138
China's new iron battery hits 99.4 percent efficiency over 6000 cycles
(interestingengineering.com)
this post was submitted on 29 Apr 2026
138 points (97.9% liked)
Technology
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I’ve never owned a flip phone that I couldn’t plug in and swap the battery with a new one without it turning off. If that wasn’t normal with your phones I’m not sure why, maybe different circuitry?
Regardless making devices easy to repair, and thus open and maintainable was what I was getting at.
Somehow, I forgot about charging cables.