scottf200
Well-Known Member
I think you are on the mark here about headroom.Chevy appears to have a much lower Wh/kg number than the Model S does. I was originally thinking they'd have a 50 kWh pack @ about 225 Wh/mi EPA. Given the published specs, I think it's probably going to be 210-215 miles on a full charge. They're likely going to be just as conservative with headroom in the cells - they know they get one shot to make a good first impression and hopefully have learned from Nissan. They can always open it up later for a magic range increase (or degradation suppression through hidden capacity).
My 2011 Volt (3y11mo) has not appeared to lose any battery capacity but we know that it has to have.
Generally
the Gen I Volts use the area of ~22% to ~87% of the battery (65%)
the Gen II Volts use the area of ~18% to ~87% of the battery (69%)