EVs are getting old enough now to get some proper data on how long the batteries are lasting. The study backs up the rule of thumb of packs lasting over a decade, also range degradation is surprisingly low:
https://www.pcmag.com/news/how-long-do-ev-batteries-last-study-says-longer-than-you-think
I would think the longevity of the Prius battery packs would have been a huge clue to this (just don't full charge or discharge if you can avoid it)
...wait... what is that sound...
...oh, it's just the crypt of Frency's account shaking... trying to burst out...
In reply to aircooled :
Yeah, I was wondering when Zombie Frenchy would check in.
aircooled said:I would think the longevity of the Prius battery packs would have been a huge clue to this (just don't full charge or discharge if you can avoid it)
Priuses mostly use NiMH batteries, which is a very different tech from the lithium ion cells used in most EVs.
Even though EVs have been around for a while battery technology has been constantly evolving. Over time the 180AH cell we were buying ended up improving with each order and were testing out close to 200AH by the end. I imagine life improved also though there are a lot of factors, temperature, number of cycles, etc.
Leafs were bad because of the lack of battery management. Poor thermal management in particular.
Kia Niro EVs (my wife has one) has a direct readout in the scan tool data for battery capacity lost. Will have to check again as we come up on 30k mi in ~2yrs. But it was still 100% at the 15k mark. They have a liquid cooled battery to avoid premature degradation.
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