solar backpack

This　is　a　high　perforance　Li-ion　battery.

It　takes　about　3　hours　to　fully　charge　the　battery　pack　&　bout　8　hours　by　direct　sun　light.

Atfter　the　battery　pack　fully　charged,　it　can　charge　two　sets　cell　phones,　and　each　cell　phone　takes　about　one　hour　to　be　fully　charged.

This　design　will　charge　most　of　the　cell　phone,　Ipod,　Iphone,　MP3,　MP4,　PDA　and　many　small　electronic　devices.