The following is the circuit diagram of the lithium battery charging circuit Lithium battery charging circuit LED1 and LED2 are respectively used as indicators for charging neutralization and charging saturation. R1 acts as a current limiting protection during charging; capacitors C1 and C2 use multilayer ceramic capacitors (MLCC) to ensure stable operation of the charging circuit. . Medical Equipment Battery,Cr123 Batteries,Lithium Battery 123,Cr2 Lithium Battery Jiangmen Hongli Energy Co.ltd , https://www.honglienergy.com