C1- is Negative terminal
C3+ is Positive terminal
T is Thermistor for temperature monitoring
C1+ and C2+ is junction between cell groups (for balancing)
Milwaukee M12 Battery Interface & Pinout Wiring Diagram
Data Measured from Milwaukee M12 (12V) Battery
C3+ and C1- = 12V
T and C1- = 0V
T and C3+ = 0V
C1- and C1+ = 4V
C1- and C2+ = 8V
C1- and C3+ = 12V
C1- and T = 10 kΩ (25 °C), ~8KΩ (Current Temp)
C3+ and T = 0Ω
