Open-circuit voltage

And the other reason why the lithium-ion batteries have a higher energy than sodium is you get four point two volts per cell.

Sodium's approximate open-circuit voltage is gonna be three volts.

And OCV just stands for open circuit voltage.

And another plot to kind of show where the battery roadmap is going is you can see where we're at and where we're trying to get to.

So there's, there's solid state technology that's coming out.