Not sure if this has been covered, but I got a 5800 10 days ago, and I've had to charge it every 36-48 hours? (using the ac-8x charger supplied in the box)
This is with minimal use, a few calls, a little bit of browsing, and getting used to the phone. On thursday I used my old ac-3x charger and it's now down to 3 bars. (3 days later)
Has anyone else had problems with the battery? I'm guessing I have a duff charger (I know I'm stating the obvious) as I'm sure the new batteries don't have memory like the old ones.