I recently got a 8330 Curve and was having problems with the battery draining quickly. My daughter got the same phone the same day and is not having any battery issues. I believe I have solved my battery issue with the help of a great tech at the local Sprint store. I did not know that once I paired my bluetooth with the phone, it left bluetooth active and constantly searching for the bluetooth device. I have now turned the bluetooth off under the options setting. Since I have beeen searching the forums for answers to this issue, and not seen the problem of bluetooth listed, I thought I would post this in case someone else has this issue and can perhaps benefit from it.