Today's phone batteries last so long, it's easy to forget to plug back in. Enter the WakaWaka Power. Running off a 22% efficiency solar cell, the WakaWaka uses just one day of sunlight to charge a smartphone 2.5 times, so you don't get stuck in a pinch without Instagram access.
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Since this device is especially useful in areas with intermittent power, WakaWaka has taken a social entrepreneurship approach to sales (a la TOMS shoes), donating a model to Syrian and Haitian refugees with every purchase. It's not a panacea to the woes of global energy — or your phone's battery — but it's a neat little step in the right direction.
Alternately, the WakaWaka can power its onboard light for 40 hours, giving you no excuses not to work during the blackout.