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"  The several solar panels integrated into the fabric of the PowerFilm USB + Solar Charger allow it to be tightly folded for storage, and then rolled out to charge. Its included battery pack is comprised of two rechargeable AA batteries. Once charged, the entire unit can be connected to your electronics or the batteries can be removed and used as regular AAs. Unfortunately, the device lacks additional connectors, so you need to have the USB cable for any electronic that doesn&amp;#039;t run on AA batteries. The charging panel also has six grommets built in to allow for secure fastening to a backpack or the ground. In out tests we got 60 minutes of playing time. powerfilmsolar.com.  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.goodhousekeeping.com/home-products/solar-charger-reviews/a28220/powerfilm-usb-aa-solar-charger-918/>