Solar Laptop Charger,laptop solar charger,portable solar charger: - Power of Solar Battery: 4.2W - Max output voltage: 16.5V Solar Laptop Charger,laptop solar charger,portable solar charger:Solor Laptop charger is one of the ... )Rank of Energy output:1. 5.2V/500MA( Little USB, Big USB), Can provide power for 5V electronic products, for example, torches, MP3 ...