will show the charging sign/logo but it won't charge. Each time I turn it on it says it's only on 0% and even when connected and a "being ...
0
votes
1answer
97 views

Can I charge Galaxy Tab S2 while using MHL adapter?

I'm looking at an MHL adapter provided by Samsung. I have a Galaxy Tab S2 and wonder if this adapter would allow the device to charge up at the same time as mirroring the screen to my TV. I already ...
3
votes
1answer
353 views

How to determine maximum capacity of a battery in mAh? - received fake battery

Is it an increasable value ? I think its not. I just bought an extended 3890 mAh battery for my Galaxy S4 GT I9500. The original Samsung battery is 2600 mAh. This is my second purchase from a ...
3
votes
1answer
230 views

Where are the battery capacity files located?

Background My current device Huawei Honor 6 comes with a 3100 mAh battery. I was therefore surprised to see 3C Toolbox Pro report the capacity as 4000 mAh. I mailed the developer of the app and his ...
0
votes
1answer
126 views

Galaxy S6 won't charge after drain to 0-1%, cannot boot

After letting my Galaxy S6 drain more than usual, I connected it to the fast charger a bit after it hit 1%, and left it for the night while still powered on. Next morning the phone was off. Powering ...
0
votes
1answer
45 views

Interchanging battery with a higher capacity battery

My Redmi 1s has a battery capacity 2050mAh (BM41). And the upgrade of the phone is Redmi 2 with capacity 2200mAh(BM44). Can I use this battery if it fits in my device? Will it creates any software ...
1
vote
1answer
38 views

Charging during filetransfer

I have recently upgraded my phone from Android 4.3 to 6.0 in my Sony Xperia M. I'm pretty confused by the new behavior. Whenever I plug the phone to the USB cable, it is detected in the computer as ...
1
vote
0answers
56 views

Why does my OnePlus One draw 60% more current if I turn off the screen AFTER plugging it in?

It's pretty simple: If I turn off the phone's screen and then connect the wall charger, the power supply draws ~6W from the wall, and this doesn't change if I keep waiting. If I connect the wall ...
-2
votes
1answer
53 views

Does it hurt battery life to not fully charge and disconnect?

Dears, I think the question is quite clear from the title: if I charge my device and let it charge not fully but say, 60% and disconnect, does that hurt battery life? If so, what are the ranges you ...
1
vote
2answers
93 views

What to do after replacing the phone's battery?

I have a Nexus 5 (1.5yo; I know, it's old but still worthy!) and the boy was heavily suffering from short battery discharges. I'm a phone heavy user so I figured out I had depleted the battery's life, ...
0
votes
2answers
30 views

My tablet is not turning on

I have a tablet not two years old, a few days ago it was left in a hot truck for about two days. Now it won't go past "fast boot menu". I have tried everything, I even tried charging it and the ...
-2
votes
1answer
63 views

Lost Android's OS

I bought a Moto G (1st gen). It was upgrading and had around 1% battery and was charging, but simultaneously I unplugged the charger and the mobile turned off and now it's not turning on. It's not ...
3
votes
2answers
63 views

How can I tell if I need to replace my battery?

I have a refurbished Galaxy S3. Sometimes it charges to 100% while powered off, but reports 51% as soon as I start it up. Lately, it goes down to 50% or lower even right after charging. I haven't ...
0
votes
0answers
274 views

HP Slate 7 will not charge

My sister got a quite new HP Slate 7 running Android 4.1.2, but the tablet won't charge. When I charge it while it's running, the charging is flickering between charging and not charging. If I charge ...
2
votes
3answers
637 views

Does using USB 2.0 or 3.0 cables affect charging speed with same adapter?

I have Samsung Galaxy Note 3. If I charge my phone using the same adapter but with different cables, does that affect the charging speed with the USB 2.0 cable or 3.0 cable, supposing the 2.0 cable is ...
0
votes
1answer
68 views

Car charging at below 500mA

I've plugged the AC charger for my Samsung Galaxy S4 into an inverter connected to my car's DC outlet. The inverter is able to power my laptop AC adapter without issues. The S4 charges, but not at ...
0
votes
1answer
89 views

Charge older Samsung phone (with Quick Charge 1.0 technology) at full rate

I own a Samsung Galaxy S Relay, which is an Android phone a few years old. It's sort of similar to the Samsung Galaxy S III, but it also includes a slide-out physical keyboard. Like the Galaxy S III, ...
0
votes
4answers
489 views

Turning off “charging” sound effect on Xperia Z3 Compact

Is it possible to turn off the sound when the charger is connected? I have got the answer from Sony Support that this is a "feature".
1
vote
1answer
56 views

WiFi only working while charging the phone

I am being experiencing this very strange issue in the last couple days. I have a Samsung Galaxy S3 Mini with an (unofficial) build of Cyanogenmod 11. Is has been working fine for the last year with ...
1
vote
1answer
213 views

Powering Samsung J7 using an external DC power supply

I would like to turn on Samsung J7 using an external power supply. The problem is that it uses 4 pin (+,*,-,*) to connect to its battery. The first pin is the positive and the third one is the ...
1
vote
2answers
6k views

My Galaxy Tab 3 will only charge from the wall adapter from Samsung [duplicate]

I'm going on holiday soon and we planned to take a USB hub to charge all of our devices rather than take several wall adapters, however when I checked that my 7" Samsung Galaxy Tab 3 would charge, I ...
2
votes
3answers
805 views

Get the charging rate without external hardware (e.g. multimeter.)

Android.SE user intuited observes: I've noticed that my S4 doesn't always charge at its maximum rate of charge, even when it seemingly should. For example, car DC adapters that claim to provide up ...
23
votes
7answers
3k views

Is power consumed from battery to run the phone when charging?

I want to download torrents while keeping the device plugged to charge. My device is made by Samsung. Is the power consumed from charger, or battery, to power the device when charging? Will my ...
4
votes
2answers
444 views

My phone doesn't always charge at full speed, even with certain 2-amp chargers. What are the necessary conditions for it to charge at full speed?

I've noticed that my Samsung Galaxy S4 doesn't always charge at its maximum rate of charge, even when it seemingly should. For example, car DC adapters that claim to provide up to 2.0A current only ...
3
votes
1answer
569 views

USB charger produces high-pitched noise while the battery is full

I have Nexus 5 and I recently bought the European version of the PowerCube, which combines three power outlets with two USB chargers. I noticed that as soon as my smartphone's battery is full, it ...
5
votes
3answers
23k views

Samsung Galaxy S5 turns on when fully charged and never turns off

I just 'upgraded' from the Samsung Galaxy S4 to the S5. Both use similar Android 4.4.2 Touchwiz software, but the new one has some odd behavior. I set smart screen sleep (or timeout, how it's called) ...
5
votes
2answers
333 views

Forcing higher USB current

The big problem: Like a lot of people, we are finding that our tablet does not maintain charge when connected to USB (PC or other device, not AC jack, we need data and charging simultaneously). What ...
2
votes
1answer
869 views

How to connect both a monitor and a keyboard to a LG G3?

Using USB-on-the-go I can connect a keyboard to an LG G3 and using a slimport adapter I should be able to connect a monitor. Is there a way to connect both at the same time? Or even better, connect ...
0
votes
2answers
2k views

How to connect Samsung J7 via USB but disable charging?

I would like to know if is it possible to connect my smartphone to a pc via USB without charging it? It would be very useful to be able to disable charging (but still allow USB tethering, ADB ...
0
votes
1answer
4k views

MOTO E battery drops suddenly to 0%

My moto E phone is not even a month old and already i'm having a HUGE problem with it. I charge my phone to full battery, sometimes during a whole afternoon or night. Then in the morning or at 100% i ...
0
votes
2answers
197 views

Can't charge/power on Nook HD+

The device won't power on. The screen and status light show no indication of activity when pressing or holding the power button (or any button / pairwise combination of buttons for that matter). The ...
11
votes
2answers
20k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, Is there a downside to using it?
31
votes
3answers
8k views

Android phone “charging slowly”: How to make it faster

When I put my Android device to charge, the lock screen says "Charging slowly": Is it a particular software setting that tells Android to charge slowly? How to make Android charge fast?
7
votes
1answer
601 views

Battery Stats Are Vastly Incorrect

After updating to 6.0.1 (MMB29K) from 6.0.0 (MRA58R) I have come to face a very odd and never seen before issue. My battery stats are wildly wrong. My stats show 4k% or higher and no battery stat ...
4
votes
3answers
446 views

What is the standard voltage and current levels for an android battery?

I am using Micromax Canvas Nitro A310; recently, I bought a new USB cable and it seems its not doing the job as required. My phone is not getting charged as it was before. Either it takes too long ...
1
vote
1answer
2k views

Nexus 7: micro usb port broken

I have a 2012 nexus 7, its a beast of a device. But unfortunately the usb port of the device is broken. Is there any way I can charge the batteries my beloved nexus? I have opened it up, and removed ...
0
votes
1answer
257 views

s6 won't fast charge or connect to pc

so i have an at&t s6. suddenly stopped fast charging. and when i say "stopped fast charging," i mean charges slower than molasses now. takes literally about 4hrs to charge from 80% to 100%. ...
0
votes
1answer
90 views

Entering recovery mode when plugging powered off tablet to charger

I installed Philz Touch 6.59.0 (ClockworkMod 6.0.5.1) in my Samsung Galaxy Tab 4 7" Wifi (SM-T230) and modified the /system/bin/lpm (also called playlpm in other devices) to reboot the device as soon ...
0
votes
1answer
500 views

How to charge a newly bought Nexus 5X(lithium polymer)? [duplicate]

I just bought a new Nexus 5X, how should I first charge it? (It's a lithium polymer battery) I plugged it in the charger and the phone turned on. Phone almost had a full charge already though (out of ...
0
votes
1answer
100 views

Will charging a phone with a different USB *cable* affect the battery life?

I recently realized that I've been using the wrong USB cable to charge my Moto X Play(2015) for probably a couple weeks. The phone is specifically designed to charge very quickly with its' default ...
15
votes
5answers
3k views

How to choose micro USB cable for my device?

The plug sure looks like any old micro USB plug. Will another cable (like the one from my digital camera) work to charge the battery, or do I need one specifically designed for my phone (incredible)
0
votes
0answers
378 views

One-click rooting app failed to root, and now prevents device from booting and charging

I downloaded a one-click rooting app onto my RCA RCT6773WW2B (RCA 7 Voyager 2). ~25% of the way in, it rebooted the device. The root failed, so the device rebooted again, and the app once again tried ...
4
votes
1answer
141 views

Why do charging rates differ for similar spec USB power adaptors?

I've been experimenting with using USB power adaptors other than the one supplied with the Android tablet and I'm struggling to understand why adaptors of a similar spec to the original are charging ...
2
votes
1answer
18k views

First battery charge on new tablet?

I got yesterday a Galaxy Tab 3 and I want to be sure what's the best way for the first battery charge. On the shop, they told just turn it on, wait for the battery to finish and then charge it to 100% ...
4
votes
3answers
38k views

“Charging paused. Battery temperature too high” while connected to car charger

I have a Galaxy S2 with ICS. When I use it in my car, while it is charging from a car charger, I occasionally get this popup: "Charging paused. Battery temperature too high" Also Waze is running ...
13
votes
3answers
409 views

Prevent complete charging?

I'm looking for a way to prevent my phone from completely charging every time it is connected to my computer. I want to reduce the battery's capacity loss, as it is non-replaceable, and it seems to me ...
0
votes
1answer
64 views

Samsung mobile not getting charge when switch on

I am using SAMSUNG DUOS2. Its not getting charge when its switched on. But there is no problem in charging when switched off. Not charging in both I tried USB as well as wall charger. Android ver : ...
2
votes
1answer
2k views

Nexus 6P charges slowly on stock 6P charger, but 5X charges rapidly

TL;DR: My wife's LG Nexus 5X has no issue charging with her LG charger or my Huawei charger. My Huawei Nexus 6P charges slowly with the Huawei charger but at full speed with the LG charger. Is there ...
11
votes
3answers
13k views

How frequently is it okay to let the battery discharge fully or as low as possible?

I know that atleast once or twice a month a full battery drain and then a 100% charge helps increase the battery life and also gives more accurate battery readings. I was wondering, how frequently is ...