Sunforce 1.8-Watt Solar Battery Maintainer

Maintenance-free solar panel mounts on windshield with included suction cups and charges in sunny and cloudy weather conditions. Just plug it into vehicle???s 12-volt outlet or connect directly to battery with included alligator clamps. Made of durable ABS plastic and amorphous solar cells. Maximum output: 1.8 watts, 125 milliamps per hour.Note: Not for outdoor use. Exposure to outdoor weather conditions will damage the unit and void the warranty.