... I think it's lasting LONGER than my Rezound which had a 2800 extended battery. I am starting to realize to turn off some of the real time syncing. Once I did that I pretty much made it into the afternoon if I don't go nuts on videos and downloads. No smart phone has ever lasted all work day for me when I use it as I typically do. Moderate browser, facebook, some youtube, some streaming audio and maybe some downloads. Today it lasted almost 5 hours before dropping to around 10%. But today was a pretty heavy use day. Here are some screen shots. I took the first few screen shots when I was in one of the areas in the building where it sometimes drops to 3G. A few hrs later (and after some recharging) I was approaching 12 gigs on my data usage. I did download a lot today. So far it hasn't gone dead before lunch. I sometimes could hardly get to lunchtime with my Rezound and that was with the extended battery. Some of the areas at work are pretty hard to get good signal. So I'm sure it causes more battery drain being in here than outside.