The BoostSolar splash-proof solar-powered backup battery pack from Etón provides power to hand-held devices with its interchangeable, rechargeable lithium battery (5000 mAh). The BoostSolar features an LED battery charge indicator, rugged rubberized and IPX-4-rated splash-proof exterior in addition to fastener holes and straps to hook to a backpack for portability. This solar charger can be fully charged in 16 hours via the sun, or in seven hours with the Micro-USB DC input. Once charged, it can be used to fully charge most smartphones 2.5 times. It also features a 5V/2A USB port for charging tablets. The interchangeable battery pack design allows you to charge multiple backup batteries in succession: simply snap in a removable battery pack and allow it to charge, and then immediately replace it with another to gain unlimited backup power. The Etón BoostSolar is available now for $99.99
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