... short circuit protection reverse connect protection This battery charger is specially designed for Lead Acid battery, with constant voltage, and constant current, ... current automatically.3) Float chargeWhen the battery voltage reaches the setted float voltage(12V:13.5V,24V:27.5V),it ... -270V140V-270V140V-270V186V-245V186V-245V186V-245V186V-245VOutput voltage(DC)12V-13.8V12V-13.8V12V-13.8V12V-13.8V12V-13 ...