So in 2011, the 85 kw battery, and 4 years later, still 85 kw.
It is often stated that energy density increases by about 8 percent annually, so by this measure alone, that same battery pack should be punching at 32 % higher. That might be about an extra 27 kwh, or 110 kwh as opposed to an 85 kwh one.
So the question is did they just use less cells? Or does it take more than 4 years to bring the new batteries online? Or are we in a improvement rate slump?
I find it hard to believe that if it had these improved density batteries, that it wouldn't use them to improve the range of the top 2 models range.
So what are the forces at play here?
Maybe the x has them and will announce a 110 kwh battery with the enhanced range?