[Help] Battery drops weirdly. topic

hi guys,
I have a recent problem with my SM-p601 battery. Few days ago I have rooted my device with auto root, and then the battery started to drain INSTANTLY down in big steps like it turns from 80% to 20 % , from 90 to 15% or likewise. And it gives me different indications of battery percentage every time I restart my device. When I plug it to the charger, it starts to charge NORMALLY to 100% !!! I have just wiped all data and cache and installed a new firmware 4.4.2, but nothing changed and the problem still exists. Please help !



My device details in case they are needed:
Android Version: 4.4.2 official
Baseband Version: P601UBUCNE1
Kernel Version: 3.4.39-3554366
dpi@SWDD5919 #1
Build number: KOT49H.P601uBUCNL1

[Q] Power button weirdly causing random restart. Really need help ASAP topic

Hello all!
My Moto E is of lately causing a very weird problem. If I press the power button more than even 1.5 to 2 seconds (yeah, I measured it), the phone restarts. This problem was persistent when I had not rooted the phone, and even now after rooting with PA 4.6 beta5 ROM, the problem has become more grave. If I keep the button pressed even for half a second more after the Power Options are displayed, the phone restarts! I tried Factory Reset, Re-Flashing the ROM, but all in vain.
This is really a grave problem for me.
Please help.