Maximalpower PTB DYS21.6 21.6-Volt Vacuum Rechargeable Replacement Battery for Dyson DC16 Root 6 Cordless Rechargeable replacement battery for Dyson DC16 Root 6 Cordless, DC16 Animal and DC16 Issey Miyake Exclusive bagels handheld vacuum cleaners Compatible part number: BP01, BP-01, DC16, DC-16, 12097, 912433-01, 912433-03, 912433-04 100-Percent Compatible with original manufacturer equipments and chargers Voltage: 21.6V, Capacity: 1500mAh, Chemistry: Li-ion 1 year limited warranty