Specifications: Cell Type: Lithium-Ion (Li-Ion) Battery Capacity: 4.8Ah (fully compatible with your current vacuum) Battery Voltage: 22.2V/21.6V Features: Charging at any time without memory effect, Integrated microchip prevents overcharging & lengthens battery life. No memory effect. Can be charged or discharged as needed without loss of capacity Integrated charging indicator: 3 indicators, when you charge the battery, the remaining power or the state of charge is displayed, each light represents 33%. 30% one indicator flashing. More than 30% one indicator lights, and one flashing, More than 60% two indicator lights, one flash. Light off means charging completed. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Highest quality standards, Products are CE certified, tested by manufacturers to match OEM products, long-lasting performance, and durability. Perfect for the original Dyson charger. DC31 Type A battery Replaces the following battery types: 917083-01, 17083-2811, 18172-01-04, 17083-4211 Battery suitable for the following tool models: ("Ctrl + F"): For Dyson Handheld Vacuum Cleaner DC 30 , DC31, DC31 Animal, DC31 Animal Exclusive Dyson DC34 DC44 (Not Fit Type B, DC44 MK2) Package Included: 1 x Dyson Replacement Battery Type A