According to technical measurements and user diagrams, the five pins are generally arranged as follows: Voltage (Relative to Negative) Main power output ~18V - 20V (Fully charged) TH (Thermistor) Temperature monitoring to prevent overheating ID Identifies the battery type to the tool or charger C (Control) Control signal for charging/protection (-) Negative Common ground / Return path Advanced Under-Voltage Detection
Connects to a thermistor inside the battery pack. The charger reads this resistance to ensure the battery is not overheating during charging. 3. Data / Communication ( ) - Terminal 3 Function: Identification / Data. hart 20v battery pinout diagram better
The Hart 20V battery uses a 5-pin interface to manage power delivery, temperature monitoring, and safe charging between the battery and the tool or charger Pinout Configuration According to technical measurements and user diagrams, the
: Lithium-ion batteries can be dangerous if shorted. Always use fused adapters and 14 AWG wire for high-power applications. Data / Communication ( ) - Terminal 3
A typical HART 20V lithium-ion battery consists of a 5-cell series (5S) arrangement, producing a nominal voltage of 18V and a maximum voltage of 20V. The interface uses a multi-pin connector system hidden inside the battery tower.
Six cells. The Hart battery was a 5-cell stack.
The "better" diagram wasn't a suggestion. It was a warning.