Hi, I was wondering if anyone had any good places to look to find official Black colored Microsoft xbox 360 rechargeable battery packs at a decent price. I'm trying to avoid the Nyko, or other 3rd party brands. It seems like I can only find it paired with the play & charge kit for around $20. Would like to buy just the new battery packs by themselves for a little cheaper. It has been a real struggle to try and find anything decently priced.