Ok, so my Muxsan-extended Leaf 40, 2018 is about to pass the 100.000km (98984km) mark, and is about 1000 days (1033 at time of posting) on the road so probably a little older than that.
I do about 118.6km a day on average. Charge to 100% 5 times a week at work, and drive home 80km's and leave it with about 75-85% charge, drive back to work 80km's the next day and plugging it in.
Average consumption from the pack over the past 72474km +- 133Wh/km or 156Wh/km from the wall (including pre-heating and charging losses)
Judging by the SOH numbers my Leaf shows, i gather it is a rather linear formula of dry 0,01% per 24h.
Current SOH: 89,91%
Days on road: 1033
That is a little bit too close to be a coïncidence for me.
I estimate the actual SOH around 95% judging by the amount of kWh's i can pull from the pack in optimal conditions (about 54-55kWh with the right temperatures. The extender is about 17,6kWh usable, makes 37,4kWh from the main pack, estimating 39k,5Wh when at 100%, gives 94,6% SOH.)
I usually calculate my usable capacity as follows:
(100/<spent % in Leafspy since full>)*(Wh/km from dash*Tripkm's)=Usable capacity.
So it seems to be holding up well. I rarely quick charge (63QC's lifetime, of which at least 30 "failed" sessions because of some bugs while i was betatesting some stuff for Muxsan. So really closer to 30QC's.
And 1099 L2 charges according to Leafspy, but in my own charts i recorded only 392 L2 charges, so the truth must lie somewhere in the middle as i (very rarely) bundle 2-3 short charges in one data point.
My HX numbers are rising, they reached a low point of about 92 around 90.000km (beginning of october 2020). Now around 96 and plateau-ing.
HX Peaked at 107% at 51.000km (december 2019) slowly delclining to 92 since then and now rising.
With the extenderpack i notice no / very little effect on the reported SOH and its decline which seems like it can't be true. The pack heats noticeably slower with temperatures not going very far above ambient + 1-2degrC unless i hammer it. The reported temperatures are much closer to eachother, most of the times within 1-2 degrees C.
I have been driving with the extender for 37.684km. So about since 60.000km on the ODO.
I project 70% reported SOH of the main pack around 291.032km (or in 1981days / 5 years 156 days) ODO, based on a linear extrapolation of the current SOH data provided by Leafspy. .0001019
Going off the calculated numbers of 94,6% remaining SOH now at 100.000km and 1000 days:
0,0054% per day or 0,000054 per km means 70% SOH at 554.409km or in 4555 days (12 years 175 days), probably a little optimistic, but would be fantastic if true
Nissan Leaf Zero.Edition 40kWh 2018 + Muxsan Extender (BETA).