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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5
votes
2answers
10k views

Google Services battery drain on Galaxy devices

Here are screenshots from my three Samsung Galaxy devices: Samsung Galaxy S3 (left) and Samsung Galaxy S4 (right; click images for larger variants) Samsung Galaxy Note 10.1 2014 (click image to ...
23
votes
3answers
27k views

What's the meaning of signal strength colors in battery usage screens?

The battery usage screen has an indicator for "Signal strength" that, instead of being blue/black like WiFi, has many colors: green, gray, yellow. What's their meaning?
5
votes
3answers
2k views

Does switching user accounts in Lollipop affect battery life or performance?

I recently updated my Moto G2 to Android Lollipop via OTA update. I've successfully installed the update(around 500mb i guess). I saw the new feature of adding new Guest and New user acccounts just ...
16
votes
6answers
32k views

Mediaserver using excessive CPU time and battery

I've got a Nexus 4 on OS version 4.2.1 that suddenly started to drain it's battery very quickly. When looking in the battery usage I see "Mediaserver"eating 60% of the battery over time, with several ...
15
votes
1answer
3k views

charging from power outlet or computer? to save battery lifetime

I realized that charging my HTC Desire (Android 2.1) takes longer if connected to computer compare to power outlet. Does it matter which method I use to charge in terms of battery life time?
12
votes
1answer
1k views

Which method of wireless tether uses the least amount of power? Bluetooth or Wifi?

If I'm going to wireless tehter to my Android phone what method drains the battery the least? Wifi or Bluetooth?
7
votes
5answers
16k views

Is there an app that will drain my battery?

Are there any apps that will specifically help to drain a battery down quickly? The scenario I would want to have this is if I want to quickly drain the battery so I can charge it fully again. Some ...
5
votes
3answers
4k views

How can I prevent my Desire HDs battery from draining overnight?

I've recently got the new HTC Desire HD, which has a poor battery to start with (1230 mAh), but in the last two weeks I've had several nights waking up with a dead battery. The first few nights, I ...
5
votes
1answer
1k views

Does a battery with more capacity last proportionally longer?

I recently bought a Galaxy S2 which came with a 1650mAh battery and in a near future the manufacturer will be offering another one with a 2000mAh. My question is: will it last 21% more than the ...
5
votes
1answer
4k views

How does the Android OS estimate remaining battery time?

Is it known how the Android OS estimates time to failure / remaining battery charge? I am doing a school project about battery estimation on mobile devices but have not been able to find any ...
4
votes
1answer
5k views

Get rid of 'battery-low' popup after some delay?

I'm using an Android phone (a Motorola Defy+ running CM9) with OsmAnd as a map solution mounted on my motorcycle (it just shows the map and a gpx-track as a driving hint). It's not connected to a ...
4
votes
3answers
445 views

What is the standard voltage and current levels for an android battery?

I am using Micromax Canvas Nitro A310; recently, I bought a new USB cable and it seems its not doing the job as required. My phone is not getting charged as it was before. Either it takes too long ...
3
votes
1answer
1k views

Is it possible to force enable the battery saver mode in Android Lollipop?

It is possible to automatically enable battery saver mode in Android 5.0 when the battery hits 5 or 15%. However sometimes it would be nice to enable this mode by hand. e.g. when the battery is still ...
2
votes
1answer
966 views

Better battery life by factory reset?

This is a bit odd. I thought I fairly well grokked how things worked, but this seems weird to me. I have an original Moto X. I've had it for almost two years now. It started off with Android 4.2 (...
10
votes
4answers
722 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 ...
9
votes
2answers
3k views

Turn off cellphone (SIM) radio

How do I turn the cellphone (SIM) radio on an Android phone? The radio consumes a lot of power (30-70%), especially when the phone is idle. Sometimes I only need to use other functions (e.g., clock, ...
7
votes
2answers
3k views

Am I overcharging my phone? [duplicate]

Possible Duplicate: Does constant charging harm my Android cellphone? I am using my Xperia Active for application development. Given that scenario, I obviously have the phone connected to the ...
6
votes
1answer
881 views

How much does Android use Wi-Fi for network discovery when not connected?

When I have Wi-Fi turned on, but not connected to any network, how much does Android use the Wi-Fi function? I'm asking this because apparently Wi-Fi activity uses considerable* amounts of battery. ...
4
votes
1answer
172 views

How can I monitor the device battery consumption?

I need information about which applications or hardware features discharge the battery. Built-in Android option for this doesn't fit because not all devices have it. Also it would be a great advantage ...
4
votes
1answer
2k views

Can anyone reccomend a 2g / 3g switching widget?

I've just got my new HTC Desire HD and I want to switch 3G on and off as required. I used to do this on my old HTC magic and got quite good battery life compared to some friends with the same phone. ...
3
votes
0answers
302 views

Why is a suspicious program draining my battery with GPS usage?

Phone : nexus 5 version 2013 Android version : 6.0 Kernel version : 3.4.0-g2aa165e Build number : MRA58N For the last few days, 10118 has been draining my phone's battery. It drains battery by using ...
3
votes
4answers
3k views

my samsung galaxy 2 battery is draining to fast!

I have an Samsung Galaxy S2 GT i9100. I have had it for quite a time, but today I noticed something strange: First my battery had not been charging while I was sleeping: when I woke up I had only ...
2
votes
2answers
524 views

What is trying to connect to the network?

When I'm not actively using the network, I usually turn off Wifi, Bluetooth, and Data. Since upgrading from Android 4.3 (stock) to 4.4 (OTA update from my carrier) I notice two things: Battery life ...
1
vote
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 ...
1
vote
3answers
4k views

Nexus 5 whole battery drained in a single night

I charged my phone to 100% before going to sleep. I used it for only few minutes and found out my phone was off in the morning because all the battery was drained. I charged it and saw battery stat ...
1
vote
1answer
3k views

How does charging battery in normal, speed and trickle affect battery life?

Battery doctor uses different stages of charging: speed; continuous and trickle (keep charging when the battery is full for some time) does this really extend battery life? and can an app change ...
7
votes
1answer
673 views

Is it normal for Android System to be the top battery user?

Over the past couple of days, the battery usage of my new phone has been as follows: 34% - Android System 28% - Cell Standby 21% - Phone idle 10% - Display 03% - Google Goggles 02% - ...
6
votes
1answer
992 views

How much battery does using live wallpapers drain?

I know they are unnecessary, but they look so cool!
5
votes
1answer
3k views

Should I disable mobile data while I'm connected to WiFi?

If WiFi is activated, the phone expends energy trying to find WiFi connections, even if I'm not using the internet. Is the same true for mobile data? Does the phone expend any energy trying to keep a ...
5
votes
1answer
4k views

Android 6.0 drains my Nexus 5 battery within an hour

So. This morning I received the OTA update for Android 6.0 on my Nexus 5. Previously had no problems with battery usage, but after installing the update my battery is drained within an hour, without ...
4
votes
1answer
5k views

Battery life cut in half recently - DrReadUsbStatus issue?

My regular uptime on Samsung Galaxy S2 was around 6 days. For the last couple of weeks it is down to less than 3 days. The change was instant, but I was hoping it would come back - it did not. Running ...
3
votes
1answer
664 views

Is there any known memory leak in Gingerbread 2.3.3 fixed by occasional reboot? Related to battery usage?

I notice that when I reboot my Samsung Captivate, it runs smoothly for about 2 or 3 days. After that, I notice that there is a lot more lag with various apps, and the launcher screen is more likely ...
3
votes
1answer
10k 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 (...
3
votes
3answers
433 views

How can I prevent the battery in my Nexus S from draining overnight?

I have a Google Nexus S and for the past 2-3 days whenever I go to sleep the battery drains completely overnight. I mean when I go to bed the charge on my phone is plus 90% but for the past 2 days it'...
3
votes
2answers
7k views

Galaxy S3 cell standby is eating my battery

My battery on my new S3 seems to be being eaten up by the cell standby using more than 50%. I appear to get a decent signal on the phone. Does anyone have any idea why this figure would be so high?
2
votes
3answers
663 views

Why Google play services not included in Doze mode

I'm using Nexus 5 and 6P, Android 6 having a feature called "Battery optimization mode" or Doze mode (in short). It is allowing apps not to run, if they aren't used to avoid battery consumption. ...
2
votes
2answers
560 views

Can I restrict Nexus 7 2013 LTE to 2G/3G, instead of just 2G?

In the settings on Google Nexus 7 2013 LTE, there is an option to restrict the device to 2G networks for better battery life, which makes it use 2.75G GSM EDGE. Why is there no option to do the same ...
2
votes
1answer
964 views

Even with WiFi turned off it is still the biggest battery drainer (S5 Mini)

I have a Samsung S5 Mini and today I noticed that even when WiFi is off, it is still the biggest battery drainer (oscillates between 20-23%). I also noticed that yesterday the battery drain was much ...
2
votes
1answer
1k views

Battery Sony Ericsson XPeria Mini Pro

I've a Sony Ericsson XPeria Mini Pro with Android 2.3.3. I noted that the battery ends really fast. I don't have enable GPS service, Mobile data, Bluetooth. Only phone and wifi. In less than two days ...
2
votes
2answers
588 views

Brightness and battery use

When I turn down the brightness of the screen on a Samsung Galaxy Mega am I lowering power consumption or increasing the opacity of the screen?
2
votes
3answers
281 views

Big battery usage

I have Galaxy s2 running android 4.1.2. My phone can eat near to 25% battery in 6h – and during this time I spend only ~5minutes on Facebook. I downloaded Wakeuplock and it shows that Google+ is ...
2
votes
1answer
1k views

How to disable Google Search?

Recently my phone started to lose charge faster. It just occurred to me to check Battery in Settings, and I saw that Google Search is responsible for 29%, Screen coming in second with 23%. I set up ...
1
vote
3answers
3k views

Battery Issues-Moto E

I am facing battery issues from days,the battery does not survive even a day even without using the internet. Tried uninstalling some apps but to no effect.It is happening 10 days after 4.4.4 kitkat ...
1
vote
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 ...
1
vote
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 ...
1
vote
1answer
1k 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 ...
1
vote
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"...
1
vote
0answers
2k views

Why does the Kernel and Android System/Android OS drain my battery?

3 hours since unplugging my phone, and at light usage it's at 61%. It is the kind of problem I've had with my previous phone, and I have with my current phone, often starting a few months in and ...
0
votes
4answers
5k views

Why is Youtube draining the battery and what could we do?

A friend of mine just asked me a nice question: His (stock) Samsung Galaxy S4's Youtube is draining his battery. He said, that he hasn't been in the app today, and this morning he had the phone ...
0
votes
1answer
233 views

Should I charge phone overnight or let battery down to a minimum?

For many times I found myself in a situation, that my battery charge was about 25-30% when I was going to sleep. Since I was always told to not let battery down below 20% (correct me, if that's wrong) ...