Well I have had my Infuse for nearly 30 days now. So far battery life has been great. With semi-moderate usage I could squeeze 24 hrs out of the thing if I really tried. So for the last few days it has quickly been getting worse. Yesterday I got about 12hrs w/ pretty light use and with a short charge in between til dead, then today with about 7hrs of light use the phone just went from about 60% battery to stone dead in the matter of an hour with no usage. It was also pretty warm after it died. I run a task manager right on my home screen and absolutely nothing was running. Probably gonna go switch it out tonight before my 30 days it up. I hope this is a fluke though as I really like it. A friend at work also has had to return his and get another already bc of a battery issue. Anybody else have an experience like this?