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7

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 and it detected zero problems, not surprising since the battery presumably got no new problems overnight. Out of curiosity I set the date to a month in advance ...


4

This website has a good page on the information: http://nexus7.wonderhowto.com/how-to/unlock-android-ls-hidden-battery-percentage-icon-status-bar-0155876/ But if you want a quick and dirty way to enable this, you can just use: adb shell content insert --uri content://settings/system --bind name:s:status_bar_show_battery_percent --bind value:i:1 followed ...


4

The two most likely causes: The battery could be dead. Lithium-ion batteries (as well as other types of rechargeable batteries) wear down over time. Even sitting on a shelf they eventually decay, but they decay faster the more you use them, and the more they're exposed to extreme heat, cold, and humidity. The socket on the phone has a loose connection. ...


4

Those percentages are from apps that use Android functions instead of their own modules (to save time/space/compatibility). The battery report bundles all battery usage from those Android functions and puts it into those two entries (depending on function). You can install an app like Wakelock Detector to see what exactly is using your battery the most in ...


3

That Nokia code is a myth, it doesn't provide you with any more power, it actually does more harm than good if you are low on battery because it activates the better voice codec (which consumes MORE battery). However, on Android you have this feature called Battery saver. Here's my settings screen for this function on a LG phone (accessed by going to ...


3

yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Ohm's law tells us the relation between current, voltage, and resistance: I = V / R (current = voltage / resistance) Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term ...


3

There are several apps in the Play Store that can list which applications use specific permissions. One that I use is Permission Friendly Apps by androidsoft.org https://play.google.com/store/apps/details?id=org.androidsoft.app.permission It requires no permissions itself so it's safe to use. Once you install it, you can look through the built in views ...


3

Never let it run down below 10% if you can help it. Running down to "absolute zero" harms your battery (and might even render it inoperable – which is why most devices shut-down before reaching that point). Modern LiIo batteries don't suffer from "memory effect", so ideally you'd plug-in a charger whenever possible: "trickle-charging" doesn't hurt them, low ...


2

The reason your android device draws less power from your USB connection than from a wall adapter is because of the USB specification. This can be side-stepped by shorting the data wires in in the USB cable, which will switch the phone or tablet into wall mode where it can draw the full available current. The amount of current available will vary ...


2

Wife had a somewhat similar issue. I went into recovery mode and formatted the cache and it solved her problem. To get into recovery mode it is usually Hold volume up + power, let go of power once the phone vibrates but keep holding volume up.


2

To expand on @RossC's comment, doing this yourself is quite easy if you are confident and comfortable with device disassembly, and have the correct tools. There are tutorials on how to safely and correctly replace this: iFixIt: https://www.ifixit.com/Guide/Motorola+Moto+X+Battery+Replacement/16974 ETradeSupply video: ...


2

It's understandable that your battery life will decrease when you run 4.4 on an older device like the S2. But that is strange. Try identifying the process like the other users suggested. I would also suggest Greenify, an app that can put processes and apps into automatic hibernation, decreasing their CPU toll.


2

If you are rooted, I would recommend downloading Better Battery Stats (or Wakelock Detector) from the Google Play Store, and finding the name of the 'mad' processes. If you aren't rooted, I recommend you root as other apps can't access battery stats as of Android OS version 4.4.


2

It might be worthwhile to invest in a charge only cable. I use one for my tablet at home and in my car. The quality of the usb cable will also make a difference. Cables do go bad. It sounds like you have ruled out all the other options so this might be worth trying.


2

You can try Greenify it freezes the app when you are not explicitly using it. There is an experimental feature to make it work without root but I didn't try it since my phone is rooted. There is also Disable Service that can disable single services. It requires root access.


2

The Settings > Battery menu is a cumulative history that gets reset only when you re-charge the battery to 100%. That means all of the usage history is retained through the charge cycle (which includes any partial re-charges). The closed apps' prior battery usage (as a percentage of the total charge used since a full re-charge) should gradually decline as ...


2

I suggest you look at the app Tasker. With Tasker you are able to literally automate your whole phone. There are also many tutorials covering the of Tasker and what you can do with it (change settings and launch apps based on events, location, time and other variables) As with many similar applications, this one needs root for many functions.


2

Android is automatically keeping Wi-Fi on while the phone is sleeping (Keep Wi-Fi on during sleep) and always scans for available networks (Scanning always available). They must be keeping it on. Try disabling them from Settings > Wi-Fi > Advanced.


1

Yes, it can. GSM and later phone protocols automatically adjust the phone's transmit power according to the strength of the signal it gets from the cell tower. It's just like how, if you're talking to someone and you can't hear them very well (because they're a long way away, or in a noisy environment), you'll tend to talk louder or shout, but if you can ...


1

It is normal. It could have been because your daughter was playing a game on the phone, or just taking up a lot of processing power. Also, having one's hands on the back of the phone also does not help. I've had this issue with multiple devices when playing games specifically.


1

Should be an hardware issue. In my case was the oxidation of the motherboard cause by the sweat cuase i kept the phone on my arms while I was running.


1

adb shell content insert --uri content://settings/system --bind name:s:status_bar_show_battery_percent --bind value:i:1 adb reboot Screenshot of Battery percent for Kitkat (click image for larger variant)


1

You can be 99.9% sure the touchscreen is fine. Battery wasn't damaged too. If the touchscreen still behaves erroneously after unplugging, then rubbing it with a soft cloth should help. This is a common issue with cheap chargers. It indicates that charger may not be safe to use with any device - it may catch fire or explode. Prolonged use of such chargers ...


1

I have Xperia Z3 running KitKat & can turn off battery percentage: Settings > Personalisation > Status Bar Icons > Battery Percentage. I know your phone is a different model/brand, but it's worth a try.


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I was losing hope of finding this on my Sony Xperia Z2 Tablet which runs Android 4.4.4, but finally I did. On my device it's under Settings -> Device -> Personalisation -> Status bar icons. Hope this helps you find it on your Samsung device as well.


1

This was a boggle for me as well, but I found it if click on battery, then the display at the top and then display at the bottom once more and finally about half way down you have display battery percentage.


1

With regards to the screenshot above try at the bottom of the list of apps under battery, if not try under settings > display and might be there somewhere


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Go to settings>>>battery>>>scroll down and uncheck the "Display Battery Percentage" option.


1

Battery percentage is used by users to charge the device based on the percentage(if the charge <25 % then charge the device till 100% and if not less then 25 % then do not charge in order to extend your battery life) The below steps are common for all the Android devices with version greater then Android 4.1(jelly bean) to the present Android 4.4 ...



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