maybe got background apps running which consume batt faster while charging.
and look closely at the screen, is it totally dark or got pale background light. sometime got bug like this,
need restart.

and for latest kitkat 4.4.4 update
im very satisfied because previously got annoying problem with hang camera startup, overheat cam for video recording, sound volume bug (after end call, walkman sound not increase/muted) and last but not least, auto restart for unknown reason, but that accured just 3-4 times only.

thank god, all problem solved after updated

if ur phone still free of bugs, and not excited about kitkat,
still can wait

hey, does any1 tried playing FPS using PS gamepad?
how its respond?

just want to try blitz brigade & carmageddon
very hard controlling using screen

and yeah, my phone heat up & drain batt like no tomorrow
playing skyforce, an arcade jet fighter, for 1 hour can drain 30 % battery
wow