Wednesday, Autoline Daily had this posted:
Ken Foster is not very impressed with his plug-in hybrid. “I’ve owned a 2013 C-MAX Energi since new and have monitored battery capacity over its 4 years and 40,000 miles. I have already lost 25% capacity. Needless to say, this is very disappointing to me and will probably make this car the last hybrid I own until the technology improves.” Well, my advice is don’t buy any electrified car. Just lease it. The technology is changing and improving so fast that whatever you get today will be obsolete by the time your lease is over.
I am not qualified to post a comment about Energi batteries because I own a 2014 BMW i3-REx and 2017 Prius Prime Plus. I'm quite happy with the BMW which after 28k miles is not showing significant battery degradation. But LiON batteries are often different across vendors and packaging varies between air and liquid.
Is 'lost 25% capacity' after '40,000 miles' realistic to what others are seeing?
Has anyone attempted to plot miles and/or years versus capacity?