The 62kWh Battery Topic

[DougWantsALeaf]

Amazing your SoH hasn't dropped in a year. What is the car's aHr for the 98% SoH?

When my 2019 was about 3 months driven in Auguat 2020 (bought it as a 2019 left over in the height of covid). My SOH was 98.2% and aHr was 173.22.

 

[Jeffrey Stumpf]

For my 2024 Leaf SV Plus; At last full charge, before starting out for the day: The dashboard shows 100% charge, on 12/1/2024 at 08:46 AM, & the outside temp= 30 F

LeafSpy Pro shows:
SOC=95.6% (Dashboard 100%, a 4.6% buffer)
GIDS= 728, GIDS%= 92.6%
60+ kWh
AHr= 169.88
SOH= 98.14%
Hx= 80.75%
HV Battery voltage= 399.72V, drawing 11.52A
odo=9,796 mi
With 47 QCs & 400 L1/L2s
Bat cell deltas= 8 mV

 

[DougWantsALeaf]

We would need a few more cars measurements in, but this suggests a debating of the Leaf 60kWh pack from the 62kWh pack of about 3.4aHr. About 1.5 kWh buffered out. I am curious now if the 24/25 60 packs will see slower degradation as a result.

Some articles I have seen have suggested the newer batteries (across the industry including Tesla not just Nissan) are now losing capacity at about 1% per year vs. 2% per year from packs 5-6 years ago. 2% is pretty right on for my 2019 Leaf Pluses.

 

[BillAinCT]

That's a very stable SOH for one year in. 47 QC didn't seem to make a difference either. When my 2022 crossed 9700 miles I was around 95.75 SOH with 1/2 the number of QCs.

 

[Gusset]

2019 Leaf SV+. I've had it for about 7 weeks. Actual odometer reading is 36k, not the 22k LeafSpy is showing here. In case it matters, this was taken by a friend after a 15 minute drive. Any thoughts or observations on this car's battery condition?

 

[BaronLithium]

Adding another leafspy grab for the bucket. 2022 SV Plus.

 

[Jeffrey Stumpf]

View attachment 5880

2019 Leaf SV+. I've had it for about 7 weeks. Actual odometer reading is 36k, not the 22k LeafSpy is showing here. In case it matters, this was taken by a friend after a 15 minute drive. Any thoughts or observations on this car's battery condition?

 

[Jeffrey Stumpf]

LeafSpy Pro has a setting to convert the odometer from Kilometers to miles by the way.

 

[Ianlighting]

Adding another leafspy grab for the bucket. 2022 SV Plus.


View attachment 5881

I have a similar looking leafspy view, showing just a single cell (55) lower than an otherwise very nicely balanced pack. The difference on mine at about 50% SOC is about 60mV.

Do you take any active measures to deal with yours? Do you think its a cause for concern?

 

[Jeffrey Stumpf]

If you fully charge to a dashboard 100% and the delta is in the low double digits. That’s a start. If you also screen record and do a high acceleration drive and it’s still in the low double digits, I would not worry. If you are concerned, take it to your Nissan Dealership and ask them to do a HV Battery check/inspection. It may cost you a few dollars. I fully charge my SV Plus at least once a week. In the winter, i typically plug it in every night, and it is typically at 100% by 7 AM, my vehicle timer is setup to starting at midnight, with Full Charge Priority on.

 

[Pepperoni]

I have no numbers to offer but here is my tale, almost 3 weeks ago the dreaded turtle popped up on the dashboard of our 2022 SL+ (w/13,500 miles) along with the low power warning and no ePedal. I disconnected the 12v to reset things, charged the 12v and drove it to the dealership 65 miles away the next morning. It was there for 2&1/2 weeks getting the charging module and then one battery cell replaced and now works fine.
I am a little concerned about how this battery might behave in the future, if these parts failed so early in it’s life, what might be up the road? I truly like the Leaf but at 75 years old with MS, getting to a dealership 65 miles away is starting to be a bigger deal. We have a Honda dealer in town who has some very tempting year end deals on the Prologue, I'm considering making a switch while the Leaf is still worth something. Any thoughts?

 

[Jeffrey Stumpf]

The reason there are Warrantties

I have a similar looking leafspy view, showing just a single cell (55) lower than an otherwise very nicely balanced pack. The difference on mine at about 50% SOC is about 60mV.

Do you take any active measures to deal with yours? Do you think its a cause for concern?

I have no numbers to offer but here is my tale, almost 3 weeks ago the dreaded turtle popped up on the dashboard of our 2022 SL+ (w/13,500 miles) along with the low power warning and no ePedal. I disconnected the 12v to reset things, charged the 12v and drove it to the dealership 65 miles away the next morning. It was there for 2&1/2 weeks getting the charging module and then one battery cell replaced and now works fine.
I am a little concerned about how this battery might behave in the future, if these parts failed so early in its life, what might be up the road? I truly like the Leaf but at 75 years old with MS, getting to a dealership 65 miles away is starting to be a bigger deal. We have a Honda dealer in town who has some very tempting year end deals on the Prologue, I'm considering making a switch while the Leaf is still worth something. Any thoughts?

If things are going to fail, they typically fail early in the life of the components. That’s why there are warranties and Lemon laws. It’s up to you on if you bail out on the Leaf. Once the early failures are behind you, if they occur, history shows, everything else typically will last past the warranty period.

 

[Gusset]

Could some of the more experienced/knowledgeable folks give me some thoughts on these LeafSpy captures?

2019 Leaf SV+. Actual odometer ~37k miles.



The 34mV capture was taken while climbing a 10-15% grade hill at a steady 55mph (per GIS map), probably a 3/4 mile length. This was the largest number I saw. During this climb, it varied, spending much of the time in the mid-low 20s and occasionally moving into the low 30s. The 16mV capture was taken about 3 minutes later when I'd just parked in the garage.

I didn't include it here, but maintaining 50mph on level ground returned mid-high teens.

To me, the battery seems to be in good shape, but there's more to things than just the max voltage difference. I don't know what some of the other numbers ought to be at for a car of this age.

Any comments/questions appreciated. Thx.

 

[cwerdna]

The odometer vs. LeafSpy mismatch is probably fixable via the setting at https://mynissanleaf.com/threads/leaf-spy-odometer-reading.35079/#post-639880.
23052 miles = 37098 km

 

[civicwithacord]

Could some of the more experienced/knowledgeable folks give me some thoughts on these LeafSpy captures?

2019 Leaf SV+. Actual odometer ~37k miles.

View attachment 6217View attachment 6218

The 34mV capture was taken while climbing a 10-15% grade hill at a steady 55mph (per GIS map), probably a 3/4 mile length. This was the largest number I saw. During this climb, it varied, spending much of the time in the mid-low 20s and occasionally moving into the low 30s. The 16mV capture was taken about 3 minutes later when I'd just parked in the garage.

I didn't include it here, but maintaining 50mph on level ground returned mid-high teens.

To me, the battery seems to be in good shape, but there's more to things than just the max voltage difference. I don't know what some of the other numbers ought to be at for a car of this age.

Any comments/questions appreciated. Thx.

 

[civicwithacord]

Great battery!
9x% state of health, 79% internal resistance, fairly low deviation even on hills. Cool!
Keep charge between 40-80 with one 100% charge each month, ideally.

 

[Gpearce]

Great battery!
9x% state of health, 79% internal resistance, fairly low deviation even on hills. Cool!
Keep charge between 40-80 with one 100% charge each month, ideally.

Would the charging advice apply to 2011-12 also?

 

[civicwithacord]

Would the charging advice apply to 2011-12 also?

Absolutely. Again, those are the ideals, but many ppl use them 100 down to 20.

 

[Dooglas]

Would the charging advice apply to 2011-12 also?

I'd agree that the advice would apply, but realistically the '11-'12 battery pack was more prone to degradation than subsequent upgrades to the battery chemistry of the LEAF. That means that the result wouldn't be the same. Of course, an original '11-'12 battery pack is now 12 years old or more and likely already has experienced substantial degradation so there is only so much you can do. Different discussion if you are talking about an '11-'12 body and a newer battery pack.