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33 votes

How can I find app name by UID?

Prerequisites: set up adb in a PC, connect the device to the PC, launch a shell on the PC to enter adb commands. Note: Replace UID wherever it occurs in the following commands with the UID you're ...
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30 votes
Accepted

Don't charge the battery but use connected power to run the phone

Yes, it's possible if your device is rooted running Advanced Charging Controller-Acc Magisk module and device kernel supports (see currently known list at the end of answer. For more join telegram ) ...
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  • 37.9k
21 votes
Accepted

Ideal charging / discharging percentage for maximum battery life?

In the comments to linked answer, it was brought out that batteries are not allowed to stay at 100% charge since it is harmful to the battery and the battery % rapidly drops to around 90% as explained ...
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  • 37.9k
21 votes

How to limit charging to a user defined limit?

There now is a hardware+app solution for that, it's called Chargie. https://chargie.org Basically, Chargie is a Bluetooth switch that is linked to an app on your phone. You set the desired level of ...
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18 votes

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

Of course your device requires power to run – whether you've set it for charging or not. Question is: Does it use more power than it gets by charging? Which depends on multiple factors: Your "power ...
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  • 89.1k
17 votes

Can Android app repair battery's bad cell?

It's a scam. Android app cannot access physical battery directly. The battery file is just an interface for Android with value provided by the battery's sensor. Again, a sensor only reads data; it ...
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  • 12.4k
14 votes
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Fast Charging by Qualcomm 3.0- impact on battery?

Short Answer From battery health point of view, Qualcomm Quick Charge 3.0 is comparatively better than Qualcomm Quick Charge 2.0, since power used for charging is better controlled, resulting in ...
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  • 37.9k
13 votes

How does the App "Battery Repair" work?

MYTHBUSTED I installed this app yesterday with some uncertainty and it detected (and fixed) a number of problems. I then found this thread which made my suspicions even more so. Today I ran the app ...
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  • 131
13 votes
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Bought a new battery, do I need to calibrate it?

No Calibration of batteries (Li Ion or Li Po, used in almost all mobile devices) is a myth You can start using it straight away and charge as you normally did with earlier batteries This post will ...
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  • 37.9k
12 votes
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How does fast-charge work?

Fast Charging can be achieved in two ways Hardware based Charging Qualcomm- Qualcomm Quick Charge 2.0 and Qualcomm quick Charge 3.0. Also see Fast Charging by Qualcomm 3.0- impact on battery?. This ...
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  • 37.9k
12 votes
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WiFi drains battery even if it's off

Okay, to address the points here: Marshmallow doesn't have the option of Scanning Always Available as it was in Lollipop. So, what to do? Marshmallow still has these options, only now they are ...
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12 votes
Accepted

Automatically limit (stop) battery charging at a given percentage

Okay.. Got it :) The first thing to note is on Honor 6, my previous device , there was a single file I could play around with to stop charging automatically On Moto X play, there are two distinct ...
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  • 37.9k
12 votes

How to limit charging to a user defined limit?

Many ways - all of course, need root. Without root, it's not possible and you can only be notified either by automation or using an app as suggested in Chang's answer Battery Charge Limit from Play ...
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  • 37.9k
10 votes

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

Tests done to arrive at the answer posted below were correct but the interpretation of results was erroneous on my part. This was validated by two sources including Battery University and based on the ...
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  • 37.9k
9 votes
Accepted

How to measure battery capacity (mAh)?

Motorola Droid 4 XT894 has 1785mAh battery with 2% tolerance i.e 1735mAh actual battery capacity. Your seller seems to have fooled you. Also it doesn't seem like the seller put up the battery ...
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  • 3,098
9 votes

How to get battery status in terminal?

Query the system service battery (possibly requires root access) dumpsys battery Output would be like Current Battery Service state: AC powered: false USB powered: true Wireless powered: ...
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  • 23.5k
8 votes
Accepted

Is battery consumption linear?

Li Ion battery discharge is not strictly linear, (unlike a capacitor ). This ensures available power is utilised till the end of battery charge But it is fairly linear, more so at lower loads as can ...
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  • 37.9k
8 votes
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Using Android phone without battery

AFAIK, no. The fundamental reason is usage and the design that evolved based on it- mobile phone, as the name suggests, is meant to be used whenever and wherever, with periodic charging, unlike ...
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  • 37.9k
8 votes
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How to tame "Phone Idle" battery drain on unrooted device?

How to nail Phone Idle battery drain is the question, but being unrooted device, it calls for some efforts. Finding the culprit apps isn't as easy as it is on rooted devices but is possible using adb ...
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  • 37.9k
7 votes

Strange WiFi battery usage on Marshmallow Nexus 5

There is a known issue on Nexus 5/6 with Marshmallow and wifi. This wifi drain has been noted by many users, me included. http://forum.xda-developers.com/google-nexus-5/help/wifi-plaguing-android-...
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  • 171
7 votes

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

Firstly one needs to understand C-rate or charge rate. Quoting from the linked article C-rate is a measure that governs at what current a battery is charged and discharged. At 1C, a battery rated 1,...
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  • 37.9k
7 votes
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What does Discharging means on battery?

Discharging is the opposite of charging. When you charge some electric component, such as a battery, you are storing potential electric energy in it. When you discharge that battery, you are ...
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  • 4,014
7 votes

How to limit charging to a user defined limit?

Accu​Battery can notify you when the battery charge reaches a certain level. It won't stop the charging, unfortunately, but it's still worth a try. :)
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  • 17.2k
6 votes

Can Android app repair battery's bad cell?

I can say %99,9 of all apps that claim to fix battery, get you longer battery life, better CPU usage, better RAM management, are completely useless wastes of battery, CPU and RAM usage. That app is ...
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  • 2,629
6 votes

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

Yes. Phone does use power from battery when recharging. Although thats something which would more likely depend on how phone is designed, so it may not always be true... but most phones are this way. ...
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6 votes

Bought a new battery, do I need to calibrate it?

You don't need a calibration app for that. Just fully charge the battery to 100% (in one run), let it run down to below the 20% mark, the recharge it to 100% (again in one run without interception) – ...
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  • 89.1k
6 votes
Accepted

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

Prowler answers your first question well: "Why does this happen" -> Prevents data corruption. To answer your question "How can this behavior be overridden?" You can try: setprop status.battery....
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6 votes
Accepted

Battery Popup at 25%

This is caused by the Peel Remote app. I deleted this app and it stopped.
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6 votes

What does the charge counter in battery indicates?

I checked the Android source and the value shows your remaining battery capacity in microampere-hours. BATTERY_PROPERTY_CHARGE_COUNTER Added in API level 21 public static final int ...
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  • 2,377
6 votes
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What is the fastest way to shutdown unrooted Android phone?

In fact without removing battery it's not possible to shut down a device completely in order to avoid the loss that could possibly occur due to short circuit caused by water. Let's have a brief look ...
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