Key Features  Selectable input voltage ranges, charging current setting  Auto restart when AC recovery  User friendly LCD and LED indications with setting function  Environmental Temperature control charge management  Rack design & wall mounted design for flexible installation  Intelligent 3 stage charger control for efficient charging and preventing overcharge Multiple protection: Low battery alarm, Low battery shutdown, overcharge protection, overload protection, over temperature protection, short circuit protection  Fan speed automatic adjust, Low noise  Battery Cut off point setting  Buzzer alarm ON/OFF setting