Ensure your vehicle's battery is always fully charged and healthy with Schumacher Electric'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 12V 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 100W 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 Electric 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.