Battery Charger Circuit Suitable For12V Battery. High output current of about 5 Amp Maximum. Automatic charging voltage and current according to the battery status. Battery Type Support Lead Acid, Gel Battery, Tubular Battery, Lithium Ion, Lifepo4, etc. Charge Battery 7AH To 18AH Battery Cut-Off Adjustable. Very Low Current Consumption Only 1.5ma. Short circuit protection.