I have had this phone for a little over 4 days now and it is by far the best smart phone on battery life that I have ever owned. Yesterday was the best day yet, I pulled the phone off the charger at 7am yesterday and forgot to put it back on the charger before I crashed out last night. This morn I was woken up to its alarm clock, got ready, headed out to work and the last 20% warning ding'd at 6:45 this morning. My use through out the day consisted of a few short phone calls, the wifi was on all day, I played an hours worth of home run derby, I watched a few you tube videos, surfed a little net, and I have all my accounts synced up to the Motorola widgets (facebook, myspace, yahoo, hotmail, google, and twitter). I also have a live wallpaper running, lots of widgets on my home screens, and I am running the automatic battery profile ( default factory setting). Oh and my phone service is not that great at my house. In the end I my battery never hit the "red" and was a little over 24 hours of battery life before I put it on the charger. I have read threads about poor battery performance and I cant imagine why my battery performance is so good, and with such a huge screen. With that amount of use, I would only get about 12 hours of battery life from my Droid 1.