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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1
vote
2answers
443 views

Shorcut on desktop that enables packet data and 3G

In order to save battery (it works a lot!), 99% of the time I disable packet data and I use only 2G networks, because I don't want the phone to go on internet / use data. But sometimes I want to use ...
1
vote
0answers
89 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 ...
0
votes
1answer
624 views

Charging Nexus 5 to 100% [duplicate]

Is it wrong to fully charge your android phone in general to 100% will it hurt battery life? and is it also to drain your battery to below 20% will it also hurt the battery life?
1
vote
1answer
767 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 ...
7
votes
4answers
41k views

mm-qcamera-daemon causing massive battery drain

Recently, mm-qcamera-daemon has been causing massive battery drain on my Nexus 5, and making it become rather warm. At the same time, the camera appears to be locked, meaning opening the default ...
4
votes
1answer
4k 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 ...
2
votes
1answer
59 views

How to measure the charge left in a dying battery?

This question is not relative to a specific phone model, even though I will cite my P1000. My P1000 is 3 years old, and it is often suddenly turning off (no shutdown sequence, just goes dead) out of ...
0
votes
1answer
50 views

Android: Default Battery Percentage Level for individual services to switch off

We all know Android OS switches off services one by one when the battery reaches critical level. But is there any fixed battery level to cut down individual services. For example, Bluetooth will be ...
4
votes
4answers
26k views

Does Cyanogenmod reduce battery life?

My galaxy mini was running GB 2.3.6. I recently rooted my phone and installed CM 7.2. Now it looks like my battery is getting drained a little quicker than before. From what I have heard CM increases ...
0
votes
1answer
57 views

“Battery Usage” page irrelevant

I have been doing battle with the battery vampires, apparently similar to a lot of people on here. I have a Samsung Droid Charge (SCH-i510), and service with Verizon. I have noticed my battery life ...
2
votes
1answer
2k views

Why is my battery low only a few hours after charging?

Twice recently I have charged my Samsung Galaxy Ace at night and when the phone indicates it's fully charged I unplug the charger only to be woken a couple of hours later thinking I have a text come ...
0
votes
0answers
92 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
votes
1answer
797 views

Battery Status Indicator Error?

Okay so I have a very interesting story to tell.... Here is what happens... I charge my phone at night, wake up in the morning, pull it off the charger, about 9-10pm it drops to about 15%, which ...
0
votes
1answer
603 views

Samsung galaxy note 2 android 4.3 problems

Is there a solution for the battery drain problem that the note 2 suffers after the 4.3 update? In my case the drain is most noticeable when the wifi is on. When its off battery lasts a good while ...
0
votes
1answer
1k views

What is the effect of “power saving mode”?

Android OS from ICS and above has a "power saver mode" by default (I own a samsung) What does this mode actually do? If it reduces clock speed of cpu, then by how much? How does it attain this power ...
2
votes
1answer
5k views

Turn off Wi-Fi Power Saving?

Is there a way to turn off wi-fi power saving mode on Android, i.e. have the wi-fi radio stay on at all times? I'd rather have a stable, low-latency wi-fi connection and slightly less battery life ...
3
votes
3answers
428 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 ...
2
votes
0answers
83 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
2answers
451 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
2answers
316 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 ...
8
votes
3answers
5k views

Do battery saver apps really work? Is it possible to save battery programmatically?

There are numerous apps in the Google Play store claiming to double or triple the battery life. Is it just a myth? Or can they really? If they really do save some power, why doesn't Android do it by ...
14
votes
5answers
24k 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 ...
0
votes
2answers
70 views

is more battery-dispendious shutting down or leave 3g on?

I know that many apps (like messaging apps eg whatsapp or facebook) every time like 30 seconds, ask the server for push notifications. I know that 3g has many state, when downloading data the consume ...
0
votes
1answer
1k views

Droid Mini charging and battery problem

My Droid mini have a strange problem, when I am charging the phone with some USB cables it charges very slowly and phone battery discharging very fast. but when I charge with original cable it works ...
0
votes
2answers
366 views

Why newer android versions drain the battery faster?

I've got an Android phone whose stock Android version is 2.1. I've tried several times to install some custom ROMs (mostly Cyanogenmod based) with Android 2.2 and 2.3. The full charged battery lasts: ...
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).
0
votes
5answers
2k views

Is it normal for Wi-Fi to always be on?

I have a Nexus 4 running CyanogenMod 10.2.1.-mako. While trying to figure out why my battery life seems to be shorter than usual, I have noticed that my Wi-Fi is constantly on. Shouldn't the Wi-Fi ...
5
votes
3answers
5k views

Setting the lock screen timeout

On my Nexus 4, when I press the power button to access the lock screen (say, to check the time), the screen doesn't turn itself off for 30 seconds. This seems like an excessive delay. On my previous ...
2
votes
0answers
136 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 ...
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
1answer
664 views

Batty drain issue on CM10.2.1-yuga / Sony Xperia Z - NFC Service using over 50%

I've recently put CyanogenMod CM10.2.1-yuga on my Xperia Z and I've noticed the NFC server is using an insane amount of the battery. Even after disabling the service in the App section, the ...
2
votes
4answers
1k views

Screen uses 99% of battery

I have Galaxy Ace S5830. I tried using many different Jelly Bean and KitKat roms, and with each one (clean installs, without additional apss) my battery behaves weird. When screen is turned on, even ...
0
votes
0answers
43 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
votes
1answer
113 views

Is less than 2 hours of battery life normal for Galaxy S2 with

Screen darker than | 5 times darker than normally possible thanks to Screen Filter app, removed more than 70 system apps (I have less than 40 now) with the rest except absolutely essential being ...
0
votes
1answer
879 views

Which android devices have optimized encryption hardware?

I've been using a Nexus 5 for a while and using FS encryption. Apple's iOS Security document states that: Every iOS device has a dedicated AES 256 crypto engine built into the DMA path between ...
0
votes
2answers
239 views

Does the Google Authenticator app negatively impact a fully charged device

I have the Google Authenticator installed on my phone. I notice the codes are generated constantly. It appears the app is running constantly in the background. Does this app has a major impact on a ...
2
votes
3answers
250 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
2answers
397 views

Does 'Easy Battery Saver' work?

I ran some tests in my Moto G and it was quite disappointing. The first hour was dedicated to measure the performance in 'Intelligent Power Saving Mode', followed by an hour of the app uninstalled. ...
0
votes
1answer
150 views

Unbelievable fast battery discharge on some games

I've submitted an issue about my phone crashing: Issue Link which nobody here was able to help understand and resolve. Now I have better observations: after starting a game with almost full battery, ...
5
votes
3answers
11k views

Will rooting my phone improve its battery life?

I've had an HTC Desire HD with HTC Sense for about a year and I'm quite happy, except for the battery life. After upgrading to the latest version, it lasts about 24 hours with moderate/low usage. I ...
1
vote
0answers
360 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 ...
0
votes
2answers
303 views

Moto X Battery Question

I'm new to android and the Moto X. (iPhone 4s previously. don't judge.) I purchased my Moto X a couple days ago (2/15/14) and overall I'm very happy. The battery life has me concerned though. ...
10
votes
3answers
10k views

How frequently is it okay to let the battery discharge fully or as low as possible?

I know that atleast once or twice a month a full battery drain and then a 100% charge helps increase the battery life and also gives more accurate battery readings. I was wondering, how frequently is ...
4
votes
2answers
264 views

Does Gingerbread use extra battery power to make calls when the phone has poor signal?

Since I got this phone (Galaxy S, originally on Eclair, then Froyo) and switched network provider, I've had major problems with the signal at home, and call quality as a result. Following the upgrade ...
2
votes
2answers
444 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 ...
3
votes
2answers
30k views

Does charging a phone with another phone's charger affect it in any way? [duplicate]

I have a Samsung S4 and because its charger is short I charge it with a Samsung Wonder charger. I am afraid that it can damage the battery or something. Will it?
9
votes
2answers
2k 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, ...
2
votes
1answer
524 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 ...
4
votes
1answer
419 views

Don't charge to 100% when always-on wall-plugged-in

I want to use a Google Nexus phone for an always-on wall-plugged-in WiFi tethering access station. It occurred to me that if I just do it like this, then I'm risking ruining the battery within a ...
0
votes
1answer
174 views

Nexus 7 rooting and battery life

I rooted my new nexus 7 the other day using the Nexus Root Toolkit. Before rooting I was able to get about a full day out of a charge and still be at about 20-30% but now my battery seems to drain ...