First hand experience here: I had a 2013 Ford C-Max Energi. I purchased it used at 10K miles at which point I was able to get 23-25 miles on pure electric range in the real world (EPA estimated range was 21). Fast forward to 88K miles, I was down to 11-13 miles with the same commute, similar environmental conditions, same driver.
I personally believe 50%+ loss in range was caused by Ford’s lack of battery management software that should have limited the charge and discharge to an 10-80% SoC. The battery control module would allow for 0-100% SoC. That said, it didn’t do too bad if you think about it. I beat on that poor battery. 9-10 100% charge and discharge cycles per week for 4.5 years; about 2,200 total cycles during the time that I owned it.
Once prices come back down, I’ll be in the market for another PHEV.
I personally believe 50%+ loss in range was caused by Ford’s lack of battery management software that should have limited the charge and discharge to an 10-80% SoC. The battery control module would allow for 0-100% SoC. That said, it didn’t do too bad if you think about it. I beat on that poor battery. 9-10 100% charge and discharge cycles per week for 4.5 years; about 2,200 total cycles during the time that I owned it.
Once prices come back down, I’ll be in the market for another PHEV.