Battery 22.2V, 4000mAh, Lithium-ion no memory effects, you don’t need to worry about the battery damaging the machine. The battery is based on the original size and the function is same with the original battery.

Compatible with Dyson 22.2V Battery DC31,DC35 type B, DC44 Animal,DC45, DC31, DC31 Animal, DC34, DC35, DC35 Animal, DC35 Exclusive (Only Fit for Type B Screw-Fixing, Not for Type A).

Easy install and it fits perfectly. Cleaning up all the dog hair and whatever else was on the floor; Integrated charging indicator: Steady blue means charging, light off means charging completed. Flashing yellow means error occurred.

CE & RoHS certification, Tested by manufacturer to match and exceed OEM products specifications.