I got my 7520 in Feburary and my battery life has been ok mostly. However in the last 2 or 3 weeks I've noticed increasingly shorter battery life. By noon my battery level would be down to almost 50%. Well at 10:30 this morning my battery is already down to 13%. I usually charge it overnight and when I first got this BB I went through a couple of complete battery discharges as someone had recommended. I don't use the radio or phone much during the day. Does this sound like a bad battery or am I doing something wrong. I did recently install BB Messenger and Ramble but I have not used Ramble at all and have not used Messenger today.