AS THE BATTERY NEARS ITS FULL CAPACITY THE DLS-27-25 WILL AUTOMATICALLY DROP THE CURRENT PROVIDING A FLOAT CHARGE TO THE BATTERY TO PREVENT SELF-DISCHARGE OF THE CELLS. PROVIDES AC/DC CONVERSION UP TO 25 AMPS AND FEATURES A DUAL VOLTAGE JACK ALLOWING THE USER TO MANUALLY SELECT BETWEEN A NOMINAL CHARGING VOLTAGE OF 27.2 OR A STEPPED UP CHARGING VOLTAGE FOR FASTER BATTERY CHARGING. INPUT FREQUENCY: 50 - 60 Hz. DC OUTPUT VOLTAGE )NO LOAD) APPROX.: 27.2V (DC). OUTPUT VOLTAGE TOLERANCE (NO LOAD) : + OR - 5%. OUTPUT AMPERAGE, MAX CONTINUOUS: 25 AMPS. OUTPUT VOLTAGE (FULL LOAD) APPROX.: >27.0V (DC). MAXIMUM POWER OUTPUT, CONTINUOUS: 675 WATTS. RIPPLE AND NOISE: 80%. MAX INRUSH CURRENT, SINGLE CYCLE: 40 AMPS. SHORT CIRCUIT PROTECTION. OVERLOAD PROTECTION: >100%. LINE REGULATION: 100 mV RMS. LOAD REGULATION: <1%. FAN CONTROL: PROPORTIONAL. THERMAL PROTECTION. WORKING TEMPERATURE RANGE: 0 - 40C. STORAGE TEMPERATURE: -20 to 80C. WITHSTAND VOLTAGE: 1240V @ LEADS. UL LISTED. WEIGHT: 5 LBS. DIMENSIONS: 9.7" X 6.7" X 3.4". 2 YEAR WARRANTY.