TP-solar 20 Watt 12 Volt Solar Trickle Charger 20W 12V Solar Panel Car Battery Charger Portable Solar Battery Maintainer + Cigarette Lighter Plug Alligator Clip O-ring Terminal for Car Boat Motorcycle

Monocrystalline solar panel kits 12 volt DC solar power charger, it is perfect for maintaining batteries of car RV motorcycle boat marine trailer tractor ATVs truck, etc. It is designed to maintain the 12V battery at a proper storage voltage with sunlight.

Lightweight and easy to carry, it weighs only 2.09 LB, size 14.1*13.1 inch, and made of waterproof and long lasting material, designed for long term use.

It is designed with a indicate light in the junction box, when the solar panel is facing the sunlight, it will light up and shows that the solar panel is charging the battery.

Plug and play: Heavy duty 2.1mm x 5.5mm DC plug with extension cord, Male to Female, included cigarette lighter plug in the socket, easy to install even for those have no professional knowledge. No additional much maintenance to the kit, no electricity cost, place the panel facing the direction with the most sunlight possible.

Built-in safety protection: Built-in circuitry will protect your batteries from discharging backwards through your solar panels at night when charger’s voltage is lower, and it will also protect your battery from overcharging when your battery is fully charged during day time.