After charging my tablet overnight. I found out that after I unplug the charger a few seconds later the tablet will crash ( battery level at 90%+). I cannot reboot it without plugging in the charger.
It works fine if I keep the charger on. But then I will lose the main purpose of a tablet(mobility).
I've updated it to jelly bean before the problem arise. An also i"ve tried to factory reset it after the problem, still the problem persist.