Coleman 12V Solar Battery Charger 40W + Controller
The 40W amorphous solar panel is ideal for charging 12V batteries for boats, SUVs, RVs, tractors, electric fences, deer feeders and more. Multiple panels can be linked together to increase power, and the panels are totally weatherproof, maintenance free and very easy to install. The panels are made of a durable, steady metal frame and crystalline solar cells.