I'm also wondering if you even want my data. More than a year old but only about 12K miles. Range mode charge gets about 246 mi. So if you're looking to study battery degradation, I don't really have any.
I'd like to suggest the possibility that capacity loss may not be related to miles so much as average level of discharge for each charging cycle. It's likely that those who drive a lot will generally be at a lower SOC when they plug in every night. Perhaps you have enough data to compare somebody who, say, drives a lot but charges at work and at home so that they rarely reach a low SOC before charging, to somebody with the same miles but only charges once a day. Maybe you can plot average level of discharge against capacity loss per mile.
In order to be able to compare things like depth of discharge you need more than just the last raw log file, you need a whole series of log files over the life of the car.
The raw files contain high detail records for a couple of months of data, and low detail records for many years. In order to guarantee that you have high detail for the entire life of the car you have to pull a log file every month or two.
I haven't even done that for my own car ( I've missed a few months ) but I'll try to make a chart.
Personally, I'm only sending in my VMSParser output but I'm keeping all the raw files so if need be I can re-run w/ a new version of the parser or different options. So that's an option as well.
Twilight Blue Roadster 2.5 - #1098 / Grey Model S Performance - #1459
I was originally hoping to see if any of those factors affected battery capacity, but so far we just don't have enough data. The charge rate and temperature data only comes from the "short term" section of the log - and the log only keeps about 2-3 months of that data - so if you don't keep a complete history of log files ( by gathering and saving one every 2-3 months ) then that data isn't very meaningful.
If we collectively discover some factor that seems important, we can go back and add processing that data to the parser and re-run all the log files. If you stay interested in the results of this thread, then its best if you do that.
The really young cars have not been very interesting so far.
There should be a lot of 3 year old cars out there now - and over the next few months a lot more cars will be providing very interesting data.
I download my logs periodically, and I believe I have a complete record of my car's activity. If you think that might be helpful I can make the full set available.
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