Ensure your vehicle's battery is always fully charged and healthy with Schumacher's SP-400 4.8-Watt Solar Battery Maintainer with included SPC-7A 100-Watt Solar Charge Controller Bundle, powered by the limitless energy of the sun. This maintainer easily extends the battery life of 12-Volt lead-acid batteries and is perfect for use with motorcycles, snowmobiles, ATVs, boats, cars, trucks, RVs, and more. The SP-400 utilizes amorphous solar technology, ensuring it works even in cloudy conditions. Additionally, the unit is built with water resistance, making it durable enough to withstand a sudden rain shower. With two hookup options available, you can either connect the battery clips directly to your battery or use the 12-Volt plug in your vehicle's DC accessory outlet. For extra overcharge protection, the Schumacher SPC-7A Solar Charge Controller is capable of handling up to 7A of solar array current and up to 100-Watt of solar power. The SPC-7A features three LEDs to indicate high voltage, charging, and low voltage. It also has three quick-connect DC ports, so you can easily connect a 12-Volt rechargeable battery, a solar panel, and a load application. In addition, mounting holes allow users to permanently mount the charge controller. Don't let a dead battery ruin your day, get the schumacher SP-400 Automotive 4.8-Watt Solar Battery Maintainer and SPC-7A 100-watt solar charge controller bundle and enjoy the peace of mind that comes with a fully charged battery.