That would suck, my phone on lowest brightness uses 60+% of the battery but I can get 4-6 hours depending on my usage. I got 5 and 2 minutes yesterday and I'm on pace for 5 and a half or about that today. I would recommend you download Juice Defender, just started using it and it increased my screen time by about an hour.Uh usually 3-5 bars. And also I will download it. Too late to trade back phone, so if its defective im going to scream.
I tried wakelock detector. Nothing important is going on in the backround...
I also turned on system process cpu wakelock and android system is 239 times. Whoa is that bad?