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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1answer
2k views

Android clearing recent applications list

After exiting the applications on my Galaxy nexus, they appear on the recent applications list. Do they still use CPU/battery? Do I have to remove them from recent applications list in order to save ...
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1answer
612 views

How much does an LCD's backlight drain the battery?

The screen tends to be one of the biggest consumers of electricity. How much of this is for the backlight vs the actual screen, particularly in the case of an LCD?
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1answer
416 views

How do you change the screen background on Nexus S?

Just bought a Samsung Nexus S. No manual came with it. Apparently the moving default screensaver eats up heaps of battery life and I am not getting much battery life out of this new phone and I am ...
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1answer
433 views

Connecting to internet using Wi-fi portable hotspot or bluetooth? which one is more battery saving?

I have EDGE internet connection in my Samsung Europa I5500L (Froyo 2.2). I can connect to the Internet from my laptop using both bluetooth or making a wifi hotspot from the device using that EDGE ...
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3answers
403 views

Battery Life on Desire HD

Why does the battery for android phones perform much better after 2 or 3 weeks of usage? Is there any logical reason?
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1answer
100 views

NFC battery draining through constant use

Does putting a device that constantly checks/uses NFC affect/drain the battery? One example is Dimple IO which puts NFC buttons on the back of your phone.
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2answers
80 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 ...
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1answer
909 views

Effect of changing resolution on battery

There are various ways to change the resolution on Android devices, and I was wondering: Does it have any noticable effect on battery life? And has anybody ever tried doing some proper measurements?
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1answer
5k views

Very high battery drain by Android OS, Android System, and Screen in Samsung Galaxy Note 3 running Lollipop

I've got a Samsung Galaxy Note 3 (SM-N900) running Android 5.0. The battery life is terrible. Most of the battery is taken by Android OS, Android System, and Screen. The moment I switch the screen ...
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2answers
8k views

Battery of Samsung Galaxy S5 drained in 5 hours on Android 5.0

I received the over the air android 5.0 update a week ago for my Samsung Galaxy S5. I installed the update and since that the my fully charged battery is depleted in 5 to 8 hours. Before the battery ...
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3answers
264 views

Can GSM operator affect battery life?

I am using samsumg galaxy s3 mini. Couple of days ago, I changed the GSM operator I am using which has more signal strength and internet speed than old one. But I realized my phone's battery life ...
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1answer
216 views

How to drop out of airplane/flight mode periodically to check messages

I normally keep my phone in Flight Mode (called "Airplane Mode" under 2.2) in order to save battery power. When I have some time to check messages, I turn off Flight Mode, re-enabling the cellular ...
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1answer
7k views

Google Maps runs GPS in background even if the GPS radio is off - how do I fix?

I have the T-Mobile version of the LG G2, running Android 4.2.2, everything stock except the keyboard. I'm not sure what version of Google Maps, but the Play Store says it's up to date. Yesterday I ...
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3answers
9k views

GPS Battery Drain — LocationManagerService

EDIT 3: Someone pointed me in the right direction on another forum. There was a bug with HD Widgets that rolled out yesterday. HD Widgets Bug As of yesterday I am getting a 35%/hour battery drain. ...
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2answers
3k views

“Restrict Background data” with Jelly Bean on tf300t ASUS tablet

On my tf300t ASUS tablet (with wifi only) I tried to set "Restrict Background Data" following Settings->Data Usage->three boxes in the upper right corner, but there is no such option. I read on ...
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3answers
23k views

Battery drain with in no time in Samsung Galaxy Ace

I have Samsung Galaxy Ace for almost an year now. The battery of my phone get discharged now with-in no time of charging. The battery status in Setting -> About Phone - > Battery use shown the ...
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1answer
155 views

Using a fully charged Galaxy Note

Is it safe to use a Galaxy Note that is fully charged and at the same time it is plugged in to the wall socket? I'm worried that the battery might be charging and discharging at the same time and it ...
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1answer
968 views

Beside shut down the phone, are there ways to prevent battery usage for Call Standby?

Beside shutting down the phone so that the battery will not be used for Call Standby or/and Phone Idle, are there other ways that can prevent the battery from being wasted? (Would the use of Airplane-...
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1answer
226 views

Power management on Android — is app CPU correlated to power usage?

2 questions: Is application CPU usage on Android correlated and how highly to battery usage? In other words, are apps that suck a lot of CPU also draining the battery or not necessarily? Is there a ...
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2answers
813 views

Power being eaten by screen usage

This morning, when I woke up my phone was out of battery power. So when I checked the battery usage I see the message Display had been used 90%. This kind of situation had never happened to me ...
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1answer
48 views

Help me save battery, BBS dump included

I got fed up with my Android battery life and thought I should use it only when really required. Hence, I installed minimum number of apps. I have runtastic, runkeeper, gps status toolbox, ...
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1answer
89 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 use"...
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1answer
154 views

Maximize battery life while recording video

There are times where I need to record a lot of continuous video. I've found battery life to be insufficient for this. Is there anything I can do to squeeze out every bit of battery efficiency? The ...
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1answer
134 views

IM-A870L Radio Interface Layer broke down

I am having this weird problem with my Vega Iron since a couple of days. Past 2 days the battery was down and phone shut off. I put it to charging and when I came back after couple of hours, the led ...
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2answers
2k 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 ...
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1answer
3k views

Battery backup is not good after the CM12 update on Micromax Yureka

After updating to Lollipop CM12, my Yu Yureka is not giving not even 7 hours backup in balance mode. On KitKat CM11, it was giving 1.5 days backup in balance mode. Is there a way to increase the ...
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1answer
297 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 ...
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1answer
162 views

Samsung Galaxy S2 new battery dying too quickly

I'm trying to figure out if the new battery is faulty or if there could be something else causing the battery to charge the whole night and then die after half a day. If I take out the charger while ...
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1answer
3k views

Can I turn off all “Notification” of all apps, services in Android phone?

I found tips to improve battery in this link: http://www.gottabemobile.com/2012/10/30/hurricane-sandy-crisis-map-puts-shelters-storm-info-alerts-power-outages-on-mobile/ In this link - author said we ...
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1answer
11k 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 ...
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1answer
536 views

Should I accept 2,5 year old Samsung Galaxy replacement battery?

I've just bought a "brand new" replacement battery for my Galaxy Nexus phone. When on-line store's package arrived, I was more than surprised (actually, shocked!) to find out, that battery's ...
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1answer
91 views

GPS battery usage as a function of how often it is pinged for data

Consider an app that uses GPS to get location details. Those types of apps often use a lot of battery power. Here is what I am wondering; let say one app get the details every 5 seconds, and another ...
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1answer
20k views

How to make rooted android phone faster and avoid battery drain

I have rooted by Samsung S dous s7562 (645 RAM single core 1ghz processor)phone using Kingo Android root desktop App. I decided to root my phone as it was very slow . I have already done the ...
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1answer
44 views

Will disabling LTE extend my battery life even if I'm not using it?

I was just wondering, if disabling LTE will improve my battery life even if I'm never using it (there's no LTE in my country).
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1answer
136 views

Battery Life of the Samsung Galaxy Note 3 with andriod 4.4

Since the update on my Note 3, I have noticed a decrease in battery life. So my questions are, does the 17% increase in performance come in a decrease in battery life? Is it 4.4 using up more ...
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1answer
75 views

Is there a way to find out if a given app supports GCM (like APNS)?

Is there a way to find out if a given app supports GCM (Google Cloud Messaging)? (GCM is Google's version of APNS.)
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1answer
611 views

Is there any battery-less Android-based device

I'be been working on some Chinese (bit crappy) device, with own system, that had one wonderful (at least for me) feature. When constantly powered-up (plugged to power adapter) it could work without ...
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1answer
5k 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 ...
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1answer
2k views

How can one know if one's battery is damaged

What are the signs of a damaged or completely drained battery for Samsung Galaxy Note II? The battery displays it is empty and yet does not charge. It does not power the phone either. Am confused
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1answer
78 views

Are there any issues in storing an Android battery?

I want to buy a 2nd battery for my i9100 because the phone is getting old and I don't know if parts will be easily available a couple of years on (don't want to upgrade, I like it too much), but I've ...
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1answer
3k views

Why does Better Battery Stats say my Galaxy S4 is awake 100% of the time?

I think the screenshots speak for themselves. Can't pinpoint a reason from what I see. Anyone can help please? Thanks Screenshots (click images for larger variants)
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1answer
543 views

What does power saving do exactly?

What changes happen in functioning of the phone after you turn it on? My device: Samsung S3 Mini
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4answers
9k views

Battery drain on Galaxy Note-I after updating to Jelly Bean

I have Galaxy Note-I (N7000), and upgraded to Jelly Bean 4.1 today. The battery drains fast. Do we expect any update from Samsung on the battery drain issue, or do I need to downgrade to ICS?
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1answer
1k views

Battery getting charged with ultra speed and continuous at 1%charge for more than 9 hrs

My neo v battery getting charged with in ten min from 0 to 100 percentage( Exponential growth graph ) with ultra speed and getting discharged to 1%( it also give alert showing last 1% left, keep ...
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1answer
1k views

How to properly close running apps while avast! Mobile Security is installed/ running in the background?

I've just installed avast! Mobile Security on my Samsung Galaxy SIII. Runs perfect so far, but I can't close my programs running in the background anymore. I used to do this by pressing the button ...
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1answer
335 views

Why does my android phone gain battery when I turn it off and on again?

When I got my new android phone (ZTE N762), I noticed something. If my phone is about halfway on battery, and I turn it off for a few hours, it will gain battery life when I turn it back on, around 5%-...
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1answer
133 views

Latest Motorola update burns more battery on RAZR phone idle?

I had my Droid Razr tuned pretty well to give me 10-12 hours of use without going below 70-80% of battery life. Since the update to 6.12.181.XT912Verizon.en.US (GB 2.3.6), I'm now down to 40% in the ...
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2answers
3k views

HTC Thunderbolt: Why do I have serious text messaging and battery problems?

I just bought a Verizon HTC Thunderbolt Android phone. My battery lasts just 3 or 4 hours... the phone has to basically be plugged all the time. Any suggestions on how to improve this situation? Also, ...
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0answers
11 views

Find out available mobile network bands in my area and disable scanning for unused bands

I have an HTC 626g+ which was supposed to be released in India, but I'm using it in Russia, which probably has different cellular frequencies available. I've read on certain forums that smartphones ...
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0answers
52 views

How to make Snapchat use less battery/network?

I barely use Snapchat, less than 10 text snaps per day, only one or two 300KB pictures, and I almost never watch nor send videos. I never use the rightmost activity (branded content). Despite this ...