N-EL15B Li-ion Battery for Nikon Z6, Z7, 1V1, D500, D600, D610, D750, D800, D810, D810A, D850, D7000, D7100, D7200, D7500.Battery Specifications - Energy Storage Capacity: 2200mAh / Voltage: 7.0V / Hour: 15.4W, Chemistry: Li-ion - New fully dismantled chip works exactly like the original. Free memory for maximum performance - No memory impact whatsoever so you can charge the battery at any time - Extremely long recording