Power supply

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  • E-waste as fuel: engineer builds an e-car battery from discarded vapes

    News + Trends

    by Kim Muntinga

  • Swiss start-up shows bendable battery as thin as paper

    News + Trends

    by Lorenz Keller

  • Qi2 test revelations: iPhone charges faster with the competition

    Guide

    by Lorenz Keller

  • Here’s why batteries have strange designations like CR2032

    Background information

    by Martin Jungfer

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