abasile said:
During Year 1, we were relatively gentle in terms of cycling. However, these days we're often cycling between 80% and LBW, as the car is going down the hill (where it's hotter) much more frequently. Year 2 will not be as gentle. We'll see what effect that has.
I am disappointed that my efforts to limit depth of discharge cycling have not yielded better results. I have been to LBW 3 times, and only one of those reached VLBW. Starting last Fall, I have been limiting 100% charges in favor of 90% charges, with 80% most common.
Even in Year 1, before you started your new job down the mountain, my understanding was that you arrived home at or near LBW quite a few times, and I would think the regen on the way down, the higher than typical power levels on the way up, and charging at the bottom at relatively warm temperatures to relatively high charge would all have some impact.
At the upper end of the scale, Boomer23's relatively good experience indicates that frequent charging to 100% also does not necessarily stress the battery as much as I expected.
It would seem likely that the battery modules are kept to very tight tolerances to minimize permanent imbalance, so I would expect that the variations we are seeing are some complex function of our actual driving, charging, and temperature patterns.