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Honda says making cheap electric vehicles is too hard, ends deal with GM
(arstechnica.com)
This is a most excellent place for technology news and articles.
EVs in the US generally come with an 8 year/100k mile battery warranty.
That being said, most of the failed batteries are with early gen Nissan Leafs.
Battery degradation is by and large a non-issue, and newer battery chemistries will easily allow 1 million miles with ~70% battery health.