Increase your shooting capacity with this powerful Genuine Canon LP-E19Lithium-ion rechargeable battery for the Canon EOS 1D X Mark II digital camera.The Battery Pack also communicates with this camera so that you can check the remaining charge, shutter count, and recharge performance in the camera’s power source info screen. The LP-E19 is a high-capacity (2750 mAh) battery, offering approximately 10% larger capacity than the LP-E4N. Requires Battery Charger LC-E19 for charging.