danrjones wrote: ↑
Tue Jun 09, 2020 7:55 am
I don't want to argue about this until hell freezes over but I guess what upsets me a tad is that (IF TRUE) it means Nissan either:
A) did a poor job on Design and then Testing and found out after the fact they needed to lock away more of the battery, and issued an update to do so
B) did a poor job on design and realized they needed to lock away more of the battery, and programmed the car from the start to do so.
Mine has not had a BMS update that I am ware of, so I am guessing it is "B". If they knew they needed more buffer it should have started that way and the EPA rating should have been 135 miles.
Ask yourself this - if they knew from the start they needed more buffer, why didn't they do it from the start, instead of selling it to you as "150 EPA", then taking it away? That is called dishonesty in my book, which is why I have an issue. I do not have an issue with the idea of trying to keep the battery in good shape.
You forgot about "C"
See C below
Ok, nix all that. Forgot this is not a Threaded site.
There is also the possibility that the algorithm changes based on your driving/charging habits with long life in mind.
Neither A or B explains why the numbers go up sometimes. Bad math would do it but all indicators point to most of the math being cleaned up starting with the 40 kwh pack. I am guessing the 30 kwh programming debacle likely lit a fire under the programming team so...
Either way, I think that LEAF Spy has given us both sides of the coin.
The good; a MUCH clearer understanding of what our true range is. I tell people if you want 20 more miles of range, get LEAF Spy. Cheapest range boost ever. We have someone who did a range test and stopped when SOC meter hit 1% or 2% or whatever it was stating he wasn't willing to risk getting stranded. My stomach hurt for 3 days due to the laugh I had over that comment.
The Bad; We see every micro change. No other car provides this information with this kind of depth. Granted, if you are losing bars, that is obvious but no one has lost a bar. Has any 40's lost a bar yet? I know one guy who has to over 50,000 miles by now. Has he lost anything yet?
I "may" know more by the end of the week... and I may not.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 11,333.1 mi, 93.73% SOH
My Blog; http://daveinolywa.blogspot.com
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