Features 1、Perfect Compatibility: Specifically designed to fit a variety of robotic vacuum cleaners including for Mi 1, 1S, for S55, S60, S65, S50, S51, S5, 1S, S6, this battery can seamlessly replace the original battery. 2、High Efficiency: Equipped with premium cell and a 5200mAh capacity, this lithium battery provides powerful and continuous power for the vacuum cleaner, ensuring smoother and efficient operating. 3、Fast and Convenient Charging: Supporting fast charging, this robot vacuum battery reduces waiting time and allows the vacuum cleaner to quickly return to its working state. 4、Fault Prevention: The battery provides multiple guards against short circuit, overcharging, overheating, reducing the risk of malfunctions and giving you peace of mind during use. 5、Wide Temperature Range: With a broad operating temperature range, this vacuum cleaner battery ensures optimal performance in various environmental conditions, maintaining excellent functionality. Specifications Item Type: Vacuum Cleaner Battery Material: Fiber Weight: Approx. 432.00g/15.24oz Battery Capacity: 5200mAh (shipped with pure battery) Product Size: Approx. 137x45x43mm/5.4x1.8x1.7in Package List 1 x Battery