Feature: 1. Plug And Play: Controller battery pack attaches securely to the battery cover and is designed specifically for Xbox One series controllers. Simply plug the battery pack in and it's ready to use straight away. It is a perfect replacement for regular AA batteries. 2. Suitable Models: Rechargeable controller battery pack is suitable for Xbox One One S One X Elite controller. There is a clear LED indicator with a red light when charging and a green light when full. 3. Battery Capacity: Controller battery pack is made of NiMH with a capacity of 400 mAh and upgraded with a longer battery life protection chip, giving it a cycle life of over 1400 cycles. 4. Fast Charging: Rechargeable controller battery pack has a built in overvoltage, short circuit, and overcurrent protection system to ensure safe overnight charging, and can be fully charged within 1 hour, giving you 4 to 5 hours of gaming time. 5. Charging While Playing: Controller battery pack provides an 80cm / 31.5in C type charging cable that can be directly connected to the controller with 5V input voltage. Due to the NiMH battery safety and charging protection chip, playing while charging will not damage the battery and controller. Specification: Item Type: Rechargeable Controller Battery Pack Material: ABS Battery: Polymer Lithium Ion Battery (Matching) Capacity: 1 x 400mAh Input Port: Micro USB Cable Length: Approx. 80cm / 31.5in Applicable: for Xbox One S X Elite Controller. Package List: 1 x Battery1 x Charging Cable1 x Instruction Manual Note: Manual measurement, please allow slight error.