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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0
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0answers
11 views

Is auto-sync really the biggest battery killer? [duplicate]

I have been digging the archives for eternity to find that Location Services and Auto-sync (assuming we ignored other factors such as Bluetooth etc -- because my focus is mainly about auto sync) are ...
1
vote
1answer
49 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, ...
0
votes
1answer
4k views

Phone Radio uses 80% of my battery

I have GSam Battery Monitor, and it says that my Phone Radio is using about 80% of my battery. Why is this so high? I usually unplug my phone in the morning at 8AM, and I usually need to plug it back ...
1
vote
2answers
93 views

What to do after replacing the phone's battery?

I have a Nexus 5 (1.5yo; I know, it's old but still worthy!) and the boy was heavily suffering from short battery discharges. I'm a phone heavy user so I figured out I had depleted the battery's life, ...
2
votes
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 ...
0
votes
0answers
180 views

Bizarre new battery behavior on Samsung Galaxy S3

After my old battery puffed up, it was time to buy a new one for my Galaxy S3 (GT-I9300) on stock ROM. After I got my new battery, I put it in and turned on the phone as I had some urgent messages to ...
2
votes
1answer
75 views

Get battery usage data at finer resolution

The biggest battery usage culprits on my phone, according to both the battery settings page and to GSam Battery Monitor, are always "Android System" and "Android OS." I also have "Watchdog" installed, ...
0
votes
1answer
28 views

Does boot take up any significant power?

If I wanted to conserve energy, and needed to check on my phone once every while, would turning the phone off and on every 30 seconds actually conserve more power than if I had it on all the time? ...
1
vote
1answer
56 views

WiFi only working while charging the phone

I am being experiencing this very strange issue in the last couple days. I have a Samsung Galaxy S3 Mini with an (unofficial) build of Cyanogenmod 11. Is has been working fine for the last year with ...
2
votes
1answer
83 views

Power consumption of audio over OTG cable

I recently found that if I connect a USB pair of speaker/microphone using OTG cable to a phone, it becomes the audio device by default, and I can actually play audio over that. It happens that the USB ...
1
vote
1answer
101 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.
1
vote
1answer
2k views

Notification LED's generic power consumption

I know that all phones got different hardware, and that leads uses just a little power, but: What if I set my LED notification frequency to high (like the light will pulse faster)? How much would ...
2
votes
3answers
127 views

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? Does it lowers its frequency or change its governor to powersave? Or does CPU ...
2
votes
2answers
12k views

Stop SD card from constantly unmounting due to underpowered

I had problems with constant unmounting of my SD card from phone when it was not on charger. The problem was with powering off some power when disabling display to save energy, but this power was ...
23
votes
7answers
3k views

Is power consumed from battery to run the phone when charging?

I want to download torrents while keeping the device plugged to charge. My device is made by Samsung. Is the power consumed from charger, or battery, to power the device when charging? Will my ...
4
votes
1answer
5k views

Power Efficiency: Network mode 4G LTE vs 3G GSM/WCDMA?

Which network mode is more power efficient: LTE 4G or GSM 3G? I assume using a 4G network uses more power even if you don't use the data connection, as from the little I understand about mobile ...
5
votes
3answers
249 views

Why does my phone automatically power off when there is still 2% battery?

My Moto X Play on Android 6.0 would automatically power off when the battery displays 2% remaining. When I try to turn it back on, I would get a "low battery" symbol, which means my phone didn't ...
0
votes
1answer
4k views

MOTO E battery drops suddenly to 0%

My moto E phone is not even a month old and already i'm having a HUGE problem with it. I charge my phone to full battery, sometimes during a whole afternoon or night. Then in the morning or at 100% i ...
0
votes
1answer
87 views

Android logcat which app spams logcat

On my Oneplus Two android phone I recently updated to android 6.0. Since then my battery life has decreased drastically. Plugged into my computer I saw that a app is spamming the logcat even when the ...
11
votes
2answers
20k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, Is there a downside to using it?
3
votes
0answers
88 views

Powersave governor VS Marshmallow Doze

After searching on Google and XDA for an answer (which I didn't find), I decided to pose this as a question here. So, I guess that the majority of us know about the so-called big difference between ...
7
votes
1answer
602 views

Battery Stats Are Vastly Incorrect

After updating to 6.0.1 (MMB29K) from 6.0.0 (MRA58R) I have come to face a very odd and never seen before issue. My battery stats are wildly wrong. My stats show 4k% or higher and no battery stat ...
4
votes
3answers
446 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 ...
0
votes
1answer
40 views

Unexpected system app battery usages

Today, I have noticed that, an application named kworker/u:4 using phone's battery. I haven't seen this app before on battery usage section. Also, I have noticed kswapd0 application using battery, ...
0
votes
0answers
116 views

Where is the “Process Stats” screen in Marshmallow?

In earlier versions of Android, there was a screen called "Process Stats" inside the "Developer options". But it seems to be missing on Android Marshmallow. Does anyone know if its been moved or ...
5
votes
4answers
10k views

Android Antivirus Software (solution and battery life relevance)

Is there a security solution for Android that's vastly regarded as "the best" one at the moment or is it like in the PC world where there are 3-4 which are "the best"? Also, what should I expect to ...
1
vote
0answers
82 views

Galaxy S6 Battery Drop

I have a Samsung Galaxy S6, Stock ROM, running Android 5.1.1. Last night, as I was browsing on my phone before I fell asleep, my battery dropped from 19% to 15% in an instant, engaging power save ...
0
votes
1answer
151 views

My Redmi 2 Prime's battery usage is inconsistent after OS reinstalls

Recently after I updated my phone to MIUI7 the battery increased from 9 hours internet browsing backup to 10 hours and 4 minutes for Internet Browsing backup. But after I tried to roll back the OS to ...
1
vote
1answer
27 views

What percentage of screen power usage is healthy?

Using GSam, the screen uses about 50% of power compared to apps. Is this normal/healthy?
10
votes
1answer
6k views

Battery percentages per app nowhere near total

when I look at my Nexus 5 with android 5.1. battery screen, I can see something like this: Screenshots (click images for larger variants) Sum of all per-app percentages in list is 10. However as ...
0
votes
0answers
72 views

Android up-gradation to 5.1 causes lots of issues with Moto G(1st Gen)

Yesterday I upgraded OS to 5.1 lolipop from 5.0.1, Since then I started to face many issues with my phone (Moto G-1st gen.) SMS not receiving Contact list seems empty (completely non-functional (...
13
votes
3answers
409 views

Prevent complete charging?

I'm looking for a way to prevent my phone from completely charging every time it is connected to my computer. I want to reduce the battery's capacity loss, as it is non-replaceable, and it seems to me ...
11
votes
3answers
13k 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 ...
1
vote
1answer
1k views

Fast Charging by Qualcomm 3.0- impact on battery?

I am thinking of buying HTC one A9 My only concern is with fast charging . I have read this thread How does fast charging work? and understood the downside is mainly on battery life. Accepted answer ...
4
votes
1answer
2k views

Turn screen off without Android sleeping

Is there any way to quickly toggle the screen off without making Android sleep? For example, I sometimes like to use the Calm app when I sleep. But it keeps the screen on all the time. When I just ...
0
votes
3answers
2k views

App showing battery charge based on its voltage

I have a xt894 with Android 4.3. I bought an extended 3800mAh battery (Mugen) but the droid doesnt recognize it properly. I tested a couple of battery manager apps, but I dint find what I am ...
1
vote
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 ...
0
votes
0answers
141 views

Doze not activating, Nexus 5, Android 6.01

I decided to try out Doze last night. My phone (Nexus 5) was charged to 100%, then I unplugged it shortly before going to bed. This morning, the battery was down to 58%. Therefore, it seems that Doze ...
0
votes
2answers
4k views

Samsung Galaxy S3 Battery dies extremely fast

My SGS3 had an extremely nice and pretty long battery life until a week ago I used a music download app to download some music. After this I get common notifications like this. And it's scary cause it'...
1
vote
0answers
33 views

Show “battery so far” chart instead of the “projected battery life” chart in Marshmallow

After the update to Marshmallow, I notice the battery level chart is different that I had it with K. In KitKat, the chart was "last charge until now" long, but in Marshmallow it is "last charge until ...
3
votes
2answers
11k views

How can I boot my Nexus S with a broken power button? Can only boot to “Do not turn off target”

My Nexus S power button has stopped working and Samsung will not honor the warranty. The farthest I've gotten is to the Downloading screen with the yellow work ahead sign, that says "Do not turn off ...
3
votes
1answer
138 views

Android definition of charge cycle?

Battery life is measured in number of charge-discharge cycles. Charge Cycle wiki says Apple Inc. clarifies that a charge cycle means using all the battery's capacity, but not necessarily by full ...
2
votes
3answers
3k 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 ...
1
vote
1answer
94 views

How to fix sudden charge drop in stand by?

I have an android device running Lollipop 5.1 (the brand is local in my country) which has a battery draining problem in stand by mode. It drains about 10% of battery every hour or so without ...
0
votes
1answer
51 views

Strange battery graph

A friend's Motorola Moto G (titan) on Android 5.0.2 (Stock) shows this really weird battery graph. Does anyone know what's going on here or how to fix it?
156
votes
22answers
101k views

What can I do to increase battery life on my Android device?

What can I do to get better battery life on my Droid? Battery life seems awful. Less than 15 hours or so on normal usage.
2
votes
1answer
72 views

Initial Charge Problems

I bought my Android last January and I forgot to charge it for 8 hours. What will be the effect on my Android and battery life? ( battery type is Lithium Polymer)
1
vote
0answers
601 views

“Battery too low to update automatically” message

My phone is less than a year old, and I really don't use it that heavily, but the battery life is terrible at times (not always). Sometimes, it will drain to single-digits (percentage-wise), and then ...
4
votes
2answers
33k views

Can you actually determine the mAh of a battery?

You can skip the story part but for better reference, please read it: A Little Story My phone claims it has a battery of 4000 mAh that lasts for 3 days. I got the phone, really psyched because of ...
1
vote
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 ...