1.6v 1.35w 2.lithium polymer battery 1800MAh 3.usb 5v 4.3v 4.charge for mobile phone: 90mins 5.LED lights Performance indicators:1, using high-efficiency  monocrystalline and polycrystalline  silicon solar cells , solar energy conversion efficiency as high as 16% or more2, solar panels Specifications: 6v 1.35w .3, built-in high capacity rechargeable batteries: lithium polymer battery 1800MA (customer specified)4, the USB output voltage: 5V 4.3v(to support various types of rechargeable LED lights); Output current: 500mA5, specially designed compatible with iphone and blackberry phone6, Charge for mobile phone time: about 90 minutes7, To charge the built-in battery by solar cell about : 6-8 hours8, To charge the built-in battery by computer Usb or AC adapter  about: 4 hours9, Backpack fabric:Polyester 1680D (customer specified)10, Lining:Nylon 210T (customer specified)  *To view the test video,please visit www.any-solar.com and link to http://u.youku.com/user_show/uid_hztjq

Solar school backpack with 1800MAH