LeftieBiker
Posts: 8886
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

The 40KWH Battery Topic

Wed May 02, 2018 10:29 pm

We need a place to post battery info, temperature observations, and other things relating to the new 40kwh pack. There are a few stats scattered in other topics, but having this one should make it easier to keep track of them. Links to the other posts would be a good idea.

When I went to pick up my 2018 SL the other evening, I took advantage of my salesman's need to finish up with other customers to take a quick LeafSpy reading. Here are the main stats (I'll try to post a snap of the screen later):

SOH: 99.59

Hx: 99.48

AH: 114.97

The pack looked extremely well balanced - no shunts at all, IIRC, and all the voltages close. SOC was 95% or so.

https://photos.app.goo.gl/RnFL3g7tvMELhFhC8

Moving on to pack temp observations, I have a suggestion: since the temp gauge is a little...subjective to read, it might be best, when LeafSpy isn't available, to estimate the readings as a percentage, with the far left side of the virtual bar gauge being "0%" and the far right, at the end of the red zone, as 100%. Using that metric, I started the car this evening with the ambient temp at 86 or 87F, a huge rise after a morning low of 46F. The pack was still fairly cool, and I would estimate the gauge was reading "40%" along the scale - somewhat to the left of the middle. I also used an infrared touch-less thermometer to read the exterior (Scarlet) body temp (112F) and a digital thermometer I'd left in the backseat to measure the interior (black/grey seat covers and white trim) temp, which was 104.5F. All of this means little of course, because the pack, with its large thermal mass, hadn't warmed to anywhere near ambient.

It might also be interesting to get other readings of steel body panels (with color noted) in full sun, and interior temps with windows both closed and partially open, along with gauge and LeafSpy readings. One comparison I was able to make today was of my Scarlet Ember Leaf's body in full sun (112F), vs my housemate's "Sea Mist Pearl" (very light green/blue) Prius PHEV (99.5F) also in full sun, behind my car. I'm kind of wishing I'd gone with another Brilliant Silver Leaf after all...
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

webeleafowners
Posts: 501
Joined: Mon Oct 05, 2015 5:37 pm
Delivery Date: 06 Oct 2015
Location: Okanagan Valley British Columbia

Re: The 40KWH Battery Topic

Thu May 03, 2018 6:27 am

Yudaman Leftie. Some of this stuff is beyond me but I’m glad someone is collecting the data. I have to go into Kelowna tomorow so will be taking a 2018 for a test drive. Should be fun.
2015 Smart Electric Drive convertible.
2016 Nissan Leaf SV 30KWh
EV only Family...well except for the big diesel motorhome. :shock:

alozzy
Posts: 1004
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: The 40KWH Battery Topic

Thu May 03, 2018 10:14 am

@webeleafowners Remember to update the Coquihalla thread after the trip to Kelowna. Specifically, it would be interesting to know how many kWh of pack energy you lose from Hope to Merritt and from Merritt to Kelowna, and same for the return trip.

Also, if you can drop in at the Britton Creek rest area and see if they've done any work on DCQC installation, that would be much appreciated :-)
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

Jerryr
Posts: 15
Joined: Mon May 14, 2018 8:18 am
Delivery Date: 14 May 2018
Leaf Number: 307113

Re: The 40KWH Battery Topic

Fri May 18, 2018 9:10 pm

Here’s my 2018 LeafSpy Battery Stat Page after picking up my new leaf and parking it in my driveway.

Just drove it about 40 miles from dealership to Home and hadn’t charged it yet.

SOC was 76%
AHr 113.99
SOH 98.74%
Hx 98.24%

Image

LeftieBiker
Posts: 8886
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: The 40KWH Battery Topic

Fri May 18, 2018 9:50 pm

Thanks for posting that. Where (city/state) do you live?
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

alozzy
Posts: 1004
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: The 40KWH Battery Topic

Sat May 19, 2018 12:03 am

He's in Tampa, Florida
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

LeftieBiker
Posts: 8886
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: The 40KWH Battery Topic

Sat May 19, 2018 3:40 am

That may explain the slightly lower SOH. If he can keep the car in an even slightly cooled garage overnights, I suggest that he do so. Letting the pack cool off may be critical for these cars.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

webeleafowners
Posts: 501
Joined: Mon Oct 05, 2015 5:37 pm
Delivery Date: 06 Oct 2015
Location: Okanagan Valley British Columbia

Re: The 40KWH Battery Topic

Sat May 19, 2018 7:08 am

alozzy wrote:@webeleafowners Remember to update the Coquihalla thread after the trip to Kelowna. Specifically, it would be interesting to know how many kWh of pack energy you lose from Hope to Merritt and from Merritt to Kelowna, and same for the return trip.

Also, if you can drop in at the Britton Creek rest area and see if they've done any work on DCQC installation, that would be much appreciated :-)


Good morning Leftie. We came from the other direction for that trip. We are in Vernon. We will be doing the Coquihala in July though so should be able to take a peak at Britton Creek. Maybe it will be done by then.
2015 Smart Electric Drive convertible.
2016 Nissan Leaf SV 30KWh
EV only Family...well except for the big diesel motorhome. :shock:

DaveinOlyWA
Posts: 12989
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

Sat May 19, 2018 7:12 am

This will be tough to read until I can get it into a graph or chart of some sort but an example. Drive to work, park open air unshaded asphalt, batt temps 65º. Hottest day of the year upper 80's to low 90's depending on location. Car temps about 60-90 mins after peak temp 93º and batt temps were 69º so not a whole lot of difference. Hard to compare since this is not a data set I collected with prev models although I seem to remember temps rising a bit more than a few degrees. Drive home (13 miles, 50% Freeway) brought batt temps to 73º while ambient dropped no lower than 87º
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 5775 miles, 488 GIDs, 38 kwh 113.37 Ahr available, SOH 98.21, Hx 115.75
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

DaveinOlyWA
Posts: 12989
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

Sat May 19, 2018 7:20 am

LeftieBiker wrote:We need a place to post battery info, temperature observations, and other things relating to the new 40kwh pack. There are a few stats scattered in other topics, but having this one should make it easier to keep track of them. Links to the other posts would be a good idea.

When I went to pick up my 2018 SL the other evening, I took advantage of my salesman's need to finish up with other customers to take a quick LeafSpy reading. Here are the main stats (I'll try to post a snap of the screen later):

SOH: 99.59

Hx: 99.48

AH: 114.97

The pack looked extremely well balanced - no shunts at all, IIRC, and all the voltages close. SOC was 95% or so.

https://photos.app.goo.gl/RnFL3g7tvMELhFhC8

Moving on to pack temp observations, I have a suggestion: since the temp gauge is a little...subjective to read, it might be best, when LeafSpy isn't available, to estimate the readings as a percentage, with the far left side of the virtual bar gauge being "0%" and the far right, at the end of the red zone, as 100%. Using that metric, I started the car this evening with the ambient temp at 86 or 87F, a huge rise after a morning low of 46F. The pack was still fairly cool, and I would estimate the gauge was reading "40%" along the scale - somewhat to the left of the middle. I also used an infrared touch-less thermometer to read the exterior (Scarlet) body temp (112F) and a digital thermometer I'd left in the backseat to measure the interior (black/grey seat covers and white trim) temp, which was 104.5F. All of this means little of course, because the pack, with its large thermal mass, hadn't warmed to anywhere near ambient.

It might also be interesting to get other readings of steel body panels (with color noted) in full sun, and interior temps with windows both closed and partially open, along with gauge and LeafSpy readings. One comparison I was able to make today was of my Scarlet Ember Leaf's body in full sun (112F), vs my housemate's "Sea Mist Pearl" (very light green/blue) Prius PHEV (99.5F) also in full sun, behind my car. I'm kind of wishing I'd gone with another Brilliant Silver Leaf after all...



Your batt stats are shockingly similar to every 2018 I have seen.

Mine ahr/SOH/ HX; 115.05 99.66 99.86

Don't know what you consider the most indicative measure but I look at ahr primarily and after 3 days and 152 miles, it started to drop and has been rock steady consistent without fail. There was one day where I lost a big chunk; .76 ahr, .66% SOH. (Hx is super high and seems to be measuring someone else's pack or something... ) but other than that, its been generally .01 per day or less.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 5775 miles, 488 GIDs, 38 kwh 113.37 Ahr available, SOH 98.21, Hx 115.75
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Return to “Batteries & Charging”