I've got the same problem, "Android OS" draining my battery.
Anyway to stop this ?
As a short term aid, rebooting the phone after it is removed from the charger seems to help. For me at least it seems to be an issue with the kernel staying awake after the charging lead is removed. Reading XDA it seems this issue is a Samsung kernel problem so we will have to sit tight and wait for the kitkat update.
Last edited: