[Pearls Before Swine]

And after 50 cycles, it still had 54 percent capacity retention...

Sure, it's not ready for prime time. But, the possibility that batteries can be made of rust instead of lithium is worth investigating to see if it can be made a practical reality.

[cuban leaf]

But, the possibility that batteries can be made of rust instead of lithium is worth investigating to see if it can be made a practical reality.

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With that I firmly agree.

If it goes somewhere, that would be fantastic.