BoulderLeaf wrote:lorenfb wrote:Leaf Plus has more weight and is thus less efficient, which results in increased motor power which then results in higher battery current which then causes more battery heat I^2 X R. So will battery degradation be greater for the Plus?

Not necessarily. It all depends on R (the internal resistance of the battery), and from all information available when the 60kWh pack was first showcased the internal resistance has been improved considerably.

Yes, it depends on the actual internal battery resistance data, and not guessing. Where're your data? It can be easily determined using

LeafSpy. A MNL member (DaveinOlyWA) did an actual test last year on his 2018 40 kWh Leaf and the internal resistance was actually a little

higher (~ .100 ohms - 100 mohms) than my 2013 Leaf. So without an improvement in battery resistance to offset the additional battery

current (I^2) required because of the added battery weight of the Leaf Plus, the average battery temperature will be higher and the

Leaf Plus will be less efficient. This then can have an effect of increasing battery degradation on the Leaf Plus.

Here's my 2013 Leaf Data:

11/20 -13,700 miles, 76 mohms per LeafDD, 20 Deg, 73% SOC

11/27 -13,800 miles, 67 mohms per LeafDD, 25 deg, 63% SOC

11/30 - 13,900 miles, 56 mohms per LeafDD, 27 deg, 71% SOC

12/2 - 14.100 miles, 55 mohms per LeafDD, 28 deg, 67% SOC

12/16 - 14,500 miles, 89 mohms per LeafDD, 15 deg, 93% SOC

12/27/14 - 14,800 miles, 103 mohms per LeafDD, 11 deg, 24% SOC

3/10 - 17,400 miles, 60 mohms per LeafDD, 30 deg, 73% SOC

3/14 - 17, 550 miles, 56 mohms per LeafDD, 32 deg, 47% SOC

4/14 - 19,100 miles, 59 mohms per LeafDD, 25 deg. 38% SOC

5/4 - 19,989 miles, 64 mohms per LeafDD, 24 deg. 48% SOC

5/15 - 20,400 miles, 73 mohms per LeafDD, 20 deg. 41% SOC

5/22 - 20,700 miles, 58 mohms per LeafDD, 28 deg. 50% SOC

12/10/15 - 28,000 miles, 90 mohms per LeafDD, 19 deg. 92% SOC

4/5 - 32,000 miles, 74 mohms per LeafDD, 24 deg, 55% SOC

5/16 - 33,700 miles, 89 mohms per LeafDD, 22 deg, 47% SOC

5/16 - 33.700 miles, 58 mohms per LeafDD, 31 deg, 76% SOC

10/5 - 39,300 miles, 100 mohms per LeafDD, 22 deg, 50% SOC

10/6 - 39,400 miles, 61 mohms per LeafDD, 30 deg, 51% SOC

10/7 - 39,500 miles, 80 mohms per LeafDD, 25 deg, 56% SOC

10/15 - 40,000 miles, 71 mohms per LeafDD, 27 deg, 45% SOC

10/30 - 41,000 miles, 74 mohms per LeafDD, 23 deg, 66% SOC

12/26/16 - 43,000 miles, 110 mohms per LeafDD, 13 deg, 77% SOC

6/10/17 - 49,600 miles, 89 mohms per LeafDD, 19 deg, 70% SOC

7/1/17 - 51,000 miles, 62 mohms per LeafDD, 33 deg, 44% SOC

8/15/17 - 53,400 miles, 61 mohms per LeafDD, 35 deg, 57% SOC

4/2/18 - 62,100 miles, 110 mohms per LeafDD, 18 deg, 94% SOC

6/13/18 - 65,000 miles, 84 mohms per LeafDD, 26 deg, 52% SOC

8/13/18 - 67,000 miles, 80 mohms per LeafDD, 26 deg, 91% SOC

9/14/18 - 68,000 miles, 84 mohms per LeafDD, 27 deg, 57% SOC

10/30/18 - 70,000 miles, 93 mohms per LeafDD, 22 deg, 84% SOC

11/9/18 - 70,000 miles, 104 mohms per LeafDD, 22 deg, 89% SOC

11/30/18 - 70,400 miles, 88 mohms per LeafDD, 23 deg, 88% SOC

12/6/18 - 70,800 miles, 116 mohms per LeadDD, 13 deg, 33% SOC

1/30/18 - 72,300 miles, 86 mohms, per LeadDD, 23 deg, 45% SOC

The above reporting needs to be done on the later Leaf batteries. I plan on doing similar tests on my 2019 40 kWh Leaf.

Again, where are these data you reference;

from all information available when the 60kWh pack was first showcased the internal resistance has been improved considerably

#1 Leaf SL MY 9/13: 74K miles, 48 Ahrs, 5.2 miles/kWh (average), Hx=70, SOH=78, L2 - 100% > 1000, temp < 95F, (DOD) > 20 Ahrs

#2 Leaf SL MY 12/18: 4.5K miles, 115 Ahrs, 5.5 miles/kWh (average), Hx=98, SOH=99, DOD > 20%, temp < 105F