This is a dedicated charging & connecting 2 in 1 cable for XBOX 360. When x360 controller connects to the rechargeable battery, it can last for approximately 30 hours in the case of full energy. The other side of the rechargeable link cable can connect the USB interface of the XBOX 360 console. You can play games while it is charging. When the console is shutdown, it can charge automatically so it si unnecessary to turn on the console when it is full of energy it will stop itself.