It seems a local hybrid repair shop has a lithium ion option for second gen prius battery packs. Costs $3000 for battery and installation. Lipo comes with a 5 year warranty or 75,000 miles.
Their standard option is $1038 for a refurbished battery with at least 80% original capacity and a 1 year warranty. A 5 year warranty on the same battery is $2900 so essentially same price as the lipo.
https://acehybridgroup.com/product/2...-prius-hybrid/
A few other local options have packs as low as $600. This would be a refurbished pack made with blades pulled and balanced.
Electron offers the cylindrical battery packs. Anyone every gone this route? Pretty expensive.
https://electronhybridsolution.com/?...vpf-ymm-search
Hybrid2go offers reconditioned packs and a lifetime warranty options - although I've read some not so great reviews on actually making a claim on said warranty.
https://hybrid2go.com/product/toyota...ion-2004-2009/ - $1300 for battery, additional $300 for lifetime warranty.