Keep your equipment charged and ready with the Grape Solar 100-Watt Off-Grid Solar Panel Kit. This durable panel is ideal for a variety of DC applications, including RVs, 12-Volt battery charging, boats, small pumps and LED lights. Constructed with high-efficiency mono-crystalline solar cells, this easy-to-install kit lasts for years and is virtually maintenance free. The anodized aluminum frame and sealed junction box make the panel weatherproof for outdoor use. Add up to 4 additional panels for more power. The system provides 300-Watt Hours or 25 Amp Hours of charge per average day. Compatible with deep cycle batteries including lithium-ion. The kit Includes: 1-piece Grape Solar GS-Star-100W 100-Watt mono-crystalline solar panel, a 40 Amp Grape Solar Comet charge controller, cables and manual.