Portable multi-functional charging circuit composed of LS325A

This circuit is a multifunctional nickel-cadmium battery charger, which can be used to charge nickel-cadmium batteries specially used for portable radio communication machines. It can also charge 2 or 4 standard AA nickel-cadmium batteries . When charging, when the rechargeable battery capacity reaches saturation, it can automatically terminate charging to prevent "overcharging" of the battery, and has a battery capacity detection display.