Stay powered up with the Koolatron 12 Volt Solar Trickle Charger. The charger will help you avoid getting stuck with uncharged batteries. The amorphous solar panel is weatherproof and charges in all weather conditions including cloudy days. This solar trickle charger is easy to use and requires minimal installation. It comes equipped with a 9 feet cable 12 volt DC plug battery clamps and mounting hardware.