The Schumacher Electric Solar Battery Charger and Maintainer is a 6/12 volt, 1.5 amp solar battery charger designed to extend battery life and performance. It has a durable, weather-resistant solar panel that harnesses the power of the sun to charge and maintain automotive, RV, marine, and powersport batteries. The built-in blocking diode prevents reverse discharge at night. This portable solar charger can be permanently mounted using the integrated mounting holes or temporarily set in place for on-the-go charging. It's an eco-friendly way to ensure batteries are ready to go when needed.