Questions tagged [battery-life]

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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4
votes
1answer
3k views

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

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 ...
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2answers
2k views

Enable/disable Background Execution Limits for all apps

Official guide on Background Execution Limits (new feature introduced in Android 8 Oreo) has a note: Note: By default, these restrictions only apply to apps that target Android 8.0 (API level 26) ...
0
votes
1answer
598 views

Is there any way to mass background restrict app battery usage?

My Pixel 2 has been experiencing severe standby battery drain (last night it went from 95-30 while I slept), and I'm pretty sure it's one of my apps' faults since it doesn't happen when I reboot the ...
0
votes
0answers
63 views

How to disable sensors on-demand to reduce power consumption?

Nowadays, any Android device has a big sensor amount implemented. It is true that most of the sensors do not require a considerable amount of power for their operation. But the sum of the power ...
7
votes
5answers
960 views

Enabling GPS flag on android preferences: what is the battery impact?

Even if there are many questions regarding Android and GPS my doubt is really specific to the user level location settings. Supposing I've enabled the GPS settings, say from the Power Control widget, ...
0
votes
1answer
65 views

Is your Galaxy S7 running slow after 11/2018 T-Mobile update?

Several days after receiving this update my phone became sluggish to do anything. Simple things like: swiping to answer calls is taking 2-4 seconds, lighting up a screen when the call is incoming is ...
0
votes
2answers
9k 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. In the morning or at 100% I ...
1
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1answer
59 views

Battery shuts down at 25%

I've read that battery calibration apps are only a placebo effect and they do nothing. Is this true? What to do if your phone suddenly shuts down at 25%?
2
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1answer
998 views

Persistently or aggressively enabling Battery Saver

I love the Battery Saver feature. When I'm travelling or in other situations where reliable communication is more important than user experience, I want to always have it enabled, sometimes for days ...
3
votes
4answers
4k views

Relationship between CPU Usage and Battery Usage

I'm comparing the resource consumption of two Android Apps. App A uses accelerometer App B uses both accelerometer and gyroscope After reading these sensors, these apps does some processing on ...
0
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1answer
643 views

Cannot add gmail to unmonitored apps (battery usage) to get notifications in battery saving mode

I want to have instant Gmail notifications even in battery saving mode (which typically blocks apps from background CPU/network usage). I found these amazing instructions for Android 6, however when I ...
2
votes
3answers
4k 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 there is no effect. It is happening 10 days after 4.4.4 ...
1
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1answer
129 views

Change battery meter behavior

I heard that charging li-ion batteries to less voltage value heavily increases number of (charge-discharge) cycles, while decreasing phone work time(energy return from charge) only for a little. ...
1
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0answers
1k views

Galaxy Note 4 Battery Drain, Have Been Able to Narrow Cause Down to SD Card. Suggestions?

I've had my Galaxy Note 4 AT&T model for a little over a month now. I got it pre-owned, but even so it works great, almost as if brand new. With the exception of the battery life. I've noticed ...
7
votes
2answers
6k views

How can I tell what is really draining my battery?

I know that by going to Settings > About Phone > Battery Use, I can get some idea of the applications that are using up the most of my battery. I see things like "Cell standby", "Phone idle", ...
0
votes
1answer
2k views

Why is my battery life fluctuating?

I installed CM7 on my LG P500, and ever since the battery sometimes lasts 30 hours, sometimes for 8 hours, under the same usage and same power state (conservative). How can I fix this?
0
votes
1answer
46 views

Do Samsung batteries actually charge to 100% capacity?

My understanding on Li-on batteries is that they don't like to be charged to 100% capacity and that it can prematurely degrade the battery. Something to do with voltage increasing and heat at the last ...
189
votes
22answers
110k 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.
6
votes
3answers
44k views

Does 4G consume more battery than 3G if I don't use it for data?

Each generation of G consumes more battery [( 4G compared to 3G or 2G) or ( 3G compared to 2G) ] than the previous one when used for data, since more complex algorithms are required to process higher ...
2
votes
3answers
9k views

Screen uses 99% of battery

I have a Galaxy Ace S5830. I tried using many different Jelly Bean and KitKat ROMs, and with each one (clean installs, without additional apps) my battery behaves weird. When the screen is turned on, ...
1
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0answers
45 views

CPU throttling during Web browsing for battery preservation - counterproductive?

The power saving feature in Android (I'm mainly familiar with Samsung phones so this might not apply to all brands) throttles the CPU in order to save battery. If the phone is being used for Web ...
2
votes
1answer
9k views

Android smartphone battery suddenly drained twice as fast than usual

I own an Android smartphone that I'm very little using (even to phone!), so since I got it (about one year) I use to be notified for charging it only once every other day. (the only notable service ...
0
votes
1answer
34 views

How to reduce power consumption? - Honor 7

so I have an honor 7, had it over 2 years now. It has seen better days, I need a new phone however don't have the money as of yet. The phone must always be connect to a charger, using a fast charging ...
0
votes
1answer
26 views

Nexus 9 WiFi tablet permanently in awake state

I've recently been observing heavy battery drain during idle periods on my Nexus 9 tablet. The key here appears to be the awake status of the tablet. The left hand side of the picture shows a solid ...
1
vote
1answer
1k views

Difference between system files charging_enabled vs battery_charging_enabled

I have a oneplus2 and I need to know the difference between charging_enabled vs battery_charging_enabled files present in /sys/class/power_supply/battery I am using an app called Battery Charge Limit ...
0
votes
1answer
480 views

Prevent disable power saving while charging [root]

When I plug my phone to solar cell cpu optimisation turns off and the speed of discharge increases severalfold. How to prevent cpu always on when phone charging? Phone: Rooted Samsung Galaxy S III ...
1
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0answers
2k views

alcatel onetouch FierceXL battery is draining too fast

I've only had my onetouch for 3 weeks now and all of a sudden the battery started draining rapidly, even when I plug it into the charger, and charging very slowly. If i use the phone at all when its ...
0
votes
0answers
67 views

Restart charge from powerbank on rootet phone

A have rooted android 4.3 device and charge it from power bank. Charging stop after 100% and not continue after phone discharged until i unplug and plug again usb connector or push butoon on powerbank....
1
vote
1answer
2k views

Do android phones have hardware chips for encryption? If it's software only, then what is the performance/battery impact?

Do android phones have hardware support for the OOTB full phone encryption or is it entirely done in software? If there are phones which have hardware support for encryption then where could I find a ...
84
votes
4answers
304k views

Battery Life and First Time Charging on Li-ion Batteries. Myth? [closed]

"Ok you bought a brand new mobile phone with brand new battery, after checking its working ok kindly switch it off and charge it fully (100%) then start using it. IT WILL INCREASE YOUR BATTERY LIFE.", ...
1
vote
1answer
1k views

Thousands of NlpWakeLock entries eating through my battery when on WiFi, but Location Services are off

I get several thousand entries a day of the NlpWakeLock under Google Play Services (I'm using Wakelock Detector Free). It's draining my battery significantly. I have found it occurs when I'm connected ...
0
votes
1answer
69 views

Battery of Nexus 7 started draining

I've had my Nexus 7 2013 for a few months. A few weeks ago, for some reason the battery started draining - it was empty after one day or so. I the reinstalled whole tablet, and after that everything ...
4
votes
1answer
5k views

Power Saving Option in Samsung Galaxy S3

I see there is a Power Saving switch in the Galaxy S3. What makes the Galaxy S3 save power when it is turned on? Is there a difference this and using JuiceDefender? Can using JuiceDefender and ...
0
votes
0answers
1k views

Why “unmonitored apps”? How to monitor app's power usage without restricting it?

I want to allow a certain application to run on background even in power saving mode (because I need timely notifications). I guess the only (?) way to do it on Android 7 is: Settings -> Device ...
1
vote
1answer
106 views

Why is my phone's battery draining automatically?

I am using a Samsung Galaxy Core prime for about 3 years. The problem is that firstly, it gets charged very slowly (takes 7-8 hours to get fully charged) after that battery backup is fine, nothing ...
0
votes
4answers
6k 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 ...
0
votes
1answer
184 views

Interchanging battery with a higher capacity battery

My Redmi 1s has a battery capacity 2050mAh (BM41). And the upgrade of the phone is Redmi 2 with capacity 2200mAh(BM44). Can I use this battery if it fits in my device? Will it creates any software ...
1
vote
1answer
56 views

How long will battery last, assuming no usage

Short question: How do I find how long my battery will last, taking into account the current settings (Airplane mode, Battery saver, etc) I have enabled, and assuming I do not use it? Detailed ...
0
votes
1answer
76 views

Does the average cellphone battery protect against overcharging or deep discharging?

It's known that Lithium Ion batteries are damaged by overcharging or deep discharging. While I've seen an Xposed module which prevents the phone from charging the battery above 90%, I'm wondering if ...
4
votes
1answer
4k 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 ...
1
vote
1answer
48 views
5
votes
4answers
10k views

How to break in a new cell phone battery?

Whats the best way to break in a new cell phone battery? I just got a replacement battery for my Motorola Droid and so far through 2 cycles it is barely lasting a few hours.
1
vote
0answers
412 views

Understanding Excessive Battery Drain on Note 8 (Nougat 7.1.1)

I'm suffering from excessive battery drains on Note 8, Nougat 7.1.1. The battery drain is excessive when on idle mode/when the phone is asleep. I have installed BetterBatteryStats (gave it all ...
1
vote
0answers
21 views

presumably faulty battery level reading in Android 6.0 on an LG G4

I have been recently experiencing battery level drops, and to my understanding my observations may have not been documented in the same way earlier by other users. The phenomenon is similar to what ...
1
vote
0answers
317 views

Phone only turns on when it's plugged in but then works normally

The problem regards a cheap 5.1-based Android phone, manufactured by a company named Manta. A few days ago it randomly shut off on its own and it was impossible to turn it on because it got stuck on ...
1
vote
1answer
218 views

Change battery percentage at which phone turns off

I'm trying to completely discharge an LG G2 D800 with Android 4.1; however, the phone always shuts down at 2%, so it's impossible for me to go down until the absolute zero. How could I change this ...
0
votes
1answer
24 views

Moto G4 Play Churning Through Batteries

I have a G4 Play which I used the @#(* out of for nearly a year, until I dropped it into the toilet for 2 or 3 seconds before getting it out. The battery and SIM fell out and I put it in rice for the ...
2
votes
1answer
1k views

Battery capacity wear-down, and its relationship to charging practices

As an Android user with many devices I'm usually not very concerned about battery, but Nexus 6P with Snapdragon 810 is somewhat notorious for its short battery life, so it makes me start to actually ...
1
vote
2answers
172 views

Significant battery drop/reboot, but only in cold weather (+5°C/+41°F) with camera - expected behaviour or battery defect?

Disclaimer: This is not a duplicate, I've looked at these questions but none are applicable(temperature) or provide an adequate answer. Recently I've realized that my 15 month old LG G4 seems to have ...
1
vote
2answers
59 views

How does the S flip case work?

I know that the magnets turn the phone on and off, but what about the time/date display on the case? Does the case somehow use the phone's battery to display those? If so, does it not drain the ...

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