I'm on just 1 bar down since I powered it up for the first time about 21 hours ago. I've only had wi-fi on for about 3-4 hours of that time. No SIM card installed, so nothing consumed there. Turned off vibration for most stuff. Turned off GPS. For me the battery consumption seems on par with what I would expect, so I'm hopeful it'll all be OK when bugs have been sorted out.