Thank you. Those batteries are the Achilles’ heel with hybrids. People do not factor in the replacement cost when they talk about the cost of owning those cars. In addition, the environmental impact of all those spent batteries needs to be considered.
I think the Prius battery pack is warrantied for 8 yr/100,000 mi. Long-term owners report the battery age is more important than the miles, with a hot environment as significant factor.
A European Prius cab supposedly has the same battery pack at 600,000+ miles at 70k mi/yr.
Very few people who pay a premium price for a vehicle will keep it past 100,000 miles, same as any other premium vehicle.
The cliche Pious owners are “reducing their carbon footprint,” and are willing to pay a premium for it.