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  • g1ra commented on geekrex's instructable Powerduino - 1$ Powerbank11 months ago
    Powerduino - 1$ Powerbank

    YOU MUST PROTECT LI-ION CELL , otherwise it will CATCH FIRE , Li-Ion cells need current and voltage limiting !!!!!

    YOU MUST PROTECT LI-ION CELL while charging, otherwise it will CATCH FIRE , Li-Ion cells need current and voltage limiting !!!!!

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