【Battery Details】Rechargeable Li-ion battery Voltage: 21.6V Capacity: 4000mAh. Professional replacement for the Dyson V6 battery, offering longer runtime and excellent performance. No memory effect, can be charged or discharged as needed without loss of capacity. 【Fully Compatible】Compatible with Dyson V6 DC58 DC59 DC61 DC62 DC72 DC74 Absolute Animal Motorhead Slim SV03 SV04 SV05 SV06 SV07 SV09 595 650 770 880 handheld vacuum cleaner and works with the original V6 battery charger. 【High Performance】The upgraded 4.6Ah V6 battery offers long-lasting power and durability, delivers up to 30% more power than 3.0 batteries, holds a charge for up to 500 days, lossless performance, makes your process perfectly completed, the self-discharge is lower. 【Safety and Reliability】Intelligent protection against potential damage caused by overcharging, over-discharging, over-voltage, over-current, short circuit. The high-quality, fire-resistant construction ensures comprehensive protection for you