danrjones
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Delivery Date: 17 Jun 2019
Location: Ridgecrest, CA

Re: The 40KWH Battery Topic

Mon May 13, 2019 3:41 pm

So far - knock on virtual wood here - I've noticed my SOH decreasing by about 0.01 about every 2 days, regardless of miles. I guess that would come out to a 2% decrease per year, assuming my drop is even statistically relevant at this point. That would be a 20% loss of SOh in the 10 year warranty period, which is not enough to get a new battery. of course we aren't even close to the hottest time of the year yet. Only been in the low 90's so far.

I have been googling for 2020 leaf info but haven't found much yet. My plan since I got such a good deal on this one is to trade it in in a year or two for a new one with more range, so I'm curious what 2020 will bring.
2018 Leaf SV Pearl White with Tech and All Weather, Purchased New on 5/3/19

LeftieBiker
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Re: The 40KWH Battery Topic

Mon May 13, 2019 3:53 pm

I would expect your degradation to be less linear and more dependent on temperature, so little capacity loss in the cooler months, and much more in the hot months. How much more? I don't know - I tried my best to keep my car's pack cool in the hottest weather, and I have a 40kwh Leaf. Please keep us posted, maybe in a new, 62kwh battery topic...?
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
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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 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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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.
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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
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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: 236
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 SL - In Service 2019 JUN - 2020 APR 94.3 SOH
2018 SV - In Service 2019 JAN - 2020 APR 92.0 SOH
2013 SL - In Service 2013 FEB, Sold 2018 JUN (50,050 mi) - 4 Bars Lost (44,255 mi)
Location: Raleigh, NC

DaveinOlyWA
Posts: 15163
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Leaf Number: 319862
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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 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 14,342.8 mi, 93.16% SOH
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WetEV
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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: 15163
Joined: Sat Apr 24, 2010 7:43 pm
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Leaf Number: 319862
Location: Olympia, WA
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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 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 14,342.8 mi, 93.16% SOH
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