Go Power! GP-SF-15 SUNfilm 15 Watt Solar Panel Harness the power of the sun to charge your 12 Volt batteries with 15 Watts of charge Completely silent green energy Comes with a variety of connections to hook up to many types of 12 Volt batteries Trickle charge cars, trucks, motorcycles, snowmobiles, ATV's, personal watercraft and more Keep your batteries topped up when they are left idle