[SauronOfMordor]

I’d be fine with a battery with 75-90% of the capacity, for much lower price.

I’d be more curious about recharge time.

[Jonty30]

That’s where Potassium might have an edge, price.

It’s also apparently more stable when overcharged, so you don’t have to worry as much about fires.

This is an article that compares Lithium to sodium to potassium.
https://www.takomabattery.com/potassium-ion-battery/

[TexasGator]

“I’d be more curious about recharge time.”

Technical articles say faster.

[butlerweave]

and if you can only charge them to 80% , charging station rules will you get to a charging station to charge it