DBMandrake, without becoming obsessive about it I would keep an eye on Cell #70...
Both cells 25 and 70 are slightly weak by about the same amount - the screenshot just didn't catch them at a moment when they were both the same.
Yes I am keeping a close watch on them - as I have only had Canion for a short time I don't have any historical cell balance records from before my Ah figure started dropping more steeply.
DBMandrake wrote:...I do a very regular daily commute and my RR after a full charge the following morning can be anywhere from about 54 miles to 83 miles for the same driving style and conditions. I kid you not.
Put on at least 10,000 miles in all sorts of temperature and rain and wind conditions, and let's see if you still hold that view.
As a matter of fact I have already done 13,000 miles in just over a year in all sorts of temperature rain and wind conditions from -10C to over 20C.
I'm not sure I understand your response though - my point was that on the same
commute, in the same temperature and traffic conditions during a single week, the full charge range reported can vary anywhere from 54 miles to 83 miles with no explanation why.
This morning it said 71 miles, two days ago it said 57 miles - driving conditions were almost identical! This is why I said I don't trust the full charge estimate. I just ignore it.
While driving the car it uses the last 15 miles of average consumption to calculate it, however it does not
use just the last 15 miles driven when showing the full charge estimate. Some other calculation method is used there. I've proven this to my satisfaction by carefully keeping a log of driving conditions and especially the last 15 miles before stopping to charge and they do not correlate with the reading after a full charge.
It's my opinion that, due to its simple algorithm, our RR is 'better' than the Leaf's GOM, and over the years I've learned to rely on it without reservation - but also with the understanding of the environment I'm driving in.
The Leaf GOM is really inaccurate in general but is worst when the battery is getting low where it consistently reports more range than is possible. (Lots of people complaining about this)
After doing 13,000 miles its my opinion that the full charge range estimate in the Ion cannot be trusted, however once the battery is down to about 80% the range remaining from that point is quite accurate, and especially the last 10 miles or so are very accurate.