Delivers the full voltage of the battery pack (nominally 18V, peaking at 20V when fully charged). 2. Negative Terminal (-) Location: The outermost slot on the opposite side. Function: The common ground for the circuit. 3. T-Terminal (Thermistor / Temperature) Location: One of the inner pins.
If you are trying to use a HART battery to power a Power Wheels car, a vacuum, or an e-bike, you cannot simply hook up the (+) and (-) pins and expect perfect results.
When looking at the battery with the , the layout typically follows this 4-pin or 5-pin sequence: 1. Positive Terminal (+) Location: Usually the outermost slot on one side.
Avoid soldering directly to the battery tabs. The heat can damage the internal Battery Management System (BMS) or the plastic casing. Use HART-compatible battery adapters (available 3D printed or online) to safely tap into the power. Conclusion