Battery Management Module

Battery Charge Management Daughter Board

Board Layout

The present battery management daughter board circuitry includes a TP4056 battery charge module, the battery voltage measurement circuit described elsewhere on this website and switching circuitry, also described elsewhere on this website, to manage power usage when connected to an external source. The full circuitry is illustrated in the schematic below.

Battery Charge Management Schematic

Battery Charge Manager Schematic

This circuitry was moved off the original BCS-A4a boards, to a daughter board, to facilitate the reuse of components during prototyping. The use of daughter boards for specific, common functions also simplifies the subsequent design of host PCBs (cf.10068-BCS-A4a vs 10068-BMS-A4a).

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Battery Charge Manager Daughter Board PCB (Top) Battery Charge Manager Daughter Board PCB (Bottom)
Battery Charge Manager Daughter Board PCB [v1.1]
PDF Battery Charge Manager Eagle CAD Files [27 KB]
PDF Battery Charge Manager CAM Files [83 KB]
26-07-2026