Nissan Leaf Fast Charging Data.

Started charging at the Carlow Town fast charger at about 22% charge.

Here's the stats of the amount of power going into the battery at different percentages.

Notice at the end at about 80 odd % the amount of power going into the battery is about 12 Kw which is about twice what I observed from the Newlands cross charge point in winter @ about 0-5 deg C ambient temp and battery temp about 8-10 degrees C at an 80% charge, in winter at 80% can be as low as 6 Kw.

Charging in Summer has a noticeable decrease in charge time.

I started with a battery temperature of 24 degrees C and ended with 31 degrees C. Temp today at that time was about 18 degrees C. I finished with 6 battery bars.

Multiple fast charging in one day will no doubt still heat the battery a lot and the battery in the MK 1.5 is seemingly lasting much longer and tolerating a lot more fast charging so NEC may have altered the chemistry to either withstand more heat and/or to withstand many more charge/discharge cycles to which would balance out the heat related stresses. Unfortunately we may never know what they've changed and I have not got a MK I Leaf to test how the battery heats while fast charging.

So below are screenshots of the Leafspy Data.

Starting Power at 22% charge followed by screenshots of power to the battery at various charge percentages.



30%



59%



59%



64% (notice the ifference between 59 and 64%) ?



80%

It took 24 mins to get from 22% to 80.

Battery report after 12,200 Kms or 7,600 miles.

A brand new battery has about 67.4 AH capacity and my battery is reading 64.7 but I've noticed this varies quiet a bit. Another time it could be 66.7 and so on.

Notice the blue bars in the pic below ? well this means that balancing is taking place bleeding off the excess voltage of the high cells. For anyone who thinks they've to charge to 100% to balance the cells.

This tells me that after 6.2 miles form the carlow Town fast charger my efficiency was 4.5 miles per Kwh.
with the AC on.

So with 21 Kwh usable on a full charge and at this efficiency I should get 94.5 miles range for this particular driving speed and conditions. 4.5 miles multiply by 21 Kwh usable.