Hart 20v Battery Pinout Diagram Jun 2026

The Hart 20V battery typically has 5 pins, which are configured as follows:

A signal pin used for communication between the battery and the device. Internal Balance Pins (C1–C4) Hart 20v Battery Pinout Diagram

The BMS has entered sleep or protection mode. Try placing it on the official charger for 10 seconds – this usually resets the BMS via the comm pin. The Hart 20V battery typically has 5 pins,

If you open the battery casing, you will find contact points labeled . These are for "balanced charging," allowing the Hart Charger to monitor each of the five individual lithium cells: C1 : ~4V (1st cell) C2 : ~8V (2nd cell) C3 : ~12V (3rd cell) C4 : ~16V (4th cell) ⚠️ Critical Troubleshooting Hart 20v Battery Pinout Diagram