Charging circuit diagram with constant current charging and discharging function

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Shunluo Inductance Power Inductor SWPA Series First Class Agent

Charger with constant current charging and discharging function. When K is placed on the 1st bit for fast charging, T1 is saturated and the LED red LED is lit, resulting in a constant current charging circuit composed of T3, R6, and LED1, to E (2 500mA?h nickel cadmium battery) Charging. Adjust the resistance of R6, the charging current is about 100mA. The circuit has a slow charging current of 50 mA. R5 adjusts the discharge current and can be adjusted to 10mA.