Brand: Xiaomi Part No: BRR-2P4S-5200S Fit Model: Mi Robo, Mijia Roborock S50, Mijia Roborock S51, Millet Sweeper, Roborock S5, Roborock S5 Max, Roborock S50, Roborock S51, Roborock S55, Roborock S552, Roborock S552-00, Roborock S6, Roborock S6 Max, Roborock S6 Pure, Roborock S60, Roborock S65, Roborock S7, Roborock S70, Roborock S75, Roborock Sweep One S50, Roborock Sweep One S51, Roborock Sweep One S55, Roborock T60, Roborock T61, Roborock T65 Volts:14.4 Type:Li-ion Capacity: 5200mAh / 74.88Wh Color: Blue; Dimension:135.60 x 38.00 x 37.40mm; GrossWeight: 547.5 NetWeight: 367.5