What if you could recharge your iPhone simply by taking a walk or riding your bike? That's the pitch made by the start-ups such as High Tide, Bionic Power, Lightning Packs, and Tremont Electric, that are creating new devices to unlock kinetic energy.

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Share your small business tips with the community!
Share your small business tips with the community!
Share your small business tips with the community!
Share your small business tips with the community!