I would strongly recommend getting an extended battery for the PN-820 also. The thin battery that comes with it may be fine for you but the extended battery allows you to do a lot more with your phone and not having to worry about the battery going dead. You can find them on ebay for really cheap. I recently got one for a friend for 11 bucks with shipping. They are kind of hard to find but if you look a lot, you'll find one. The cool thing is that the extended battery doesn't make it as fat as you might think. Hope this helps.