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Infinite energy trick
(lemmy.world)
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this post was submitted on 10 Jan 2025
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It's not even shorting it. Imagine if you took a plain battery and tried to charge itself from itself. You'd connect +ve to +ve and -ve to -ve: it'd do nothing.
I think the battery pack does clever things stepping voltages up and down: that's how it can give charge at the same 5v as it was charged itself. So in this case those circuits will be just burning off energy.