OK. lets go the other way. how fast can you burn through a battery?

On my E90 I get multiple days battery life. BUT, if I'm listening to podcasts (LCG Jukebox is a notorious batt. Hog) over Bluetooth while browsing the web, and recording GPS points, I can drain a battery in 3-4 hours.

Shall we see who can drain a battery fastest, and how they did it?