Unless there are numerous aftermarket alternatives, like there are for normal ICE 12V car batteries, then this really isn't helpful all that much. We non non-proprietary fixes that won't be discontinued.
I get that, but it isn't my issue as stuff like computers and specific pieces are almost always OEM only.
My issue is whether it's going to be worth doing at all even if you can do it.
Putting a new module in a really old pack isnt going to bring up the pack.
These batteries are getting into the hundreds K of life in the field and quite robust.
at X degradation you might as well just reline the whole pack or buy a new battery.
This feels like it's going to be largely unused modularity, but we still dont know any metrics around it as we do others in the space.