There used to be (before preorder) an option for an extended battery. Am I missing it hidden in the customizer?

I believe they got rid of the smaller battery. Before the tax credit was removed, they were sourcing a more expensive battery. After the credit was removed the switched to a cheaper battery. The cheaper battery would not have qualified for the tax credit, but that’s not an issue anymore.

https://insideevs.com/news/799667/slate-truck-lfp-battery-ra...