BRRLG8175 Li-ion Battery Shell BMS PCB – Roborock Housing

BRRLG8175 Li-ion Battery Shell BMS PCB — a compact BMS charging protection board and nesting lithium box housing designed for Xiaomi Mijia Roborock Sweep One to enable DIY battery repairs and rebuilds with reliable charging protection.

Features

• Compact BMS PCB for Li-ion cells — protects against overcharge, over-discharge and short circuit
• Designed to fit Xiaomi Mijia Roborock Sweep One battery housing
• Semi-manufactured DIY part: ideal for battery shell replacement and rebuild projects
• Durable PCB construction for stable, long-term performance
• Easy integration with existing battery nests and wiring

Technical Details

• Model: BRRLG8175 Li-ion Battery Shell BMS PCB
• Type: Vacuum cleaner parts — battery protection board
• Compatibility: Xiaomi Mijia Roborock Sweep One
• Contents: 1 x Li-ion Battery Shell BMS PCB (DIY semi-manufactured, no battery included)
• Chemical concern: None (PCB only)

Warning / Reminder

Handle Li-ion cell work only if experienced; ensure correct wiring and insulation. Not a complete battery pack — purchase cells and housing components separately.

Benefits

This BMS board restores charging protection and extends the life of rebuilt battery packs, solving common issues like premature cutouts or unsafe charging. It improves safety and user confidence when repairing Roborock Sweep One batteries, offering precision protection in a compact, easy-to-install package.

Perfect for DIY technicians, repair shops and makers rebuilding vacuum battery packs at home or in the workshop, backed by a 30-day satisfaction guarantee.

Ready to use in repair projects — add compatible Li-ion cells and housing to complete your pack. Buy now to restore safe charging and extend runtime; recommended for repairs, refurbishments and prototype builds. 30-day guarantee.