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

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0
votes
2answers
808 views

Why does charging leads to battery losing charge at times

I have a LG Optimus S Android on Gingerbread (The one on the cheaper side with least specs for an Android). I have found that when I use the USB charger connected to my computer, at times instead of ...
2
votes
3answers
11k 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 ...
1
vote
1answer
748 views

Power problems with Droid Incredible 2

My daughter's Droid Incredible 2 is mostly dead. Symptoms: If we can manage to turn it on, it only stays on for a minute or so after it completes all of its start-up tasks. Then turns off and acts ...
0
votes
0answers
72 views

samsung galaxy nexus charging problems

it doesn't charge until battery totally dies and few minutes after that only, charging triggers. Not sure if it an issue with charger or the phone battery.
24
votes
3answers
22k views

Do I have to charge my phone before I use it the first time?

When I got my last phone, a SE k850i, I was recommended to charge it fully once before I even turned it on. Does this apply today as well, for my coming HTC Desire HD? Why was I recommended to do so ...
15
votes
1answer
4k views

Charging over USB can be harmful?

Considering that charging over USB can take around 5 hours (to only 1-2 hours it would take from the wall mounted plug), can it be harmful for the smartphone battery if it's always charged from USB?
8
votes
4answers
39k views

“Charging paused. Voltage too high” on Samsung Galaxy S2 after upgrading to ICS

I am keep on getting this pop-up every 30 sec. I searched on the internet, and most of the solutions are to play with the charging pin. It's also showing it's charging when it's not. My phone thinks ...
2
votes
1answer
808 views

Do you need a special charger for a Nexus 7?

Do you need a special charger for a Nexus 7? I've been trying to use the same charger as I use for my Android phone and it works poorly. If you tilt the tablet upwards it's charging, but otherwise ...
9
votes
3answers
145 views

How can you prevent a Kindle Fire from auto-mounting on a Mac when you plug it in to USB?

I've got a Kindle Fire and I like to plug it in to my Mac to charge up (and also to do some development.) It works fine but it is annoying to have to unmount it every time. Is there any way to ...
0
votes
1answer
962 views

Can a Samsung Galaxy 3 tablet be charged safely using a universal travel charger?

My daughter is in Thailand and she has been using a solar device to charge her Samsung Galaxy3 tablet (7 in.) This method is no longer charging the tablet sufficiently for use. She has a universal ...
18
votes
4answers
12k 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 ...
0
votes
1answer
588 views

How to NOT charge when USB debugging? [duplicate]

I develop "on the road" using a laptop that's not connected to a power source, so when I debug on my android devices, they drain my laptop battery. Unfortunately, the laptop is a MacBook Air so spare ...
1
vote
1answer
52 views

Closely monitoring charging (with bike charger)

I bought a bike charger for my Sony Ericsson Xperia Mini Pro sk17i . When I cycle, the phone says that it is being charged, but apparently it is not because the battery percentage doesn't increase. ...
1
vote
2answers
254 views

How can I pick the correct replacement usb charger for my phone?

My phone has a wall charger with outputs 5vdc and 850mA, which just broke (I saved the USB-microB cable which I've been using to charge from laptops). Unfortunately, OEM chargers of that particular ...
1
vote
0answers
1k views

Galaxy s2 is recognised by computer but doesn't charge

This is an odd one but today I noticed by S2 wasn't charging while plugged in. I tried connecting it to the computer and it came up as a media device as normal but still didn't charge, the battery ...
2
votes
1answer
458 views

Does using an unofficial charger negatively affect overall battery lifetime of a GS4?

According to two employees at the Sprint store, using an unofficial charger for the Galaxy S4 will negatively impact the overall life of the phone's battery (edit: in other words, the battery will ...
2
votes
1answer
517 views

How to train the battery

I am trying to find the way to use my battery in the most efficient manner. I found several suggestions how to achieve the longest life of the battery, and one of these suggestions is quite strange ...
0
votes
3answers
1k views

Sony Ericsson DISCHARGES when plugged in

I have a Sony Ericsson Live With Walkman (WT19i). About a week ago my phone started discharging when plugged in for charging using either a Samsung wall charger or the USB port on my PC. It charged ...
1
vote
2answers
79 views

I'm interested in using a laptop battery as an external battery pack for phone

As title said I'd like to use a laptop battery for my phone as an extender. One usage would be on a plane where my laptop is too bulky to really use but I could pull the battery out of it and use it ...
0
votes
0answers
397 views

unable to charge Google Nexus I9250

I am unable to charge my phone most of the times. When I connect my phone to the USB cable which is in turn connected to the computer or charger, most of the times (about 90 percent), I am unable to ...
0
votes
0answers
155 views

Recharge interface infinite boot loop

I'm having this problem for a while and don't remember exactly how it occurred, if I remember well, it started happening after flashing a non-stock ROM with CWM, but can't really reproduce it. ...
1
vote
0answers
133 views

problem with charging symbol,

I purchased a unlocked Samsung Galaxy 3 mini from the internet. Worked fine until I went abroad and change the SIM card. Now I am back in the UK, I am having trouble charging the phone. The charging ...
1
vote
1answer
4k views

Is it better to detach a charger when my Android device gets fully charged? [duplicate]

When using my Android device at my desk, is it better to (from a battery health point of view) detach a charger as soon as the device gets fully charged, or is it ok to keep it on the charger? I like ...
6
votes
3answers
7k views

Nexus 7 charges very slowly, even with 2 amp chargers

I'm facing a rather painful issue with the battery life/charging issue with my Nexus 7 (4.2.2) When idle and plugged into my 2A charger with the stock USB cable, it charges VERY slowly. I'd say ...
6
votes
1answer
366 views

What does a red battery icon indicate?

While charging my Jellybean 4.1 device at my PCs' USB, I see the following red battery icon in the notification bar: What does the red color indicate?
0
votes
0answers
746 views

How to root this device? RK3188

I am attempting to root at RK3188 Mini PC I bought from amazon. I believe I have found the drivers, but cannot figure out how to connect a USB cable to the device to connect to my PC to root. Please ...
3
votes
1answer
4k views

Looking for a consistent answer about battery calibration

This forum is full of questions about battery calibration. The thing is, that either I'm blind or one answers contradicts others. In particular: For example forums says, that battery should be ...
1
vote
0answers
2k views

Auto boot when charger connected (for HTC Magic)

I want to let Android OS to boot automatically when the charger connected (for HTC Magic) without pressing power button I found this guide: Complete boot when charging If your phone only gets one ...
2
votes
1answer
5k views

HTC One X Does not charge or turn on

A day ago my HTC One X would not turn on. When I booted into developer mode it said at the top "**LOCKED**" and "Security Warning" (or something similar). It also said "cpu-bootmode: disabled". I was ...
0
votes
1answer
151 views

If I charge Nexus 4 with a wireless charger will it charge considering red LED error

I've had a red LED error in my Nexus 4 for a week and it won't turn on or charge. I've tried everything, pressing the power button for 60 seconds, etc. I even opened it up and removed the battery and ...
1
vote
2answers
127 views

Full battery completely depleted within a few hours without any user activity — what to do?

I left my phone on the table with full battery without doing anything with it. After a few hours the battery was completely depleted, and the phone automatically shut down. What could cause such a ...
4
votes
3answers
16k 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 ...
1
vote
1answer
80 views

email me when a charger is connected?

I want to be able to leave a device with charger plugged in the socket, and have it email me (or call/text me on my another device) as soon as it gets power (ie when the charger is technically or ...
3
votes
0answers
382 views

Android stuck in downloading mode

So what happened is that my mobile (Galaxy S4 - GT-9500) ran out of charge. When I plugged in the charger and tried to turn it on, it went directly to what I think is the recovery mode (Android logo ...
3
votes
2answers
1k views

galaxy s3 not charging

I have a samsung galaxy s3. It is only 7 months old. Its battery is not getting charged. I have tried to reboot and take the battery out and put it again,it still doesnt get charged. The usb port is ...
0
votes
1answer
386 views

Reverse polarity damage

I need help. I was using a generic usb charger to charge my android phone and it was charging fine but somehow the polarity was reversed. After being plugged in for some time, the phone became very ...
2
votes
0answers
35 views

Battery percentage going down while charging! [duplicate]

(device: Samsung Galaxy S 3) I've just witnessed something rather strange: while tethering to my laptop, with the phone being plugged in a power source (the charger I got with the device) - the ...
3
votes
2answers
6k 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 ...
9
votes
1answer
669 views

When phone is off and I plug it in to outlet the phone turns on instead of charging

This might be hardware but I'm not sure so thought I'd ask. Went to plug in to charger at home last night - noticed it didn't charge. Wake up in the morning though and the battery hadn't dropped (or ...
4
votes
3answers
4k views

Nexus 7 says it's charging but it isn't

I have had a Nexus 7 since September and today something strange happened. I plugged it in, as usual, to recharge the battery. It charged up to 36% and now it still says it's charging but it never ...
5
votes
3answers
55k views

Charging paused. Battery temperature too high or too low

I have a Samsung Galaxy player that has been giving me the message "Charging paused. Battery temperature too high or too low". I left it unplugged and powered down all night, and it still gave me the ...
0
votes
0answers
1k views

Charging paused, battery temperature too low

I dropped my Samsung Galaxy S2 in water, and now when I plug it in I get a message that says: Charging paused, battery temperature too low Is there any way to fix this?
3
votes
7answers
9k views

Charging the Asus Transformer (Prime)

Can you charge the Asus Transformer (or the newer Prime) without the keyboard dock? Since the tablet itself does not have any USB ports, I don't see how you could charge the tablet without the dock ...
3
votes
2answers
998 views

Why does my phone have erroneous input when connected to a non-OEM power source?

My phone (Motorola DROID RAZR MAXX) seems to have problems accepting touch input when connected to a non-OEM power source. When connected to my computer via USB, it accepts input fine, as it does when ...
2
votes
2answers
9k views

What's the input current draw for the Nexus 4?

I am trying to find the maximum possible current draw of the Nexus 4 when recharging the battery. The adapter that comes with the Nexus, supplies 1.2A The Qi Charging Station needs 1.8A But I ...
8
votes
2answers
6k views

What's the safe limit on charger output for a Galaxy Nexus

The charger that came with my Galaxy Nexus phone outputs 5 volts at 1 amp. I have another charger that outputs 5v at 2 amps. Is it safe to use this charger? What's the limit I can use without damaging ...
2
votes
2answers
553 views

Nexus One overheats/restarts when connected to car dock or car charger

Whenever I connect my Nexus One to the official car dock, my phone heats up rapidly, and eventually restarts. Obviously, the phone is restarting to prevent it from damaging itself. So the question ...
3
votes
0answers
316 views

since upgrading my software to 4.1 my samsung galaxy note wont charge properly

I recently upgraded the software on my galaxy note to 4.1 and since then its been very strange when charging. I put it on charge last night woke up this morning it said charging 23% came back to it a ...
0
votes
2answers
287 views

Plug in the charger the wrong way?

Yesterday, I mistakenly tried to push the charger plug in my phone upside-down. The phone seemed to react to it. Does it matter which way the plug is turned for charging?
1
vote
1answer
225 views

Does the Asus Transformer Prime GPS extension kit have a USB pass thru to charge the tablet

As noted Asus is offering a GPS Extension Kit for the Asus Tranformer Prime TF201. Does the module has a pass thru USB multipin connector to allow charging from the USB cable or does one have to ...