Since Prius are so popular and plentiful, and now quite old, there are companies supplying newer tech Lion packs with way more capacity, or lighter weight (or both) than the original Prius packs (many with NiMH packs).
I’m on the hunt for old Prius with dead packs as we speak.
No affiliation example pack: https://electronhybridsolution.com/product/toyota-prius-2010-2015-brand-new-hybrid-battery-rebuild-kit/
If other companies do it then it is possible, would love to get extra range on my Chevy volt
Those volt/bolt battery packs are a really neat design, but pretty densely packed, especially the cooling system.
I know a lot of conversions that use the volt/bolt packs, but to put different batteries in a volt would likely take a lot of custom fabrication and probably compromises in interior or storage space.
