Portable 12-volt fluid transfer pumps for mobile. DC portable fluid transfer pump is designed as a ready to use mobile.For fluid dispensing from drums or small tanks to refuel vehicles. Where mains power is unavailable or. Needs to be carried out in. Our DC 12v fluid transfer pump range all come with cable and clips. To the vehicle's battery. DC fluid transfer pumps for portable. When fluid transfer is required in an area where only battery power is available, a 24v fluid transfer pump complete with battery clips is the dispensing solution. Equipment and agricultural machinery often have a 24v battery, and. Fluid transfer pumps are required instead of a 12v in these instances.