Got it as a gift last month amazing tablet . Noticed this yesterday that battery seems to last for not too long . Today was the same used it for about 2 hours in total (30 min online gaming , 90 min of watching a video) battery was down to 51 % ! Brightness is auto most the time but for the video I had it set to 4 and WiFi remains on all the time while I use it . using DU Battery saver's healthy charge option when ever I charge it . what seems to be the issue ? Looked around and its the kitkat update that seems to be causing some battery issues but did the update the same day I first switched it on . Got me worried is it some battery issue , or I might have over charged it ? Last couple of days I have been using it while it charged , could that have damaged it and it does get hot too but never more than 37 C . so PLEASE help me out ?