Check the listing for details. 2 Pack Rechargeable 3600mAh Battery Pack For Xbox 360 Wireless Controller Black. Condition: New. Listed at 12.98 USD. Color: Black Package Included: 2* 3600mAh Rechargeable Battery Features: High capacity of 3600mAh Quick charge and overcharge protection Battery and cover combined design Specifications: Product Name: Microsoft Xbox 360 / Xbox 360 Slim Replacement Battery Color: Black Capacity: 3600mAh Battery Type: Ni-MH Compatible with: Microsoft Xbox 360 NOT compatible with: Microsoft Xbox, Xbox One Keep your Microsoft xBox 360 controller charged-up so you are always ready to strike the winning point Make sure you don't run out of battery before your big win by keep in an en extra, rechargeable Ni-MH battery on hand Best replacement for the original battery with comparable standby and talk time. Great bargain with excellent quality guaranteed Accessory ONLY, controller not included