$9.99
Neutop Replacement Side Brush, Compatible with Roborock S8, S8+, S8 Pro Ultra, Q Revo, Q5, Q7, Q8 Max, S7 Max Ultra, S7 MaxV, S6, S6 Pure, S5, S5 Max, S4, E4, E20, E25, E35, S50, Robot Vacuum, 9-pack.Amazon$37.99
MULS 5600mAh Battery Replacement for Vacuum Robotics Roborock S5 S6 S7 S50 S51 S52 S55 T4 T6 T7 T60 T61 T65 E4 E20 E25 E35 C10 CT10 Robot Cleaners 14.4VAmazon$40.99
Tenberly 5200mAh 14.4V NiMH Vacuum Cleaner Battery for Xiaomi Roborock S5 S7 S6 S51 S50 S52 S53 S55 T6 T7 T61 T65 C10 E4 Xiaowa CT10 E20 E35 SeriesAmazon