【Battery Feature】: Battery type: Lithium-ion; Capacity: 4000mAh Real Capacity; Voltage: 21.6v no memory effects; Certified: CE, FCC, PSE, RoHS. Made with high quality cells and last 45% longer duration than originals.

【Fully Compatible with Dyson V8】: Compatible with Dyson V8 Animal, V8 Absolute, V8 Motorhead, V8 Fluffy, Dyson V8 SV10 967834-02 96783402 Vacuum Cleaner.The battery is based on the original size and the function is same with the original battery.

【4.0Ah Higher Capacity】: 4.0Ah battery has a difference from others, not only improved the capacity, but also in the performance, providing up to 20% more power and holds a charge 2X longer than 2.0 batteries.

【Easy to Install & Charge】: Easy install and it fits perfectly. Keep your Dyson cleaning up all the dog hair and whatever else was on the floor;Steady blue means charging, Flashing yellow means error occurred. LED indicator communication charging status: 1st light flashing = under 30% power, 2nd light flashing = over 30% power, 3rd indicator light flashing = over 60% power. Light off means charging completed .

【Better than OEM Battery】: These are actually lighter than the OEM batteries.Gives longer life; 30 days money back, 24h customer service.