Please use 18650 power lithium battery, with low internal resistance, same model with same parameters, Do not use ordinary lithium batteries for energy storage.Please test the voltage of a single 18650 battery, And charge a single battery to make the voltage of each 18650 battery the same. 18650 battery cell voltage should be above 4.1V.If the old battery is repaired, please test the voltage across each battery. If the voltage is different, charge each battery to the same voltage value.For Dyson V8 AbsoluteFor Dyson V8 AnimalFor Dyson V8 Animal ExclusiveColour: as shownMaterial: ABSPackage Contents:1 set * For Dyson V8 wireless vacuum cleaner battery coverOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.