SMAKN&reg; DC/DC Power Converter 12V to 13.8V 25A 345W Power Booster Input voltage: DC 12V (wide voltage 9V to 13V). Output voltage: DC13.8V, output current: 25A, enough power 345W. Peak output current :28A (max). Protection: Enter the high-voltage transient protection, output overcurrent protection, thermal protection chip. Volume Specifications: 118 * 110 * 38mm (L * W * H).