Double USB Power Plug charges two devices simultaneously while the LCD screen displays charging status in amps, battery voltage, and low voltage audible alarm. The total output 4.8A load is split 2.4A per side as needed. Enough power to charge phones, pads, and tablets quickly and efficiently. Can be used on a boat, car, or RV. This portable version fits all Sea-Dog Power Sockets and any standard 12V receptacle. Constructed of stamped stainless steel and injection molded nylon. Output DC 5V/4.8A. Input 12-24VDC. Blue LED display.