... Feature solar power charger:1. The product is aluminum alloy, noble and elegant2. MP3,MP4,IPOD,PSP,PDA,cellphone,digital camera3. With a ... of automatic protection,To prevent the power overshoot, over-discharge8. To the built-in battery by solar time :15-18 hours9. By ... file output: 3.7v 4.2v 5.5v 9.0v;solar power charger solar power charger