Xiaomi 4 Lite Gen2 BMS board replaces the battery management and protection assembly inside the scooter battery. The elongated electronic board has contact pads along its edges and is installed within the battery pack. It is a separate battery repair component. This is an original replacement part.

Xiaomi 4 Lite Gen2 BMS board for the battery assembly

The BMS forms part of the battery management system, so it must be selected for the specific battery version and contact arrangement. This board has a long profile with electronic components on one side and markings on the reverse.

• Compatibility: Xiaomi 4 Lite 2nd Gen battery assembly.
• Part type: battery BMS board.
• Board dimensions: approximately 246 × 64 mm.
• Contacts: pads positioned along the board edges.
• Package: 1 board.

Selecting the matching board

Compare the outline, contact positions, markings and mounting orientation with the board removed from the battery. Identify the battery version precisely: boards for other Xiaomi 4 or first-generation 4 Lite batteries may have a different construction.

A similar length or the BMS component name alone does not establish that all electrical connections match. The board must be selected with reference to the battery circuit arrangement and its existing connections.

Installation inside the battery

Replacement should be handled by a technician experienced in battery repairs. Assembly must retain the correct connection order, insulation and mounting arrangement for the specific battery construction.

New battery cells, a separate wiring harness and the battery case are not included. Check operation of the complete repaired battery assembly before closing it.