Just like for ICE buyers will learn about the important things about EV choice and ownership.

An EV maker that sells parts at inflated prices including the battery will get less and less customers.

As those customers look at catalog prices for important parts including the battery before buying an EV.

Random web page on the topic:

https://www.recurrentauto.com/research/costs-ev-battery-repl...

Another listing price:

https://evshop.eu/en/13-batteries

Note the used LFP 55 kWh tesla pack at $4140 so ... $75/kWh.