More safety: 4000mAh high capacity Li-ion battery provides longer service life, built-in microprocessor protects against battery overload and overheating. No memory effect. Can be charged or discharged as needed without loss of capacity
Certified: The dyson vacuum parts battery are CE certified and high capacity for longer running time.The dyson vacuum battery replacement tested by the manufacture. Although not the original battery, but a professional dyson replacement battery
Professional Customer Service: 30 days money back and 12 months warranty. Any question about the battery, or if you are not satisfied with the battery for any reason. Please don't hesitate to contact us. Always at your service