STANDARD FEATURES OF ALL INTERACTER CHARGERS: HIGH ENERGY RETURN, FAST CHARGING CONSTANT CURRENT FIRST STAGE DUAL VOLTAGE LIMIT (CYCLIC/ STANDBY) PROPORTIONAL TIMED CYCLIC CHARGE STAGE CONSTANT VOLTAGE FLOAT STANDBY AUTOMATIC SAFETY OVERRIDE TIMER START DELAY ON BATTERY CONNECT SHORT AND REVERSE CONNECTION SHUTDOWN RUGGED SCR PHASE CONTROL MAINS ZERO-CROSSING BATTERY SENSING LINEAGE SERIES (LS) MODELS are the most cost effective series and are available for 6, 12, 24, 36, and 48 volt batteries rated at up to 6 amps. The THREE STAGE Constant Current, Constant Voltage, Proportionally timed system used in all Interacter models provides fast charging and optimal timing over a wide range of battery sizes and depths of discharge. 1 BATTERY CHARGER OWNER'S MANUAL INTERACTER II MODELS PROFESSIONAL, LINEAGE, EX and INDUSTRIAL/ COMMERCIAL SERIES 6, 8, 12, 16, 24,36 and 48 Volt - CAUTION - READ THIS MANUAL CAREFULLY FOR RULES OF SAFE OPERATION AND PROPER USE OF THE CHARGER *** SAVE THESE INSTRUCTIONS *** IMPORTANT SAFETY INSTRUCTIONS Interacter offers a range of high performance Battery Chargers fo ruse in demanding applications, featuring a patented microprocessor system that out-performs all industry standard chargers in the same price range.