Battery Status problem I recently updated my Note 8.0 Wifi from 4.1.2 to android 4.4.2, and shortly after that rooted it (But kept the stock 4.4.2, NO custom ROMs or anything...). Of course, as I knew, the battery consumption was probably going to be a bit higher that 4.1.2... and it was. 

But one day i left my tablet to charge for a while (around an hour and a half) and hoped that it will charge from 25% to 100% for that time. But when woke the screen what I saw was not normal... the battery had charged only to 60%. I was worried, as I thought that it might be a battery problem, but then I turned off the device (my mom recommended me to do so) and it showed that big green battery indicator at 100%. 

I was relieved, as I thought that it might be just a one time problem, and as I rebooted the device it showed 100% again. But my worries didn't end there, as this problem has now occurred at least 5-6 times. 

Is it a battery problem, or a battery indication problem, and how should I fix it?
You have to calibrate your battery. 

Go to Play Store and install Battery Calibration from NèMa. 

Then follow in app instructions to calibrate your battery....  :)