... short circuit protection reverse connect protection This battery charger is specially designed for Lead Acid battery, with constant voltage, and constant current, ... .1.Applicable scope1) Suitable for charging all kinds of Lead-acid battery.2) Input working voltage:AC140-270V,Working frquency:47- ... the current0.1-0.3A.4) Stop chargeWhen the battery voltage reaches the fully charged point(12v:14v,24v: ...