Thank you for viewing. [Compatible Dyson Battery Models] Compatible with Dyson V10, Dyson SV12, Dyson V10 Fluffy, Dyson V10 Absolute, Dyson V10 Animalpro, and Dyson V10 Motorhead. [Excellent Safety] Uses Li-po batteries, ensuring high safety. Features overcharge protection, over-discharge protection, overvoltage protection, overcurrent protection, short-circuit protection, and temperature abnormality protection. It also has an automatic stop safety function when charging is complete, a remaining power LED display, and 6 safety features for peace of mind. Furthermore, the battery product is PSE certified and meets safety standards. [Long Usage Time] With a 3500mAh battery, it can be used for approximately 50 minutes on a full charge, providing sufficient continuous operating time. When the current exceeds the limit, it automatically stops output, extending the battery life. Compared to the original battery, it ensures the same work efficiency and can be used for a longer time. [High-Brightness Battery Charging LED Light] This product makes charging and removing the battery more convenient and safe. Blue LED 1 flashes: Power ≤30%. Blue LED 1 is always on, LED 2 slowly flashes: Power ≤70%. Blue LEDs 1-2 are always on, LED 3 slowly flashes: Power ≤100%. Blue LEDs 1-3 are all on: Fully charged. Red lamp flashes: Battery is under current/voltage/short-circuit protection. If the battery temperature is too high, please leave it for about 20 minutes before charging. Also, LEDs 1-3 are all on: Discharge ≤100%. LEDs 1-2 are always on, LED 3 is off: Discharge ≤70%. LED 1 is always on, LEDs 2-3 are off: Discharge ≤30%. LED 1 flashes: Low battery. If there is a battery abnormality, please contact the seller.