I kind of assumed it would just last forever, relatively speaking. I really like the car, love getting 45-50 mpg average pretty easily. However, I recently heard and then promptly researched and found for myself people saying the hybrid batteries only last around 5-8 years or ~80-100k miles.
The 12V battery losing charge seems to have been relatively consistent. It is possible this could be a result of the HV cable issue attracting more attention/ being blamed for issues with the hybrid battery. It is also very possible that the hybrid battery and 12V battery inexplicably draining and the HV cable issue are problems that are linked
The best way to test state of hybrid battery is to use Forscan and look at the KW hours it has. I can look up the exact parameter if you'd like. My 2015 is pushing around 280. IIRC brand new was 300 and I have read that anything less than 230 is concerning. The Hybrid battery will weaken over time but it is very slow.
The average price of a 2021 Toyota Corolla Hybrid battery replacement can vary depending on location. How long does a car battery last in my Toyota? truck or SUV battery should last six How long does a TrueStart battery last? Can Last from Three to Five Years. According to some reviews, a TrueStart battery will last three to five years. That’s assuming that you are taking care of it regularly, such as cleaning its terminals, removing the formation of rusts, etc. Toyota Prius Batteries Only get a Toyota Hybrid. Hybrids in general are great. They have their pros and cons. With the Toyota, I have heard many stories were the batteries lasted way beyond 250k. Even if the batteries last to 100k-150k. That only a 1500 dollar job over a ten year span. I would get one if I commuted or planned to do alot of ridesharing. . 249 223 342 345 323 141 398 47 167

how long do toyota hybrid batteries last reddit