Specifications High-concerned chemical:None Nominal Capacity:6800mAh Weight:500g Voltage:14.4V Size:135*40*40mm Application:Vacuum Cleaner,Electric Sweeper,Robot Model Number:For Xiaomi Roborock S50 Replacement Battery Type:Li-Ion Brand Name:Aleaivy Origin:Mainland China Certification:CE Capacity:6800mAh Vacuum Part Type:Replacement Batteries Shipping:Efficient / fast / safe+track number Compatible:For Xiaomi Roborock S50 S51 S52 S53 S55 S60 S4 S5 S6 S7 Full Series 14.4V 6500mAh Li-ion Battery for Xiaomi Battery My Robot Battery for Xiaomi Mijia Roborock S50 S51 Robot Vacuum Cleaner 14.4V 6500mAh Roborock S50 Replacement Battery for Battery Specifications: Battery Voltage: 14.4 V Capacity: 6800mAh Battery Type: Li-ion Condition: 100% new 14.4V 6800mAh Li-Ion Replacement Battery The battery is compatible with the following models: Suitable for Xiaomi Mijia, Xiaowa and Roborock Robot Vacuum Cleaner: Mijia 1st generation, Mijia 2nd generation Roborock S50, Roborock S51, Roborock S52, Roborock S55, Roborock S4/S5/S5 MAX, Roborock T4, Roborock T6, Roborock T7, Roborock T60, Roborock T61, Roborock T65 compatible Xiaomi Mijia Roborock S50 S51 Warm advice: 1. The new battery will only be partially charged for safety in transportation and require full charge before use, after 2-3 times regular use (charge/discharge), the battery can be fully activated and achieve optimal performance. 2. If you do not use it for a long time, the battery will self-discharge, charge completely before using it, if the battery is inactive, charge every 2-3 months to avoid irreversible loss of capacity caused by self-discharge. 3. Store the battery in a dry, clean and cool environment, away from heat sources and metal objects.