Product Description Size selection1PCS/2PCS Battery Specification: Output Voltage: 3.0V Max Charging Voltage: DC 5.5V Battery Capacity: 1200mAh Protection: Over-Charging, Over-Discharging, Over-Heating and Short-Circuiting. Compatible With: Xbox one, Xbox one s, Xbox one x controller Note: 1.In the game, there will be a pop-up indication when battery is low. 2.The TV screen will indicate the charging connection and remaining battery capacity. Description: 1.[Universal compatibility]: This Xbox One battery is compatible with Xbox One S / Xbox One X / Xbox One Elite / Xbox One Controller. 2.[LED display]: USB cable built-in LED display, which indicate the charge status. When the charger is connected to the power source, these two lights flicker alternately. The red light indicates the charging process and the light turns green when it is fully charged. 3.[Rechargeable and durable]: This 1200mAh Ni-MH Xbox One controller battery can be charged about 2000 times, which is environmentally friendly and helps you save money. 4. [Faster charger]: Charges under 4 hours, but you can play dozens of hours. It's the ideal battery that will never damage your Xbox controller.