http://tinyurl.com/n5rn35g

IOTA Engineering (DLS30) 30 Amp Power Converter/Battery Charger

CONVERTS NOMINAL 108-132AC VOLTAGE TO 13.4 DC VOLTAGE FOR BOTH LOAD OPERATION AND 12V BATTERY CHARGING

IDEAL FOR CHARGING ALL TYPES OF 12 VOLT LEAD ACID BATTERIES INCLUDING FLOODED, ABSORBED GLASS MAT ( AGM ) AND GEL CELL

AS A POWER SUPPLY THE UNIT'S TIGHTLY CONTROLLED REGULATION ALLOWS THE USER TO OPERATE A NOMINAL 12VDC LOAD UP TO 30 AMPS

AS A BATTERY CHARGER THE UNIT WILL MAINTAIN THE BATTERY DELIVERING ITS FULL RATED CURRENT WHEN THE BATTERY CAPACITY FALLS SUFFICIENTLY LOW

VOLTAGE IS SET TO DELIVER ITS MAXIMUM CURRENT FOR THE NECESSARY PERIOD OF TIME TO MINIMIZE UNDUE STRESS TO THE BATTERY CAUSED BY HEATING OF ITS CELLS