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)

10
votes
4answers
694 views

Gingerbread has drastically reduced my battery life

I have a Nexus One, and since upgrading to 2.3.3, my phone lasts several hours less compared to 2.2.x. I've swapped out to a new battery, which didn't make a difference. In about 14 hours (of nothing ...
17
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 ...
1
vote
1answer
317 views

What kind of hardware problems is a cheap Android phone likely to have?

For development and application purposes an organisation I am with is considering buying a cheap Android handset here in India (this is the handset). But what kind of problems can one anticipate in ...
4
votes
2answers
11k views

nlpwakelock and “Use wireless networks” option

Under "Location services" there is a "Use wireless networks" setting - whenever the setting is on, I get constant "nlpwakelocks" and the battery drains a lot faster. However, I see that this was ...
1
vote
1answer
2k 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 ...
0
votes
1answer
93 views

short battery life

I have a gs3 running slim bean, and the battery life seems horrible to me. I woke up this morning at 8:00am with 100% battery life and by 1:30pm it has gone down to 23% I have been I barely use the ...
8
votes
2answers
225 views

Avoiding power drain

I just got a samsung Indulge this weekend and I’ve noticed that the biggest power drain on the battery is from the display. I’m blind, so I really don’t need to be able to see it at all. Is there a ...
2
votes
1answer
411 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
506 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
1answer
261 views

Samsung Galaxy s3 Battery life

How long should a Galaxy S3 battery last? My phone is brand new and today it was on standby for most of the day (it dropped 10% while being on standby for 3hrs), I only used the internet for about an ...
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 ...
0
votes
1answer
81 views

About WI-FI battery usage

I keep reading about how much battery does WI-FI use, but when I look in settings > battery, WI-FI shows with < 5% usage when I barely use the phone. And when I use it, the screen takes most of the ...
6
votes
2answers
570 views

Is there a black list of applications that drain battery fast?

Many people complain about some applications draining batteries fast because of bugs or misconfiguration. Is there a black list of such applications that are not energy-friendly?
10
votes
2answers
12k views

Google Services is killing my battery by keeping phone awake

In the last few days my Galaxy S3 has gone from lasting 12-13 hours to about 6 hours. On checking the battery monitor it seems to suggest that the phone is constantly staying awake and that Google ...
1
vote
1answer
2k 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)
2
votes
2answers
217 views

What are some reasons for big difference in time usage and small difference in mAh?

I have found an android phone with really good specs like 1.5GHz Quad Core, 1GB RAM, 5", HD screen. My question though is on the battery Battery Size: 2000mAh Usage Time: 6 Hours Battery Standby: 72 ...
0
votes
1answer
123 views

Do running applications and background processes have any effects on Power Consumption?

I need some help with android applications: Do running applications and background processes have any effects on Power Consumption of the Battery (running down so fast)?
9
votes
4answers
334 views

Does GPS signal quality influence battery life?

Does bad/weak GPS signal affect battery life? For instance, when in the city downtown with lots of tall buildings or in the woods or mountains, will running GPS drain the battery faster?
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 ...
0
votes
1answer
318 views

What do the different coloured bars on the 1x1 widget in Better Battery Stats app mean?

I understand these are supposed to signify ratios of different phone states but I cannot get my head around which is supposed to be which.
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 ...
1
vote
1answer
591 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
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 ...
3
votes
1answer
6k views

Should I keep my Android tablets' power off or leave them on standby mode?

Should I keep my Android tablets power off or leave them on standby mode? Which option is better? I have two tablets: Allwinner A10 single core 10 inch (old one) and Allwinner A31 quad core 9.7 inch ...
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 ...
26
votes
3answers
26k views

How to deal with (orphaned) WakeLocks?

I guess most of you at least have heard about WakeLocks. Many of you will have experienced them already -- wether knowingly or not. Some may know how to deal with them in general -- but only few know ...
5
votes
2answers
4k views

What do CPU Total, CPU Foreground, and Keep awake mean?

I've been keeping an eye on my battery usage on my Android device (HTC One), mostly to see if I can drain it during a full work-day, and I came across the app usage details under the Power settings. ...
1
vote
2answers
72 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
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. ...
4
votes
1answer
13k views

Display screen keeps waking up when locked

When I lock my Samsung Galaxy Nexus by pushing the power button, my phone's screen darkens for a few seconds, then keeps staying awake with the lock screen displayed. This keeps eating away at my ...
-2
votes
1answer
23k views

Unusual battery drain on note II [closed]

My Note 2 battery is driving me insane. I have been using my Note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and ...
2
votes
0answers
20 views

Is it safe to keep Android charging through USB all day? [duplicate]

When I'm in front of the computer, I always keep my Android phone plugged into a USB cable so it's always at a 100% charge and I can type text messages from the convenience of my PC keyboard. Still, ...
0
votes
1answer
65 views

How to stop all but 1 one app including their services?

My HTC Sensation's battery does not last long. I'm going for a Marathon race which should last at least 5 hours and I'm going to use 1 app (RunKeeper) for that period. I would like to preserve as ...
0
votes
1answer
11k views

Why are Dialer, Cell standby, and Phone idle killing my battery?

HTC G2 with Cyanogenmod 7.2.0, T-Mobile. It used to last all day, I'd always plug the phone in before bed and it would rarely run out of energy before then. Lately it runs out mid-day. Today I ...
7
votes
2answers
3k views

What uses most power: GPS or WiFi?

When playing Ingress I find that both GPS and WiFi (each by themselves) provide an acceptable location accuracy. My question is what draws the most power? I'm interested in technical information ...
6
votes
5answers
39k views

Serious battery drain (Screen, Android OS) after JB upgrade

Since I upgraded my Samsung Galaxy SII from Android 4.0.4 (ICS) to 4.1.2 (JB), my battery life has decreased dramtically. Running ICS I could easily have ~25% battery left when going to bed, after ...
1
vote
1answer
444 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
0answers
744 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
vote
2answers
22k views

Why is “Samsung Push Service” using so much of my battery?

Looking at the battery usage summary on my Galaxy Ace Plus (GT-S7500), I found that "Samsung Push Service" (v1.0.4) has used 29% of my battery. I'm having problems with the battery not lasting very ...
10
votes
7answers
4k views

What effect does tasker/locale have on battery life?

Locale and tasker look pretty cool. How much effect will they have on battery life?
6
votes
3answers
3k views

What kind of power saving smarts does Android already have?

I just d/l tasker and it's been really interesting (although not as interesting as I would've liked since I feel a lot of the good features require a root). I would like to optimize my Galaxy s3 so ...
0
votes
0answers
577 views

Battery conservation? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android phone? What are some general ways to improve the battery life of my phone?
0
votes
1answer
274 views

App to show battery current or rate of change of voltage, short term info

Id like to have quick feedback about how what I do on my phone affects power usage, but cant seem to find a good widget or app for that out of the hundreds out there! Anyone know any? Thanks
1
vote
0answers
4k views

Custom ROM to improve Galaxy I9000 battery life (if mostly standy)? [closed]

I have a Galaxy S I9000 (2.3.6, Gingerbread.XXJW4) and use my phone minimally (mostly just on standby). I would like a least a couple of days, and hopefully a week or two between recharges if possible ...
2
votes
1answer
1k views

Can rooting be the cause of battery drainage?

Its been three weeks I have rooted my phone. I have installed a lot of apps using link2sd on external sd card. I have noticed that since the rooting, the battery goes down very fast. 80% of charge ...
13
votes
6answers
1k views

How can I improve the battery life on my device? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android device? My Desire is absolutely great, but with my usage the battery life is really a big problem. I have a few ...
4
votes
5answers
881 views

power consumption by application?

Since cellphone application software requires extra power for processing. Is there any application software that indicate power consumption by particular application?
8
votes
2answers
1k views

Power draw from GPS - Does granularity affect amount of power drawn?

We all know that GPS draws a considerable amount of battery power. Does anyone know of any studies that test the "granularity" of a GPS signal with how much battery is consumed? I'm not talking ...
2
votes
1answer
402 views

Locale powersave plugin & Power Control widget

I use Locale app with powersave plugin. 3G is usually switched off except during scheduled syncing to save power. There are occassional situations when I would like to use 3G and I would like switch ...
21
votes
10answers
15k views

How does power usage for data over WiFi compare to data over 3G? (Ignore LTE for now)

If you have unlimited data over 3G so that cost is no option, which is more power efficient? Using the WiFi or 3G connection for data usage? Extending battery life being the goal