6V/12V/24V 16A lead acid battery charger over-charged &thermalprotection output short circuit protection reverse ... connect prot This battery charger is specially designed for Lead Acid battery, with constant voltage, and constant current, trickle charge, over ... .1.Applicable scope1) Suitable for charging all kinds of Lead-acid battery.2) Input working voltage:AC140-270V,Working frquency:47 ...