Ok, mine had 60% charge on it out of the box. So I charged it to 97% but then had to catch a plane. I played with it a LOT on the 5 hour plane ride, and in the taxi to the hotel, and basically all the time. I added lots of apps, took some pics including about 6 panaromas (cool!), personlized the screens and handcent sms and youmail. I finally killed the battery about 10 minutes ago, it had been about 12 hours since I took it off the charger. So yes, this phone can be taken down in a day but I imagine after a few days of getting everything just the way I like it, and ogling the screen for minutes at a time just to ogle it, I'll eventually make it to bedtime without having to charge it.