The charger circuit is equipped with a special integrated circuit UC3906, which can check the battery status in each charging cycle. Therefore suitable for charging conventional lead acid cells and batteries for hermetically. Due to the special circuit structure is simple charger while maintaining optimal performance.

UC3906 Battery Charger schematic pcb files download: intelligent-1ah-55ah-battery-charger-circuit-uc3906.rar alternative link2 source 320volt.com