The Eton BoostTurbine 2000 AKA "The Crankerator" is a handy backup battery that charges your smartphone or tablet via USB, wall socket, or human-powered cranking. It features a 2000 mAH lithium battery, an emergency crank when the battery runs out of juice that generates a 4 minute charge per 60 seconds of cranking, an LED indicator light to show battery charge, and a lightweight yet durable aluminum housing. Keep it around to charge your devices when you're away from civilization, planned or not.
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