Came from BB1.1 Nextheme to the first build of 2.2 and had a little less battery life with 2.2. Then i updated to the newest build of 2.2 and my battery life went down the drain. Unplugged my phone at 6am, by 9am the battery is already at 80%..keep in mind i did not use the phone AT ALL, except for sending 1 txt, didnt even turn the screen on more than once. by like 6pm my battery is at 15% and prompts me to charge it. I ran p3's and chevy's kernels and did not notice any difference. I went back to the previous version of Froyo (FRFxxx) and my battery life is back to respectable, but im still yearning the battery life i had when using BB1.1. Im probably going to restore back in a couple of days if this battery issue causes me headaches. I can wait it out for a better build.