– is Negative terminal
+ is Positive terminal
T1 is Thermistor for temperature monitoring
C1 to C4 is junction between cell groups (for balancing)
Ryobi 18V Battery Interface & Pinout Wiring Diagram
– and + = 18V
– and T1 = 0V
– and C1 = 3.7v
– and C2 = 7.2V
– and C3 = 11.1V
– and C4 = 14.8V
– and T1 = 10 kΩ (25 °C), ~8 kΩ (Current Temp)
+ and T1 = 0Ω
