[nardi]

If you’d read the article, you’d know that it explains that the potato is just acting as the electrolyte, and it does mention that replacing the zinc electrode is cheap.

[publicola1990]

As another comment explains, it is merely getting back some of the energy expended in extracting metallic zinc and copper from their ores.

Also such potato batteries have been a school science projects for long.

[nardi]

I'm not defending potato batteries, I'm just pointing out that the article already explains all of this.

[isoprophlex]

... as would a bucket of salt water. Or piss.

[thisiswater]

Yes, but the headline says it's a potato battery. It's not. It's a battery with a potato in it.

[overboard2]

But that's what all potato batteries are.

[leephillips]

That’s what they want you to think.

[birdyrooster]

Lmao (if I delete this it’s bc I don’t like getting downvotes)

[birdyrooster]

Nooo I can’t delete!!!!

[leephillips]

That’s what they want you to think.

[nardi]

It is a potato battery—that's what it's called when you use a potato as the electrolyte for a battery.