Very useful! 182

Indeed, this solar USB charger is very convenient. You can connect all USB device that is (camera, mp4, see fan Desk Fan USB, black, PC, laptop, netbook, Apple Macbook, iMac [1:30 autonomy when the battery is max] ).
Ditto for laptops, there are very practical tips 2/3, and for the rest, increasing cell can charge through USB.

It should be managed by knowledge against reloading (relatively long with the sun - which is logical - but frugal, or USB / sector, not economic but fast) in order to use the product correctly and when it is needed ( as a second battery or power supply).

In short, a "gadget" useful to the environment!