Questions about Battery life (how long each charge last) or/and Battery Durability (how long until it needs to be replaced) should use this tag.

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4
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607 views

Battery life in Samsung Galaxy 3

I recently updated my Samsung Galaxy 3 to Android 2.2 . After the update my fully charged battery dies in just 3 hours(without any use) and around 1 hour if I use it (talking,browsing etc). I am using ...
3
votes
0answers
585 views

MS Exchange with Default Email App is Randomly Draining Battery!

I'm using my Exchange email account for work with the default Email app on my Nexus S running Jellybean... usually everything works just fine, but within a week or so it'll start consuming massive ...
2
votes
0answers
71 views

Build android from source. Battery power incorrect

I added a kernel module to the msm flo kernel. I built android JB from source for my Nexus 7(flo). I flashed the device with the built OS. My battery power seems to be stuck at 100% remaining. I ...
2
votes
0answers
66 views

Why is GPS Status eating a third of my battery power?

I'm trying to have as little as possible running when I'm not using my phone. In the system settings under battery you can see what has been using the most power. I've been able to disable or ...
2
votes
0answers
414 views

2G vs 3G Talktime

When I was going through specs for my Xperia SP, I found the 3G talk time to be more than the 2G talk time. Talk time: Up to 10 h 25 min (2G) / Up to 19 h (3G) More over I went through the specs ...
2
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0answers
171 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 ...
1
vote
0answers
90 views

Samsung S3 neo battery life started to reduce rapidly from 2 days

I am using a galaxy s3 neo phone from almost 8 months, from two days I was using my computer internet in my mobile through usb. Then yesterday night while sleeping the battery was 47 percentage , and ...
1
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0answers
35 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 ...
1
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0answers
14 views

How can I monitor Android device's battery status through LAN or the web?

I would like to know if there is a way to monitor the battery status of different Android devices across a LAN network. Ideally it would be a web browser interface that shows the battery level of each ...
1
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0answers
157 views

How can I troubleshoot what is causing 'Android OS' to eat up lots of battery?

Are there steps I can take to rule things out eventually leading to a root cause? I am currently using the latest Dirty Unicorn ROM on a Nexus 5. For the same of argument, consider the case where ...
1
vote
0answers
65 views

Faulty battery status indication

I have a Huawei Honor U8860 with Android ICS. I use two Mugen Power batteries. I always use one battery until it's empty, then charge it to full while using the other battery. Recently Android battery ...
1
vote
0answers
112 views

Is slow charging bad for the battery?

I know that charging the battery too fast can overheat the battery and shorten battery life. But is charging it slowly, e.g. from a USB 2.0 cable plugged to a laptop, also harmful for the battery? I ...
1
vote
0answers
336 views

Stay awake while charging, bad for battery?

Is it bad for battery to use the option to stay awake while charging? Will it make my battery drain faster in the future? PD: I use my phone for app development. I have activated the stay awake ...
1
vote
0answers
357 views

Does GCM always work over cellular data, as APNS?

APNS always works over cellular data, even if you are connected to WiFi (because WiFi uses extra power, and thus iOS devices turn it off during sleep, without affecting APNS). Is GCM (Google Cloud ...
1
vote
0answers
169 views

How can I recover lost Contacts on Galaxy GT-NT7000. Contacts and Dialer App became very slow and battery runs down fast,

This is a RAM issue and lost contacts issue (contacts not saved under Google). The log of text messages with all contacts, since start, is all, still there. My Android version is 4.2.1. I have had 3.5 ...
1
vote
0answers
276 views

Samsung S3 Mini power save mode activity

I'd like to use power saving feature available in Samsung's TouchWiz in Llama but the only way to do this is to tell Llama particular activity/intent to run I guess. As in this thread on XDA. I'm ...
1
vote
0answers
794 views

Galaxy S3 Mini drains excessive battery when Wifi is ON

This question is linked to this one: Wifi battery saving tips or automation This time, the question is different. I have here a Galaxy S3 Mini phone that behaves strange. When Wifi is OFF, battery ...
1
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0answers
110 views

Wi-fi disabled during lock still partly active? Or do I mis-interpret the battery graph?

On my Google Nexus 7 I noticed that it would consume around 1% of battery each hour that it was just being idle. I suspected that battery-usage during idle time could be improved. So the next night (7 ...
1
vote
0answers
107 views

Optimizing battery life via colour schemes

I have been looking for a way to change everything on my phone to black (and pure green), since the screen is the main power consumer. "the Green OLEDs provide 10 times more Brightness per watt ...
1
vote
0answers
2k views

Samsung Galaxy S2 battery gets hot

My Galaxy S2 is less than a year old. The battery sucks! I have to charge it more than once a day. Tonight, while on the charger, the battery life is actually going down. It's also way too hot to ...
1
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0answers
349 views

Unexpected battery discharge on Samsung Galaxy S2

I charged my smartphone yesterday to full 100%. When I woke up today, I saw that battery was 40%. Android OS has used 90% of the battery. My Android version is 4.0.3. What is the cause of the problem? ...
1
vote
0answers
342 views

Handsfree profile sniff mode

I recently connected a bluetooth module (BTM511) to my Android phone (SG2 running android 4.0), using both the handsfree and the headset profiles. I notice that the Bluetooth device never goes into ...
1
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0answers
199 views

Poor battery after update to Android 4.0.3

I updated my non-rooted Samsung Galaxy S2 from 2.3.5 to 4.0.3. Now, I recognize a significant decrease in battery lifetime. Any idea what may cause it and how to get around it?
0
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0answers
14 views

Battery draining faster after recharging on Galaxy S4 Mini

I'm struggling with my Samsung Galaxy S4 Mini. Actually the battery is very good and since I don't use my phone a lot, it lasts pretty much 2 days when I let it die and full recharge it. The issue ...
0
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0answers
6 views

Galaxy S5 Battery Drain

Galaxy S5 (unrooted) My battery drain isn't dreadful yet, but it isn't getting better. I can't narrow down what is causing it. I have tried keeping my sync turned off, keeping google location ...
0
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0answers
19 views

battery drain in airplane mode

i have a Galaxy Grand Duos and i constantly faced battery drain issues. after MANY ideas to what the problem could be, (even by samsung service), i decided to root the phone and flash custom ROM. ...
0
votes
0answers
49 views

Asus ME302C tablet charging problem

This is in continuation to my earlier question (Asus ME302C tablet charging forever and doesn't start). Somehow my account is messed up so posting new question. My ASUS ME302C tablet stopped ...
0
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0answers
37 views

Battery Draining within seconds

I am using Samsung Galaxy S II GT-I9105. My problem is battery draining. It works normally after i charge it full, but as soon as the battery percentage hits 30%, draining accelerates and will go to ...
0
votes
0answers
47 views

Wake up to find that proximity sensor is on

Samsung note 2 KitKat 4.4.2 It happens repeatedly for the last few days Before sleep: fully charged, clean all the background apps, turnoff GPS turn on flight mode. The next morning, battery ...
0
votes
0answers
63 views

Device randomly restarts and has battery drain after .apk file installation

I'm developing an Android app, and at the moment I let to install as an .APK file from my webpage to my close friends. On the device of one of them, the installation causes an error and the App ...
0
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0answers
21 views

uncertain android battery backup

I have a Moto G XT1033 dual sim rooted and running Kitkat 4.4 (eagerly waiting to eat Lollypop ^_^) I have noticed strange battery backup Consider following situations 1. Normal apps running, 3G ...
0
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0answers
138 views

Battery drains on my LG G3 despite everyone saying it has a great battery life

So I have my LG G3 for 5 days and the battery life is not what i expected. I am not a real havy user, when I am home WiFi is turned on when I'm using the internet, data is always turned off like ...
0
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0answers
133 views

Nexus 7 2013 lost Battery calibration after the lollipop upgrade. Does anyone else face the same problem?

Did anyone experience battery level jumps from 50% to no charge in a matter of seconds? I believe it's a bug in the new update. My device is relatively new... About 4 months old...
0
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0answers
58 views

suspend backoff

How to get rid of suspend backoff wakelock. It seems to be consuming maximum battery as per betterbatterystats. and battery drains very quickly. i am on paranoid android 4.4.4 galaxy s2. this problem ...
0
votes
0answers
65 views

Effect of Background Color on Battery Life in Android App

I am studying about the effect of different parameters of Android app on Power Consumption and tips for optimizing them . I came across this paper which states that ligh background color consumes ...
0
votes
0answers
115 views

How do I see battery usage after a complete drain?

I'm having the classic problem of sudden battery drain, but the twist is that I can never catch it in the act. I just find my phone dead when I pick it up to use. When I go to the Battery section of ...
0
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0answers
88 views

Samsung S3 mini battery discharges out of device quickly

Few days ago (I do not know since when exactly) my Samsung S3 mini started discharging really quickly (battery life only on 2G standby without phone/Wifi/3G usage only 10 hours). I removed the battery ...
0
votes
0answers
18 views

How is LTE data usage battery usage tracked, if at all?

I'm having a debate with a friend about how much battery usage LTE uses. In my experience, and apparently that of many people, disabling data grants a significant (30%) or so increase in battery life. ...
0
votes
0answers
148 views

Battery impact of Android always on wifi location scanning

Google Now is popping up a card that reads: Improve my location For more accurate location, let Google search for Wi-Fi connections, even when Wi-Fi is off. Is this likely to have an impact ...
0
votes
0answers
736 views

Is there a Battery Cycle Counter App?

I have an HTC One M7 (4.4.2) and battery life is starting deteriorate. It maybe that I have some misbehaving apps, but I'd be curious to find out the number of charge cycles my device has used since ...
0
votes
0answers
248 views

Unexplicable battery draining on Galaxy Nexus

Okay, so first some details: Samsung Galaxy Nexus (GSM version) Stock rom (rooted) Brand new stock battery (1750mah) I started suffering from unexplainable battery draining a few months ago. And ...
0
votes
0answers
148 views

Moto G battery drain by Google search

I have a Moto G and I have the Moto Assist enabled for sleep mode. Every morning I wake up, I see my phone has been kept in deep sleep as long as Moto Assist was enabled. After that time, even though ...
0
votes
0answers
66 views

How can I make my Android phone request (negotiate for) more charge from (with) the host PC?

Hello there is a wonderful Q&A here about detecting how much charge your phone is drawing from the computer host: How do you check how much power a USB port can deliver? In my particular case, my ...
0
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0answers
130 views

How much “Keep awake” is normal for Google Services?

How much, in general, of "Keep awake", and "Wakeups" is normal for Google Services? When should I be alerted that something is wrong? For example, would 2 hours of "Keep awake" be normal for ...
0
votes
0answers
2k views

Exchange Services and Android OS/System draining battery

I'm using Samsung Galaxy S4 with Android 4.4.2, for about 5 months. I've experiences before some problems with battery, like sudden crashes when using apps intensively using graphics, but today the ...
0
votes
0answers
42 views

Something eating my battery

I have my Nexus 7 2013 few months. Few weeks ago, for some reason battery start draining - it was empty after one day or so. I reinstalled whole tablet, and after that everything went to normal. ...
0
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0answers
55 views

Does GCM use data from Android OS or Google Services?

I've noticed there are two separate entries for data usage -- Android OS and Google Services. What is the difference between the two? Which one ensures that GCM is working?
0
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0answers
76 views

Android battery life

I updated my note 2 to 4.3 version 2 days ago and since then my battery life has reduced to half what it was before updating my phone. Can anyone help me find out why my battery life has got so bad?
0
votes
0answers
117 views

How to disable/remove ALL cell functionality

I have a Kyocera Event (Virgin Mobile) running stock Android 4.0.4. This is only used as a media player for about 90 minutes ONE DAY per week. I am looking for a good way to extend battery life as ...
0
votes
0answers
827 views

How to debug “wlan_wake kernel wakelock” on an unrooted device?

The question is as short as the title. I've a Samsung Galaxy Note 3 & it has started showing issues where the CPU remains in lowest possible frequency (250Mhz) and it doesn't go to deep sleep. I ...