[sanmanc]

I use my Pre heavily but I keep it charging while at work. I usually have WeatherNow, facebook chat, yahoo, and windows live all running along with Pandora or AccuRadio. Plus I'm getting email and texts most of the day. I can easily kill my battery in two hours if I don't charge it. I have a vehicle charger as well. On the weekends it will pretty much last all day since I don't use it as heavily.