kWh/100km - is it accurate, what does it include

KCross

I recently did the Ring of Kerry in the 24kWh Leaf.

If you ever wanted to get high efficiency out of an EV its on that road! You can't average much more than 50km/h so aerodynamics have little to play.

The dash on the Leaf reported 13.9kWh/100km. Based on how I drove I can't imagine how you would get much better than that out of the Leaf over a ~100km trip. It was 8C outside so maybe the summer would be better alright.


It was also the first time I saw 5 trees in the top left!


Anyway, to get to my question.... I also took LeafSpy readings when I started and finished and it doesn't match up with the 13.9kWh/100km. It was more like 15.5kWh/100km (I used 190 gids for 95km's and had 28% left)

Why the 10% discrepency between the dash and what was actually used from the battery according to LeafSpy?

It was daytime, so no lights on. I didn't have heaters or AC on other than heated seats and radio/sat-nav. I can't imagine they would have accounted for much (a few hundred Wh's I'd say).

Any other energy users I'm not thinking of?

Can the dash readout be trusted?

unkel

I'm sure that would be about right. That's how a few people in Germany managed to get Ioniq to 370km (6.6kWh/100km). Mostly slowish regional roads with little enough traffic and it was over 20C iirc. Most EVs would be most efficient at around 50-70km/h.

KCross

It also seems that my State of Health increased back up to 96%. It was at 92% for most of the summer. I think long journeys give the Battery Management System more data to go on and it resets the values.







When new it was at 67Ahr/284 Gids. Now, almost 3yrs later and 50k km's, its at 63Ahr/270 Gids. That level of degradation of the battery isn't even perceivable from a range perspective.

zilog_jones

Maybe the trip computer is slightly overly optimistic, like it is on almost every ICE car.

thierry14

KCross wrote: »

It also seems that my State of Health increased back up to 96%. It was at 92% for most of the summer. I think long journeys give the Battery Management System more data to go on and it resets the values.







When new it was at 67Ahr/284 Gids. Now, almost 3yrs later and 50k km's, its at 63Ahr/270 Gids. That level of degradation of the battery isn't even perceivable from a range perspective.

That's pretty good

50k km is very little mileage for 3 years, you would spend so little on fuel you don't have much saving over ICE.

That's below national average even

I would like to see a Leaf battery after 150k km over 3 years with plenty of fast charging

That's the reason to buy a Leaf imo, cheap running costs and big mileage

KCross

thierry14 wrote: »

That's pretty good

50k km is very little mileage for 3 years, you would spend so little on fuel you don't have much saving over ICE.

That's below national average even

I would like to see a Leaf battery after 150k km over 3 years with plenty of fast charging

That's the reason to buy a Leaf imo, cheap running costs and big mileage

I bought it at a year old and it had only 8000km on it!
I'm doing close to 30k km/yr... plenty savings being had (€2k+/yr)!

The Kwh/100 Km s an average, to get exact you need leaf spy to calculate the exact amount of Kwh used.