![]() ![]() Come to think of it, did CARB have something to do with it (mandate)?Īs far as data is concerned, I'm a junkie The curse worked to my advantage in my engineering career. And to me it was a statement of how confident the engineers were with their design. I refrained from explaining that warranties were not statements of how long something would last but was a guaranty to replacing defective parts over a period of time. I was kind of shocked when he asked in a derogatory way what he was supposed to do with the car after the GM battery warranty ran out in 8 years.get another car? His thinking was that the battery life was 8 years. I still recall having a brief conversation with another customer about the Volt when I was looking at it for the first time back in 2012. I think that GM engineers really worked on the problem and figured out how to baby the battery, both in design and construction and in environment and utilization. Judging from the averages and from the computed "miles/kWh" there has been no degradation in efficiency.Ĭlick to expand.I agree. I figured that that would show any deviance from year to year. 4.4ĮDIT: I should have pointed out that the "electric miles" and "kWh used" values are the average of the entire year. I record the data from each trip I take, whether it be 2 miles or 600 miles. On an individual basis, there are so many variables that can affect battery range that I have averaged each year’s worth of driving in the following chart in order to mitigate that problem. What parameters should I monitor to discern battery degradation? Would battery degradation manifest itself in reduced miles/kWh, or, can it only be determined by the number of miles driven before battery depletion? ![]()
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