【Battery Details】Rechargeable Li-ion Voltage: 21.6V Capacity: 4000mAh. Professional replacement for Dyson V6 battery, provides 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 for original V6 battery charger. 【High Performance】Upgraded 4.6Ah V6 battery provides long-lasting performance and durability, delivering up to 30% more power than 3.0 batteries, holds a charge for up to 500 days, fade-free power, makes your process perfectly finished, self-discharge is lower. 【Safety and Reliability】Intelligent protection against potential damage caused by overcharging, Over-discharge, over-voltage, over-current, short circuit. With high-quality and fire-resistant construction, ensure complete protection for you and your devices. Be