Traditional portable batteries are limited by the amount of power they can store onboard, and have to be recharged themselves before they can be used again. This isn’t a problem with the Kraftwerk Power Plant ($100), a charger that not only stores power, but generates its own juice for continuous charging of your smartphone, GoPro, or other devices. It runs on easily accessible camping gas cartridges or lighter gas, recharges itself in as little as 3 seconds after resupplying it with fuel, and can charge an iPhone up to eleven times on a dingle fill.
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