). If this is blown, even a perfectly repaired circuit will not output power.

: Diagrams for temperature monitoring, BIOS/EC chips, and display interfaces like EDP Where to Find Verified Files

The BM5291 Ver 13 features a multi-rail architecture. The following checks were performed:

If you are referring to a specific "story" or project log from a hobbyist site (like Endless Sphere or DIY Solar Forum), please let me know. To help , could you clarify: Is BM5291 the model number of a specific BMS board or IC ?

: Cuts the load when any cell drops below roughly