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Re:A brief history of barbed wire fence telephone networks (... by pyrale on Thursday February 12, 2026 @11:36AM (#46990909)
> Sadly, he did not say how the batteries were re-charged.

Dry-cell batteries had to be changed, they weren't recharged.

https://www.reddit.com/r/diyelectronics/comments/y7qmhq/15v_...

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