Flylinktech 22.2v Battery Replacement For Dyson DC31 DC34 DC35,DC44(Fit Type i,NOT Fit Type B or DC44 MK2) Animal Exclusive 91708301 917083-01 Handheld Vacuum Cleaner Battery Type: Li-ion, Voltage: 22.2V, Capacity: 2000mAh.All batteries have past FCC certification Replacement Battery,Not Original!!Fit for Dyson DC31 DC34 DC35 (except DC 31 34 35 type B)917083-01 91708301 Handheld Vacuum Cleaner.Please check the connecter of your original battery. It's type i, not type ii). Compatible with Dyson 22.2v Handheld Vacuum Cleaner. Kindly Note: DO NOT Fit DC34 Animal, Not fit the Part #: 17083-04, NOT fit Dyson Battery Pack 6-Cell (Type B). Keep the battery Clean before charge,store it in a clean, dry, cool place away from heat and metal objects. Don't leave the battery dormant for long periods of time,We recommend using the battery at least once every two to three weeks.Ni-Cd, Ni-MH and Li-ion batteries will self-discharge during storage,remember to recharge the batteries before. Please follow the battery's guidlines to use it with correct charger.Any problem about the product,please feel free to contact us first.