It will keep on disconnecting after about 5 minutes of me reconnecting sometimes less. I have just recently replaced the batteries and it says it has full battery anyway.
edit: The time is random as I have seen from playing today. sometimes it will stay connected for an hour sometime 2 minutes. I am not using a rechargeable battery pack, it is a regular xbox controller, it is about a year old now. Also it only seems to disconnect after I start using it. after a while it will be fine. If I leave the controller alone it does not disconnect. It also will disconnect is I move it about to much.
Best Answer
This happened to me just get a new battery pack the one you have is probably loose or just get a new controler if you have two controlers switch battery packs