Dead Battery Still Works? Here's How

Learn how to extract useful energy from dead batteries,.
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In this video, we explain how a simple Joule Thief circuit boosts low voltage using inductors, transistors, and Faraday’s law. Learn how it works, why it works, and how to build one yourself with a DIY kit or custom PCB. Learn how transistors, inductors, toroid transformers, LED and resistors work.

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