ttweed wrote:...If transparency and customer communication regarding battery health are worthy goals, as both sides seem to agree, then Nissan should make available ASAP a means for owners to receive accurate reports of their individual car's battery capacity on a daily (or weekly) basis, through the Carwings owner's portal, and be able to monitor it over time, in order to assess the effectiveness and impact of their individual driving and charging habits (and climatic conditions)...
I see some reasons why they ~might~ resist that:
#1: They are concerned a competitor could use it to improve competing battery EV technology.
#2: They don't want customers to have too much insight into problem areas they would rather "discuss around."
#3: They are concerned that customers could have too many questions about the meaning or accuracy of the data.
#4: They are trying to "dumb things down" a bit so they don't intimidate non-technical customers.
With that said, I think there are even more reasons why many of us would like having that information available. Many of us are interested in doing what we can to keep our batteries from losing capacity, and we do things like debate heavy acceleration, high speed driving, 240v vs 120v charging, too much quick charging, charging to 100% vs 80%, storing the car at 50%, etc, etc, etc.
Perhaps Nissan has all that data too - on driving and charging habits, temperatures, and such, and could provide us more details into how those factors influence battery degradation. So far we get vague and mixed messages about what are the "best practices" for treating the battery in the best possible way. If we can't get good analysis summaries, then perhaps more raw data could be made available so the engineering types on these forums could analyze it themselves. Perhaps there could be a "make my data public" feature on carwings that would publish your battery health history, charging, and driving habits for others to compare so we can figure out what is the best way to use/charge the car...