The IOTA DLS Series uses switch-mode technology to deliver dependable battery charging and power conversion for your RV needs. Features clean DC output, two selectable charging modes (13.6V and 14.2V), low operating temperature, quiet operation and more. Works in conjunction with the optional IQ4 Charge controller for automatic four stage battery charging. UL and CUL Listed (excluding the DLS-90). 2-year factory warranty. The DLS-30 Power Converter/Battery Charger from IOTA Engineering converts nominal 120 AC voltage to 13.4 DC voltage for both DC load operation and 12V battery charging. DLS-30 The DLS-30 provides AC/DC conversion up to 30 amps and features a Dual Voltage Jack, allowing the user to manually select between 13.6V and 14.2V charging. DLS-30/IQ4 The DLS-30/IQ4 features an internal IQ Smart Charge Controller which automatically provides three-stage battery charging for safer charging and longer life for your system's battery. 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. The 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. This helps to ensure the longest possible life of the battery. Over time, as the battery nears its full capacity, the DLS-30 will automatically drop the current, providing a float-charge to the battery to prevent self-discharge of the cells. SPECIFICATIONS DC Output Voltage (No Load) approx. 13.6V (DC) Output Voltage Tolerance (No Load) + or - .7% Output Amperage, Max Continuous 30 Amps Output Voltage (Full Load) approx. >13.4V (DC) Maximum Power Output, Continuous 400 Watts Ripple and Noise <50 mV rms Input Voltage Range 108-132V (AC) Input Voltage Frequency 47-63 Maximum AC Current @ 108VAC 7.3 Amps Typical Efficiency >80% Max Inrush Current, Single Cycle 30 Amps Short Circuit Protection Yes Overload Protection >100% Line Regulation 100 mV rms Load Regulation <1% Fan Control Proportional Thermal Protection YES Working Temperature Range 0° -40°C Storage Temperature -20° to 80°C Withstand Voltage (VDC)* 1700/1700/500 Dimensions 9.7" x 6.7" x 3.4" Weight 5.0 lbs