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.

learn more… | top users | synonyms (3)

1
vote
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 ...
1
vote
3answers
18k 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 ...
1
vote
1answer
484 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?
1
vote
1answer
389 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 ...
1
vote
1answer
414 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 ...
1
vote
3answers
402 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?
1
vote
2answers
4k 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 ...
1
vote
1answer
139 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 ...
1
vote
1answer
4k 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 ...
1
vote
3answers
7k 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. ...
1
vote
2answers
2k 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 ...
1
vote
1answer
152 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 ...
1
vote
1answer
691 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 ...
1
vote
1answer
183 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 ...
1
vote
2answers
608 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 ...
1
vote
3answers
31 views

What happens to CPU frequency when Android downloads a large file with screen off?

What happens to CPU frequency when Android downloads a large file with screen off? For example, I start downloading system update file and hit the power button to dim my screen...What happens to CPU? ...
1
vote
1answer
92 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 ...
1
vote
1answer
830 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 ...
1
vote
1answer
60 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 ...
1
vote
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).
1
vote
1answer
129 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 ...
1
vote
1answer
58 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.)
1
vote
1answer
476 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 ...
1
vote
2answers
5k views

Battery performance of Dual SIM phone running only one SIM

Does a dual-SIM Android phone running only one SIM yield almost the same battery life as a single-SIM phone? Will both the radios be running all the time regardless of whether both the SIMs are ...
1
vote
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 ...
1
vote
1answer
935 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
1
vote
1answer
75 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 ...
1
vote
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)
1
vote
1answer
505 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
1
vote
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?
1
vote
1answer
983 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 ...
1
vote
1answer
3k views

How much battery savings to expect from SetCPU? [closed]

Has anybody done any serious measurements as to effects of SetCPU (or a similar power-saving app)? I mean, are Google and Linux developers really that stupid not to properly implement power ...
1
vote
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 ...
1
vote
1answer
222 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 ...
1
vote
1answer
128 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 ...
1
vote
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, ...
1
vote
2answers
28 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 ...
1
vote
0answers
59 views

After updating to 5.0, default E-Mail drains battery

Recently I've updated my Sony Z1 Compact to Lollipop and noticed that battery is drained much faster than it was in KitKat. ~50% of battery usage is by builtin E-Mail app, here are the stats: I ...
1
vote
1answer
2k 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 ...
1
vote
0answers
506 views

Why does my unplugged Nexus 5 keep shutting down after any app usage?

I bought a Nexus 5 a year ago and it has been running fine. After the Lollipop update, my phone has started crashing. Even though the phone has enough battery, if I run any app for like 5 minutes (it ...
1
vote
0answers
493 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
vote
1answer
571 views

HTC One M8 Charging Issues

I just wanted to check if my HTC One M8 is working fine, I just got it and it's brand new but the battery runs out in 4 hours of non stop use and mobile data usage and when I charge it, it charges at ...
1
vote
0answers
70 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
vote
0answers
26 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
vote
1answer
63 views

Is there a way to find the battery usage of apps on Moto 360?

I've been using the Moto 360 for a while now, When I started using it the battery life lasted almost the whole day. After a while of usage with couple of new apps, I noticed that the Moto 360 died ...
1
vote
0answers
18 views

Is it safe to leave the charger connected to the tablet through the night, or that it will shorten battery life [duplicate]

I have a Chinese tablet with a red indicator while charging, which turns orange when it is fully charged. Is it ok if it remains connected to the charger after charging is complete?
1
vote
2answers
10k views

com.android.systemui rapid battery drain

I have a Samsung Galaxy S5 that is approximately six months old. My OS version is 4.4.2, and my provider is AT&T. The battery in my S5 will usually last me 2-4 days without charging, depending on ...
1
vote
0answers
182 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
1answer
81 views

Can I run apps with similar function?

Recently I have installed Juice Defender and Greenify. Unknowingly I ran both of them. The result is pretty great (battery almost stopped discharging). Battery levels stood constant for hours when my ...
1
vote
1answer
573 views

Battery drain when wifi is off

I turned off my wifi connection and noticed a heavy impact on my battery life. In a few hours without any usage, it dropped more than the whole day before. See the drop at end while wifi (WLAN) was ...