Energup 21.6V 3000mAh Li-ion Replacement Battery for Dyson V8 Absolute Cord-Free Vacuum Handheld Vacuum Cleaner This battery is the replacement for Dyson cordless vacuum V8 series, Battery type: Lithium-ion. Voltage: 21.6v. Capacity: 3000 mAh This replacement battery is compatible with dyson animal vacuum series v8, dyson v8 absolute, v8 animal , v8 fluffy. Performance is comfirmed to equal to original dyson v8 batteries and fit dyson v8 chargers(asin: B071G4KD6Z) Made of premium 18650 lithium battery cells,no memory effect. 3000mAh high capacity runs your vacuum 40% longer than others. a little bit heavier ( 420grams each) but still not increase user fatigue compare to the original batteries Battery holds a charge for up to 500 days;Integrated microchip prevents overcharging & lengthens battery life 30 days money back,12 months limited warranty.Any problems,please contact via your order or email us service01@energup.cn 100% Brand NEW! High Quality! High quality replacement battery Voltage: 21.6v, Capacity:3000mAh Color: Grey Battery Cells Type: 6-Cell Li-ion This  Replacement Battery is Designed for Dyson Vacuum Cleaner V8. It is a  kind of Li-on Rechargeable battery,you can carry it anywhere anytime,  convenient to use.And it has no memory effect. Can be charged or  discharged as needed without loss of capacity. The functions are the  same as the OEM battery Uses the highest quality cells, safe with  rapid-charge technology while providing overcharge and overdischarge  protection to increase the life of the battery Our replacement battery comes with some power, when you receive at once, please first to discharge and then fully charge it Before you charge the battery, please let battery cool down, and then charge it, thats helpful to battery life span When you have finished using the battery, remove the battery from the  tool, clean and place it in a relatively dry, cool place When you  decide not to use the battery within ten days, clean it up and put it  in the packing box. The storage time should not exceed 20 days. It is  recommended that the use cycle be 15 to 25 days long