Dyson Dc31 Dc-31 917083-01 91708301 Handheld Vacuum Cleaner Replacement Battery for Dyson Dc31 Dc-31 917083-01 91708301 Handheld Vacuum Cleaner Replacement Battery Type: Li-ion, Voltage: 22.2v Capacity: 1500mah Safeguard features against incorrect voltage, short circuit, internal overheating.l. Certified, tested by manufacturer to match and/or exceed specifications of OEM products. Sold exclusively by BatteryJack inc - 2 YEAR WARRANTY