XFUNY(TM) Dual Double Charging Station Quick Charge Dock Kit& Battery Pack (1 Charging Dock Station+ 2 Rechargable Battery+1 Charging Cable)For Microsoft XBox 360 Controller-White Accessory ONLY. Black is avaliable, see ASIN B00L4R9Q0I LED light indicator shows the batteries charging status. Save money and protect the environment by using the rechargeable battery. Charges up to two Xbox 360 Rechargeable Battery Packs simultaneously. Never run out of battery power when you are about to score the winning point