I fully charged the tablet Friday. It sat in its case til Sunday, at which point the battery was almost gone. The unit was in airplane mode. I use Timeriffic to keep everything shut off til I need it. Upon checking for what was eating the battery, Tw Launcher was the culprit. What could it possibly have been doing while it wasn't doing anything? This is odd, even for Android. I remember changing the launcher in earlier Android phones. Should I change this one too? I don't need or want live wallpaper or blinky lights and this problem is new. I rebooted.