You can keep your vehicle's battery charged and ready with a Windy Nation 12-volt solar battery charger. The Windy Nation solar charging panel provides up to 12 volts at 100 watts and is able to handle a variety of high-capacity batteries. Featuring Grade A quality photoelectric cells, this Windy Nation device can output between 300-600 watts per hour on sunny days. Whether you need energy for your home, boat, car, truck, or cabin, this sun-powered device is durable and dependable.