A battery management system (BMS) for small vehicles mainly 36V and 48V (golf carts & quads).
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README.md

README.md

SombreroBms

SombreroBMS is a battery management system board and software for small electric vehicles and conversions. Mainly 36V and 48V battery packs. Currently in development.

Planed features:

  • Lithium phosphate battery packs.
  • Protection relay to connect to a power relays like a Gigavac 250A.
  • State of charge updated by a current sensor during the discharge.
  • Custom gauge connected with one wire + Gnd serial communication.
  • Monitoring from a portable computer using a serial communication over USB.
  • Passive balancing (possibility for a heavy duty version for first balancing use).
  • Undervoltage events count per battery + worst value recording.
  • Powered from the battery pack.
  • 10 to 18 batteries.

You can follow the development at www.sombrerobms.com