The Forest River Juice Pack is a battery pack that can be used to power RV accessories. It is made up of two 12-volt batteries that are connected in series to provide 24 volts of power. The pack also includes a converter that converts the 24 volts of DC power into 110 volts of AC power, which can then be used to run RV appliances. The Juice Pack can be recharged by plugging it into an AC outlet or by using a solar panel.