The BCA1000 battery charger provides up to 1000 watts to charge a 12, 24, 32, or 48 Volt battery system (1 or 2 banks) from a 110 or 220VAC source. The batteries must share a common ground. This all-new single board design incorporates state of the art switchmode technology for unmatched efficiency and ultra-quite operation. Multiple stages of filtering reduce radiated or conducted noise to very low levels. Extra features include adjustable output voltage, audible and visual indicators for low input voltage, low output voltage, over temperature and an equalize charging cycle. Safety features include both charger and battery over-temperature shutdown, current limiting, short circuit protection with automatic recovery, input undervoltage shutdown, reverse battery hook-up protection, a dry contact alarm relay output and output overvoltage crowbar.