Another communication line for "smart" features, ensuring the battery and tool/charger are compatible.
Monitors temperature to prevent overheating during use or charging. Identification Tells the tool or charger the battery type and capacity. C Used for system communication and safety signaling. B- Negative Terminal Main ground connection for the battery pack. Internal Balancing Contacts (C1 - C4)
: Located on the opposite far edge. Completes the power circuit. Visualizing the Terminal Layout [ + ] [ T ] [ ID ] [ - ] Positive Thermal Data/ID Negative Use code with caution. Detailed Pin Functions 1. Main Power Terminals (+ and -) hart 20v battery pinout diagram better
NTC resistor measures battery heat. If too hot, charging stops. Communication Signals battery capacity/type to the charger. Why You Need a "Better" Diagram (Internal Anatomy)
Used for temperature monitoring . This pin connects to an internal thermal sensor to prevent charging or operation if the battery is too hot or cold. C Used for system communication and safety signaling
To get power flowing from the main terminals, you need to bypass the safety check using the ID pin.
: Regulates battery parameters and safeguards the electronic circuitry during heavy loads. Completes the power circuit
To move forward with your project, do you need a step-by-step schematic for a , or Share public link
Hart 20V battery typically features a 5-pin layout (plus additional internal balance points) that facilitates power delivery, temperature monitoring, and tool identification. Unlike some competitors, these batteries do not contain comprehensive internal protection circuits; instead, they rely on the tool or charger to monitor safety parameters through specific terminals. Hart 20V Battery Pinout Overview