Never run out of battery power when you are about to score the winning point.Save money and protect the environment by using the rechargeable battery.Battery can also be charged through any USB port, included the USB port on the xBox 360 console.Fits directly into the existing battery compartment.Initial charge time: 8 hours. Battery Output: DC 2.4V.Capacity: 3600 mAh. Color: gray.Package includes: Rechargeable battery and USB charging cable.Accessory ONLY, xBox 360 console and controllers are not included. Compatible With Microsoft: Xbox 360 / XBOX 360 Slim. California's Proposition 65 Warning: This product contains chemicals known to cause cancer, birth defects or other reproductive harm.