ALLPOWERS Sunpower car battery maintainer can charge 12V batteries with the power of the sun and create 18 watts of energy
SunPower solar panel works in all daylight conditions and is water resistant(Rainproof, but not completely waterproof)
Built-in blocking diode to prevent reverse discharge. Besides, rugged design works in different weather condition.?but we suggest to use it in sunlight condition?
Perfect solution for charging the batteries of car, motorcycles, automobiles, snowmobiles, tractors and more by solar when the battery is power shortage, maintaining the battery effect, extending its usage life
Package: ALLPOWERS 18W car battery charger, cigarette lighter plug, clip line, suction cupds, instruction manual, 18-month warranty and friendly customer service