Harvard Business School (HBS) researchers, yes, THAT Harvard, have found that “Electric vehicle (EV) chargers have a high malfunction rate” and that “EV drivers can expect non-residential charging systems to not work approximately 20% of the time.”

https://granitegrok.com/blog/2024/07/harvard-study-finds-ev-infrastructure-is-ureliable-as-nearly-half-of-ev-owners-say-theyll-switch-back-to-and-icve