Hart 20v Battery Pinout Diagram 📢

Working with lithium-ion batteries requires strict adherence to safety protocols.

Critical fact: If you connect a HART battery to a non-OEM charger, the charger will see no ID signal and refuse to charge. You cannot bypass this by simply applying 21V to B+ and B- – most HART BMS boards will permanently lock the output (fuse blows or FET opens). Hart 20v Battery Pinout Diagram

If you have a multimeter and a Hart battery of unknown revision: Critical fact: If you connect a HART battery

Pro tip: Use a 1kΩ resistor between B+ and ID pin only if you’re building a simple discharge adapter. Never force charge without proper comms. Pro tip: Use a 1kΩ resistor between B+