For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]

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0
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1answer
66 views

How to recalibrate the OS for an external battery?

I recently bought an external non-standard 7000 mAh battery for my Samsung Galaxy S3 but the phone doesn't seem to recognize it. Is it possible that the phone needs to be reconfigured or recalibrated ...
0
votes
0answers
10 views

Nexus 4 red light of death. Unable to fix it (tried two possible solutions)

Using a 3-year Nexus 4, I started yesterday to suffer the red light of death issue. Firtsly, I open the unit, disconected and conected the battery, following the directions of: ...
0
votes
2answers
2k 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 ...
1
vote
0answers
24 views

Android phones that don't require a battery to run properly

My Android phone apparently requires a battery in order to function. If I take out the battery before boot, it shows an empty battery with a question mark on it and refuses to boot no matter how I ...
0
votes
3answers
4k 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 ...
1
vote
1answer
2k views

Ultra STAMINA mode bug on Sony Xperia Z3?

I had a long night yesterday, and at 5am my Xperia had like 10% of battery left, so I put it in Ultra STAMINA mode and fell asleep. This morning, the phone wouldn't turn on as the battery was ...
2
votes
0answers
20 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 ...
0
votes
3answers
50 views

S4 Wont turn on unless removing battery then turns off after 2 seconds

So, my Galaxy S4 turned off randomly today during charge. I attempted turning it back on via the power button but it would not respond. Then I tried taking out the battery and replacing it, the ...
0
votes
1answer
16 views

Should I turn off or standby my encrypted phone to maximize lifespan

Should I turn my phone off at night or just lock it, to minimize battery usage and battery wear, and also wear to the flash memory? This question is similar to Should I keep my Android tablets' ...
0
votes
1answer
25 views

A Bad Charger Damaged My Asus TF300t Tablets

I bought a charger set off of Amazon.When i plugged it into my tablet it flashed and rebooted and the battery shows 0% and will not charge.Also when i hook up the USB charger the computer does not see ...
62
votes
11answers
80k views

How to disable battery full notification sound?

When battery has been charged full, my Galaxy S phone gives the same notification sound that is used when I receive SMS. Is there a way to disable the sound without also disabling sound from SMS? It ...
205
votes
7answers
51k views

Does constant charging harm my Android cellphone?

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics ...
0
votes
0answers
10 views

Battery getting hot on my Galaxy S3

I have a Galaxy S3. I have been using the phone as my in-car satnav, plugged into my car and haven't had any problems until the last couple of trips. After about 20 minutes or so, I get the message ...
2
votes
1answer
43 views

Does data reset wipe batterystatus.bin?

Does data reset delete batterystats.bin? Location of batterystats.bin file is /data/system/batterystats.bin. Note: NVRAM also remains in data partition but data reset does not wipe IMEI. Can I ...
1
vote
0answers
1k views

Samsung Galaxy III screen turning on by itself and draining battery

Even though I haven't received any notifications, the screen on my Samsung Galaxy III keeps turning on and draining my battery. What's causing this?
1
vote
1answer
3k views

Having serious technical problems / crashing on my Samsung i9300

I have a Samsung Galaxy S3 (i9300) that I've been using for slightly over a year. I am a rather heavy-duty user of the phone, and have used in intensively for that time. I do take care of the phone ...
0
votes
4answers
4k views

Samsung Galaxy S2 shuts off when plugged in: screen goes black then a grey empty battery appears

Samsung Galaxy S2 shuts off when plugged in. The screen goes black then a grey empty battery appears for a second then disappears. This "flashes" several times in about 4-5 second intervals. I can not ...
1
vote
0answers
17 views

How do I test to see if a battery is good?

I have had such a nightmare with sprint. I'm not going into all the details but I ordered a battery for my htc 3d phone. I just want to get it up and running. I lost 10 days worth of texts and ...
4
votes
1answer
10k views

Cell standby and Phone idle

On the battery use screen, what are the differences between Cell standby and Phone idle items?
0
votes
1answer
7k views

battery draining problem in samsung galaxy note 2

I've replaced my damaged battery with a new one in my samsung galaxy note 2, but it drains too quickly. After fully charging the battery, when I leave the phone without using it (the screen is ...
0
votes
0answers
4k views

Google Play services using up battery - Why and how to fix it?

Why would Android devices have "Google Play services" using up the second-most amount of battery usage over a 24 hour period (second only to screen power)? On one device, I see "Google Play services" ...
0
votes
1answer
16 views

How to control battery usage by display in Xiaomi

I am using a Xiaomi redmi 1s phone which is of battery capacity 2050mAh. Most of the time when I checked the battery status, the screen uses about 55% to 70% of battery. Its display is of 720p. How ...
1
vote
1answer
34 views

Is there a way to leave the phone plugged in, but schedule when to actually charge it?

Under my normal daily use, my phone would have around 50~40% battery power left before I go to sleep. I don't want to keep my phone plugged in to charge over night, but I do want it to be at 100% ...
1
vote
1answer
4k views

Battery goes down from 100% to like 80-75% so fast

Why does my LG L90 battery goes down from 100% to like 80-75% so fast (about 30 mins) and then the battery lasts quite a while? Is it because the battery has been charged only a few times? Because I ...
1
vote
0answers
289 views

Nexus 5 crashes, battery down to 0% on Android 5.1.1

I'm currently running Android 5.1.1 (Chroma custom ROM) on my Nexus 5 and recently have been experiencing some weird issues with my battery, which have appeared more frequently in the last few days. ...
0
votes
1answer
95 views

30-40% battery drain at night

I am using unlocked Samsung Galaxy S5 G900F model for 1 year. It working fine. But for 3-4 months I cannot keep my phone on overnight. It drains battery to 30%-40%. I have tried all possible solution ...
0
votes
1answer
2k views

Cannot charge due to low battery temperature on Lenovo P780

My Lenovo P780 won't charge because the battery warning always pop up & says that charging is paused due battery's temperature is too low. I have checked the battery's temperature & it is ...
0
votes
1answer
1k views

Battery Savers with the Android 4.0 [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android device? How do I save on my battery on my new 4.0 (Ice Cream Sandwich) device? All I have seen so far is a bad ...
0
votes
1answer
39 views

Moto g 2 Battery is draining within 3 hours [duplicate]

My motog 2 is draining the battery drastically as fast as it can. Please help me. I couldn't carry a charger all the tym. I have consulted the customer care service they provided me two links to ...
2
votes
1answer
880 views

How to have a long Standby and Battery -life? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android device? My Huawei Android is dead after one day. I am looking for ways to extend the battery life a new Android ...
4
votes
1answer
1k views

Download Manager causes high CPU usage on Motorola Razr with stock Android 4.0

My Razr (Stock ROM 4.0) is very very hot. After some research I found com.android.providers.downloads is responsible, since it's using about 60% of CPU. I have tried killing it, and it respawns, ...
0
votes
0answers
24 views

Proving a friend that I didn't hung up on him,my battery was dead

As the title says already a friend of mine is upset with me because he thinks that I hung on him but the truth is my battery was dead. Somehow he doesn't believe me. I'm about to go crazy. Anyway the ...
8
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 ...
0
votes
1answer
111 views

Samsung galaxy 3S, battery is good, phone won't charge or power up

I have a samsung galaxy 3S, about a week ago it rebooted itself, since then it will won't charge or turn back on, I have tested the battery to see if it was that, the battery works perfect, I have ...
0
votes
4answers
48 views

Nexus 4 charging/uncharging while plugged in

I have a problem when charging my Nexus 4, I tried looking around to no avail. My problem is that when I have my phone plugged in to charger it doesn't charge, Instead it flickers between charging ...
1
vote
2answers
436 views

Phone is too flat to charge

My phone died today, and now it won't charge at all on the charger it came with. I don't think the battery has failed, as it still gives me just as much charge on a full charge as always. The phone is ...
4
votes
3answers
94 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 ...
0
votes
1answer
2k views

How to calibrate a new Nexus 5 battery that's higher capacity than original?

Just got a KBTEL battery that's 3800 mAh compared to the original 2300 mAh nexus battery. I charged it dead overnight, and now its been running for more than 7 hours and the capacity shows below 5% ...
0
votes
1answer
53 views

How to run an app shortcut or a tasker task when battery temperature is above a custom threshold?

At high temperature: I can trigger an alaram using Battery Bot. Turn off data/wifi/bluetooth etc., using Battery Tasker. But I want to do many things like: Turn off data when temperature is ...
5
votes
4answers
1k views

Battery meter went crazy and now stays at 0%

I have a Samsung Galaxy Discover that worked fairly well until the last week or so. I ran the device down down to 0% - at which point the device shut off. I performed a full recharge and then ...
0
votes
0answers
23 views

Bettery Saver setting not sticking

In Android Settings, under Battery, there is a setting called Battery Saver. On multiple devices, changing that setting to On simply results in it changing back to Off within a few seconds. What is ...
1
vote
0answers
18 views

How can I prevent battery saver from disabling when the device is charging?

The battery saver functionality in Android 5.0 and 5.1 automatically turns itself off when the device is "charging". Unfortunately, when I'm charging my tablet from my car, most of the time the charge ...
0
votes
0answers
40 views

Figure out why the “System” process on Android is using a lot of CPU

I have a Samsung Galaxy S5 with Android Lollipop. My phone was feeling sluggish. Using an app called "OS Monitor", I see that the "System" process (not to be confused with "Android System") is using ...
0
votes
1answer
30 views

battery is getting discharged in one minute when it is around 30 %

My Samsung duos s 7582 is getting discharged very quickly in about a minute when the battery percentage shows in between 25 to 30 %. When the battery is fully charged it runs the mobile for 8 to 10 ...
1
vote
0answers
41 views

Is it possible to charge one discharged smartphone from other?

Suppose u are having 2 twin smartphones of same brand. one is fully charged and other one is fully discharged. My question is that Is it possible to charge one discharged smartphone from fully ...
0
votes
2answers
41 views

Prevent battery from overheating

I have the habit of leaving my phone in charge all night while I'm sleeping, but I've read that this is going to make the battery last less time. Would it be possible to automatically stop charging ...
1
vote
2answers
93 views

Can Telegram notifications be disabled?

Can you disable Telegram notifications somehow? I am seeing a huge battery consumption since last few weeks and after upgrading to Android 5.0.2. After one day of use battery app is reporting that ...
0
votes
0answers
116 views

Battery life indicator issue on Alcatel One Touch Fierce 2

I have Alcatel One Touch Fierce 2. When I charge my phone to 80%, within 10 minutes it's on 75, and as soon as it hits 50, it drops down to 1 and up and down over and over again. What's wrong with my ...
1
vote
1answer
18 views

Measure the exact amount of battery usage within a period of time

I'm checking the effectiveness of using different cpu governors for my android phone under different conditions; The problem is that I can't be sure of the amount of battery usage for each ...
1
vote
2answers
610 views

Galaxy Tab 3 won't boot - dead battery?

I'm kind of disappointed, this morning I wanted to start my GT3 but I get this logo instead (sorry for the poor quality) : I've try AB testing with my Nexus 5 battery loader, both works on my ...