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

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4
votes
3answers
345 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 ...
0
votes
2answers
1k 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 ...
1
vote
2answers
74 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 ...
0
votes
1answer
58 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
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 ...
2
votes
3answers
167 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 ...
1
vote
1answer
161 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 ...
3
votes
2answers
394 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 ...
3
votes
0answers
62 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
0answers
75 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 ...
7
votes
1answer
460 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 ...
0
votes
1answer
107 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 ...
-1
votes
1answer
196 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

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
123 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
75 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 ...
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 ...
5
votes
2answers
265 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 ...
0
votes
1answer
163 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 ...
1
vote
1answer
81 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 ...
-2
votes
1answer
198 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 ...
1
vote
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 ...
0
votes
0answers
179 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 ...
2
votes
1answer
582 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
410 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) ...
2
votes
4answers
574 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 ...
0
votes
2answers
110 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
0answers
61 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, ...
2
votes
1answer
76 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 ...
1
vote
1answer
127 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
323 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 ...
1
vote
1answer
110 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 ...
2
votes
2answers
99 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 ...
0
votes
0answers
525 views

Is my HTC One M8 battery broken?

Hi I have my HTC One M8 which acts so weird, so what happen now when I plugged it a power outlet while the phone is turned on it doesn't charge, when I pull the micro usb cable and plug it again to ...
0
votes
1answer
61 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
103 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 ...
-1
votes
1answer
286 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 ...
0
votes
0answers
48 views

Tablet report as charging with the charger unplugged

I'm having problems charging my Samsung Tab 2 device. It is reporting as charging after I unplug the cable, and when charging, it is drawing a small current from the charger. I've measured and it gets ...
1
vote
0answers
419 views

How to care for a lithium-ion battery so that it will remain useful for as many years as possible [closed]

My question I own an Android smartphone with a lithium-ion rechargeable battery. I want the battery to remain at least somewhat useful as long as possible — even for five or ten years, if such ...
0
votes
0answers
228 views

Charging rate in Zenfone 5 is 40-90mA while Moto G shows 480-500mA with same charger and USB cable. What's the issue with former?

I have a T00J Zenfone 5, and last Sunday its charger broke. As I tend to use it in lots of places, I guess the stress on the cord was a little more than it could handle. I plugged it in on USB, and ...
5
votes
4answers
571 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
votes
2answers
48 views

what can be the problem behind if my android phone charges just 2-3% in 1 hour? [closed]

This happens with me so many times. I want my answer please tell me. IOt will be a great help for me. I believe in stack exchange !!
0
votes
0answers
118 views

HTC One M8 will not charge

My HTC One M8 was run over by a bus, literally a bus. I brought it for repair and the guys replaced the screen and it powered up fine. However, the battery would not charge. The phone repair guys ...
1
vote
2answers
1k views

Xperia SP looks like it's charging, but it doesn't charge

My phone is Xperia SP, it's on CM 12.1, unofficial build (because the official one is buggy due to bad kernel). It has been bought second-hand, so I'm not sure about its history (the phone was in a ...
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 ...
0
votes
0answers
28 views

Android- Sony Z not charging

have a sony With two years. For an update to Android 5.0 I have a problem with charging my phone when it is switched off and the battery totally 0 % would normally loads, but when the phone is ...
0
votes
0answers
331 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 ...
2
votes
1answer
167 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 ...
0
votes
0answers
202 views

Samsung Galaxy Note 2 doesn't charge when connected to charger but shows USB connector notification

I'm using Samsung Galaxy Note 2. I rooted this phone and flashed a custom ROM. After three months I started facing an issue that whenever I connect my charger the device does not charge, and shows ...
1
vote
1answer
200 views

Why is the screen acting weird while charging?

I noticed that when I charge my phone with a cheap charger that I bought from Ebay, the screen acts strange: It suddenly can't position my taps correctly and It detects swipes as taps. After a ...