Hart 20v Battery Pinout Diagram Better May 2026

The pinout for a Hart 20V battery typically consists of 5 main pins plus several internal contact points for balanced charging. When looking at the battery with the connector facing you, the layout generally follows this configuration:

HART 20-Volt 2-Amp Fast Charger (Battery Not Included) - Walmart hart 20v battery pinout diagram better

. This system ensures the battery operates safely and optimizes performance based on the tool's power requirements. Pinout Configuration The pinout for a Hart 20V battery typically

Example values (approximate, verify on your pack)

• Pack voltage: nominal 20V (4-cell 5-series Li-ion varies by chemistry; check rated voltage).
• Thermistor at 25°C: often ~10kΩ (common) but may be 47kΩ or other — measure to be certain.

: Identifies the battery to the tool or charger to ensure compatibility. C (Control) Pack voltage: nominal 20V (4-cell 5-series Li-ion varies

Balanced Charging: These intermediate contact points allow the charger to monitor individual cell voltages (e.g., ~4V, ~8V, ~12V, and ~16V increments) to ensure all cells stay balanced.

Six cells. The Hart battery was a 5-cell stack.

Here’s a helpful, practical post about the HART 20V battery pinout, written for DIYers and tool users.