Samlex America (SEC1215A 12V 15 Amp Battery Charger IDEAL FOR CHARGING ALL TYPES OF 12 VOLT LEAD ACID BATTERIES INCLUDING FLOODED, ABSORBED GLASS MAT ( AGM ) AND GEL CELL ADVANCED SWITCH MODE DESIGN USER SELECTABLE AC INPUT VOLTAGE: 120V / 60 Hz OR 230V / 50Hz BY MEANS OF A DIP SWITCH SETTING CONVERSION TO A TWO-STAGE ALGORITHM IS POSSIBLE TO CHARGE BATTERIES CONNECTED TO A (DC LOAD) THIS UNIT CAN ALSO BE USED AS A DC POWER SUPPLY