- The battery life of a Toyota Prius can vary greatly depending on how hard you drive your car and how many miles you put on it. According to Toyota, there are examples of first generation Prius cars still on the road after 300,000 miles, but that may not be the average driver's experience. There are many taxis out to 250,000 miles. Toyota claims that the batteries are designed to last approximately 125,000 miles.
- Depending on your state, Prius batteries are under warranty for either 8 years or 100,000 miles or 10 years or 150,000 miles. It's very rare, but some drivers report battery issues under those limits, and if the warranty has expired, a replacement battery pack can be purchased for (and the price has dropped steadily over the past 10 years):
2001-2003 Toyota Prius (1st generation) - $3,649 minus $1,350 "core credit"
2004-2008 Toyota Prius (2nd generation) - $3,649 minus $1,350 "core credit"
2009-present Toyota Prius (3rd generation) - $3,939 minus $1,350 "core credit"
Toyota Camry Hybrid - $3,541, core credit deducted
The first, and most reassuring thing you should know about these battery packs, is that replacement is a rare occurrence.
Toyota told us that the engineers consider the NiMH batteries in Prius and other Toyota hybrids to be a life-of-the-car component. It could be several owners and hundreds of thousands of miles down the line before the pack requires replacement, at which point the car itself may well be past its prime.
That's backed up by stories like the 300,000-mile Ford Escape hybrid taxis, and Consumer Reports recently tested a 215,000-mile 2003 Prius and found its performance had barely diminished. In the latter, the only component that had needed replacement was a fan belt, at 127,000 miles.