They had better, with 230 wh/kg LFP and 150 wh/kg lithium-free sodium ion coming to mass production, and those chemistries are far safer than nickel/cobalt chem

They had better, with 230 wh/kg LFP and 150 wh/kg lithium-free sodium ion coming to mass production, and those chemistries are far safer than nickel/cobalt chemistries because they don't catch on fire, the "OEM" cost of a large battery pack will certainly drop under 100$/kWh, if it already hasn't. With sodium ion the cost should drop to 50$/kWh. I guess what might happen in a decade or so with EVs with "obsolete" batteries in the used market is that you just get a used EV and you have a powerwall and a secondary/tertiary city car.