Create 5 watts of electricity for charging and maintaining batteries of 12 volts Works with automobile, tractor, electric fence, deer feeder, the batteries in the boat and many more Made of durable ABS plastic and amorphous solar cells Expenses Weatherproof amorphous panels in all daylight conditions, even on cloudy days Includes 15 “x 14-1/2″ amorphous solar panel, pre-drill 4 holes for easy installation 4 stainless steel screws, wire 9.5 m, 12V DC plug, battery clamps and Quick Connect technologyThe Sunforce 50022 5-Watt Solar Battery Trickle Charger gives you another reason to love the sun – that will help keep the vehicle’s battery charged anywhere, anytime. Just plug this helpful 5-watt trickle charger into your vehicle 12-volt cigarette lighter socket and position the panel to gather as much light as possible. Or if you prefer, use the terminals of the battery cable to connect directly to the battery, so you can keep the cigarette lighter socket open for cell phone chargers or other accessories. Regardless of how you connect the charger, you’ll never get caught off guard without the juice you need to start your car. The amorphous solar panel is completely weatherproof, the charges in all daylight conditions and has a built-in blocking diode protects against battery discharge at night. The 50022 is ideal for cars, recreational vehicles (RV), tractors, boats, electric fences, telemetry and more. It has a maximum power of 5 watts and 350mAh. With a maximum temperature range of -40 to 176 degrees Fahrenheit, this unit measures 14 x 13 x 0.75 cm (WxHxD) and weighs 4 pounds.The Sunforce 50022 5 Watt Solar Battery Trickle Charger gives you another reason to love the sun-can help keep the vehicle battery charging. It provides up to 5 watts or 350mA of power to prevent the escape of natural battery voltage over