2.4 W SOLAR BATTERY MAINTAINER Charges 12V lead-acid batteries Extends battery life Works in cloudy conditions Water-resistant Environmentally safe Minimal maintenance Ideal for boats, cars, motorcycles, snowmobiles, trucks, RVs and more Contents: (1) Schumacher SP-200 solar panel (1) 12V DC adaptor (1) clamp adaptor (4) mounting screws (1) owners manual