kovadam
Posts: 30
Joined: Wed Jun 06, 2018 12:07 am
Delivery Date: 28 Sep 2018
Location: Hungary, Europe

Re: The 40KWH Battery Topic

Tue May 14, 2019 1:50 am

So it seems I will be the first one, who gets a new battery pack after 4-5 years for the 40kWh Leaf.

The SOH drop did not stopped, as written above, it started to decline in bigger steps from 96.91% in just 4 days. Now I'm at 95.71%. The last 0.07% happed in one hour standing the car in the parking lot (wake up with 95.78% SOH and 100% SOC then drove the kids to school, etc, I drove about 30km, then left the car for 1 hour parking, then the SOH was 95.71%) . The temperature is currently 8°C here, so it is not the heat (battery pack between 16 and 20°C), it's raining, and quite cold.

I did not QC-d the car at least for 2 weeks, and then also only for 10-15 minutes to reach 50-60% SOC. The Hx floats around 114.18-114.20%.

So the car has 13.500km, and is about 6 months old, and already lost over 4% SOH. So 1 year = 8% SOH loss, 2 years, and I get 1 bar capacity loss. Then every year 1 bar capacity minus, so when the car will be 5 years old, I'm down to 66%, and can ask for a warranty replacement.

Seems really bad for me.... :(

LeftieBiker
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Location: Upstate New York, US

Re: The 40KWH Battery Topic

Tue May 14, 2019 1:56 am

It may slow, as mine did. It may not matter in the long run, but a QC session on a cool day or night may bump it up again.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

kovadam
Posts: 30
Joined: Wed Jun 06, 2018 12:07 am
Delivery Date: 28 Sep 2018
Location: Hungary, Europe

Re: The 40KWH Battery Topic

Tue May 14, 2019 2:27 am

Bump it up? You mean the SOH? Or Hx?

The degradation was never fast, there were 2 times, when I lost 0.5%, but usually it was 0.01% / day or couple of days (like 2-3 days -0.01%). But now, in 4 days I lost more than 1.2%, in quite big chunks, so this started to worry me. I'm curious when I drive home from work, what will be the SOH. Now the car is in a garage, outside about 8-10°C inside may be 15°C. SOC is around 85%, SOH was 95.71% when I parked. Will see and report when I leave the garage.

LeftieBiker
Moderator
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Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: The 40KWH Battery Topic

Tue May 14, 2019 4:24 am

I mean "bump up the SOH." Although that may not even be possible with the 40kwh Leaf - the BMS may prohibit it. Or not.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

jdcbomb
Posts: 199
Joined: Tue May 19, 2015 12:17 pm
Delivery Date: 18 May 2015

Re: The 40KWH Battery Topic

Tue May 14, 2019 6:22 am

Im curious to know if there are 18/19 MY that have more than 40,000 mi to see where their SOH is (besides the one in Phoenix that apparently still had 92 pct, but that one I recall was sitting in extreme heat last year and driven hard).
2018 Leaf SV - In Service 2019 January - Location: Raleigh, NC.
2013 Leaf SL - Original In Service 2013 February - Bar Losses: 2016.10.17 - 25,843 Miles -- 2017.06.23 - 32,080 Miles -- 2018.04.10 - 37,000 Miles -- 4th: 2018.09.23 - 44,255 Miles

DaveinOlyWA
Posts: 14144
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: The 40KWH Battery Topic

Tue May 14, 2019 6:29 am

Jerryr wrote:Just as a point of reference. My brand 2019 SL Plus w/62 kWh battery, manufacture date 2/19. 46 miles on odometer after driveling it home from dealership.

Image

Image
So this is not a full charge then.

If you get the chance post the same at full charge.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
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WetEV
Posts: 3130
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: The 40KWH Battery Topic

Tue May 14, 2019 6:49 am

kovadam wrote:So the car has 13.500km, and is about 6 months old, and already lost over 4% SOH. So 1 year = 8% SOH loss, 2 years, and I get 1 bar capacity loss. Then every year 1 bar capacity minus, so when the car will be 5 years old, I'm down to 66%, and can ask for a warranty replacement.

Seems really bad for me.... :(
The first 5% of capacity is often lost faster than later capacity. Not linear.

Image
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red
2019 eTron Blue

DaveinOlyWA
Posts: 14144
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: The 40KWH Battery Topic

Tue May 14, 2019 6:55 am

In the previous 3 LEAFs, I saw the opposite where it maintained "new" status for probably (don't have specific stats on the 2011) the first 6 months or more. The 2016 went 14 months and over 29,000 miles at 100% SOH and 99.64% of its original ahr
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

WetEV
Posts: 3130
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: The 40KWH Battery Topic

Tue May 14, 2019 7:06 am

DaveinOlyWA wrote:In the previous 3 LEAFs, I saw the opposite where it maintained "new" status for probably (don't have specific stats on the 2011) the first 6 months or more. The 2016 went 14 months and over 29,000 miles at 100% SOH and 99.64% of its original ahr
Yes, but you do many QCs, which increase the estimated SOH.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red
2019 eTron Blue

kovadam
Posts: 30
Joined: Wed Jun 06, 2018 12:07 am
Delivery Date: 28 Sep 2018
Location: Hungary, Europe

Re: The 40KWH Battery Topic

Tue May 14, 2019 7:08 am

Ok, got the new SOH, its 95.64, 0.07 lower, than 8 hours before... either the BMS is dead, or the battery cells are dead. Since I have issues with epedal regen also, I think the BMS is buggy somewhere. Now I need to wait until it dies so I get a replacement...

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