*Knock on wood* I have had absolutely no problems with the Prius. More than 25 000 km later and it’s as though the battery never gave me any trouble in the first place. There’s not a lot more to say about it than that, really. If the battery isn’t giving you any trouble, the car just drives. I don’t have any easy way of determining the pack’s health, and it’s completely possible that I’ve wrecked everything and shortened the lifespan of the traction battery, but it sure doesn’t seem to be the case. I have over 250 000 extremely rough kilometers on the car – I did construction and renovation projects to help pay for university, and used the Prius as a truck. I’m sure that contributed to the early wear of the battery pack, as there was an inordinate amount of dirt and debris in the car that probably very few other Prius in the world are subjected to. For example, I once filled the back with the waste shingles and roof debris from a re-roofing job. So that all said, I think the battery is probably one of the “healthier” pieces of the Prius as it stands right now. It’s missing most of its front bumper, and numerous non-essential pieces of the body. A small oil leak, a couple rust spots, but it still runs.
Would I do it again?
Absolutely. Particularly having done it before, but looking back, if I were doing it for the first time I still think it was well worth it. I very briefly thought about trying to set up a business offering assistance with other people’s hybrids, but I really don’t care enough to learn all I would need to do it properly. I’d certainly help anyone looking to do it themselves though. It’s utterly preposterous that the status quo is “sell us your old pack, we’ll sell you a new one”. I learned a massive amount, overcame most of my fear of electricity, and saved a few thousand dollars. I’m lucky enough to both work at a job that is very accommodating with allowing me to work from home when I needed to, and having a partner who was willing to ferry me around a bit. That bought me the ~1 month I needed to diagnose what was wrong with the Prius, research my options, buy everything I needed, wait for it to ship, fix the battery, and put it back together.