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Auto execs are coming clean: EVs aren't working
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
My 5 year estimate may actually be outdated already fortunately. First article popup about it shows 8 to 12 years now depending on the company and battery type. This is actually fantastic to see that as I was quite worried the tech would stagnate eventually.
https://www.pcmag.com/news/how-long-do-ev-batteries-last-study-says-longer-than-you-think