A few weeks ago I decided to buy a battery, from China, off Ebay, for $3.19....delivered. Needless to say I wasn't expecting much. What I got was so much more though. The battery came in, I charged it up (in my spiffy new .99c charger from Ebay) put it in my phone and turned it on. An hour or two later I went to bed and left the phone on all night. I awoke to find it still had 92% left. I used the phone during the day to check e-mails and make/receive a couple of calls. I don't try to conserve power in any way. I have the brightness set as high as it will go, wifi, bluetooth, and even gps were left on all day. I run a live wallpaper (City at night) and my screen timeout is 2 minutes. I even used the color flashlight app for a good 15 minutes tonight at the zoo. So here I sit 26+ hours later and the battery is still at 28%. To say that I'm happy with my $3.19 battery is an understatement. I'm going to leave the phone on again tonight to see just how long I can get with this battery.