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DuncanCunningham
Posts: 518
Joined: Thu Mar 26, 2015 10:02 am
Delivery Date: 15 Apr 2015
Location: Bountiful, UT

Re: Yikes, degradation is looking bad (2018 Leaf)

Mon May 07, 2018 10:54 am

petkill just keep recording the numbers.. it's cool to geek out on it.. let's see how the trends goes by this time next year.

sage? chill man.
Statler: Wake up you old fool. You slept through the show.
Waldorf: Who's a fool? You watched it.

2015 Leaf S (leased until May 2018, Bought out in Jan 2017)
2012 Leaf SL (purchased May 2015)

odd84
Posts: 4
Joined: Fri Apr 27, 2018 11:11 am
Delivery Date: 27 Apr 2018

Re: Yikes, degradation is looking bad (2018 Leaf)

Thu May 10, 2018 6:00 pm

I've been recording my Leaf Spy stats weekly since picking up the car in February.

After 3 months, SOH has gone from 99.66% to 99.08%.

I've put 2300 miles, 6 QCs and 72 L2 charges on the car so far.

Evoforce
Posts: 827
Joined: Wed Mar 04, 2015 9:58 pm
Delivery Date: 28 Feb 2015
Location: Fountain Hills Arizona

Re: Yikes, degradation is looking bad (2018 Leaf)

Thu May 10, 2018 9:17 pm

odd84 wrote:I've been recording my Leaf Spy stats weekly since picking up the car in February.

After 3 months, SOH has gone from 99.66% to 99.08%.

I've put 2300 miles, 6 QCs and 72 L2 charges on the car so far.


I wouldn't bother with it that often. For me, once a month was enough and only because I was trying to help this forum compare. I will bet that almost no one has even reviewed those old threads from the past.

I was in particular tracking degradation between two practically identical cars but with different batteries. One had a lizard battery and the other had the original chemistry. The result in Arizona was not much difference. After both cars had new batteries installed, and in a different observation between the cars, result is, driving a car a medium amount and the other a small amount over the last year has shown that there is almost the same degradation between the two.

These are older 2011 Leafs. We look forward to your tracking the 2018 Leaf. I am not sure you want to track it in such small increments. The numbers do fluctuate up and down. Good luck!
*2011 Leaf 1 bought 2/28/15 @ 28,000ish mi 10 bar (8 bars @ 11/25/15 @ 37,453 ) (New lizard @ 39,275 mi @ 1/20/2016) Now 52,166 mi.
*Tesla Model S 61,000 mi
*2011 Leaf 2 bought 4/28/15 @ 24,000ish mi 12 bar (new lizard Dec. 2014 @ 22,273 mi) Now 35,485 mi

powersurge
Posts: 1045
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Yikes, degradation is looking bad (2018 Leaf)

Fri May 11, 2018 6:52 am

Yes, I agree that it is not necessary to measure every week. you will waste a lot of time and worry even more with minor fluctuations....

its like weighing yourself 3x/ day when you are on a diet. Not necessary. If you want, every 3-6 months is good....

DaveinOlyWA
Posts: 13196
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Yikes, degradation is looking bad (2018 Leaf)

Fri May 11, 2018 7:58 am

odd84 wrote:I've been recording my Leaf Spy stats weekly since picking up the car in February.

After 3 months, SOH has gone from 99.66% to 99.08%.

I've put 2300 miles, 6 QCs and 72 L2 charges on the car so far.


Take out a single day and mine would have been almost identical to yours. details available in blog
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 11,987 miles, 485 GIDs, 37.6 kwh 110.89 Ahr , SOH 96.00, Hx 115.22
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

DaveinOlyWA
Posts: 13196
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Yikes, degradation is looking bad (2018 Leaf)

Fri May 11, 2018 8:01 am

tuningin wrote:At 3000 miles, according to LeafSpy I’ve already lost 2.7%. It’s not even summer yet. Average temp of 70 degree ambient. Average battery temp 82 degrees. No DCFC. Usually charging to 80% with weekly 100% to cell balance and immediately driving so it doesn’t stay at hat high SOC.


Stop charging to full to balance cells. Previous LEAF packs needed this done several days in a row to see any change anyway. Once a week won't do much. Since I have had my LEAF, I have charged to full 14 times but only to collect a baseline on GIDs and ahr available. I don't plan to charge for anything other than road trips. Normal day to day? Don't need to.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 11,987 miles, 485 GIDs, 37.6 kwh 110.89 Ahr , SOH 96.00, Hx 115.22
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

tuningin
Posts: 59
Joined: Fri Jan 19, 2018 2:50 pm
Delivery Date: 19 Jan 2018
Location: Southern California

Re: Yikes, degradation is looking bad (2018 Leaf)

Mon May 14, 2018 5:14 pm

DaveinOlyWA wrote:
tuningin wrote:At 3000 miles, according to LeafSpy I’ve already lost 2.7%. It’s not even summer yet. Average temp of 70 degree ambient. Average battery temp 82 degrees. No DCFC. Usually charging to 80% with weekly 100% to cell balance and immediately driving so it doesn’t stay at hat high SOC.


Stop charging to full to balance cells. Previous LEAF packs needed this done several days in a row to see any change anyway. Once a week won't do much. Since I have had my LEAF, I have charged to full 14 times but only to collect a baseline on GIDs and ahr available. I don't plan to charge for anything other than road trips. Normal day to day? Don't need to.


Charge to full everyday or don't charge to full unless for road trips. I'm not sure I'm following what you are recommending.
Daily Commuter:
2018 Nissan Leaf SV w/Tech

Other Car:
2018 Tesla Model 3 LR

DaveinOlyWA
Posts: 13196
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Yikes, degradation is looking bad (2018 Leaf)

Mon May 14, 2018 6:38 pm

tuningin wrote:
DaveinOlyWA wrote:
tuningin wrote:At 3000 miles, according to LeafSpy I’ve already lost 2.7%. It’s not even summer yet. Average temp of 70 degree ambient. Average battery temp 82 degrees. No DCFC. Usually charging to 80% with weekly 100% to cell balance and immediately driving so it doesn’t stay at hat high SOC.


Stop charging to full to balance cells. Previous LEAF packs needed this done several days in a row to see any change anyway. Once a week won't do much. Since I have had my LEAF, I have charged to full 14 times but only to collect a baseline on GIDs and ahr available. I don't plan to charge for anything other than road trips. Normal day to day? Don't need to.


Charge to full everyday or don't charge to full unless for road trips. I'm not sure I'm following what you are recommending.


Charging to full to balance cells is not needed.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 11,987 miles, 485 GIDs, 37.6 kwh 110.89 Ahr , SOH 96.00, Hx 115.22
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

NavyCuda
Posts: 131
Joined: Wed Jun 24, 2015 9:14 pm
Delivery Date: 24 Jun 2015
Leaf Number: 329051

Re: Yikes, degradation is looking bad (2018 Leaf)

Mon May 21, 2018 2:28 am

DaveinOlyWA wrote:
tuningin wrote:
DaveinOlyWA wrote:
Stop charging to full to balance cells. Previous LEAF packs needed this done several days in a row to see any change anyway. Once a week won't do much. Since I have had my LEAF, I have charged to full 14 times but only to collect a baseline on GIDs and ahr available. I don't plan to charge for anything other than road trips. Normal day to day? Don't need to.


Charge to full everyday or don't charge to full unless for road trips. I'm not sure I'm following what you are recommending.


Charging to full to balance cells is not needed.


This is bad advice. Balancing of cells is cruical to the long term lifespan of any multicell battery.

DaveinOlyWA
Posts: 13196
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Yikes, degradation is looking bad (2018 Leaf)

Mon May 21, 2018 5:56 am

NavyCuda wrote:
DaveinOlyWA wrote:
tuningin wrote:
Charge to full everyday or don't charge to full unless for road trips. I'm not sure I'm following what you are recommending.


Charging to full to balance cells is not needed.


This is bad advice. Balancing of cells is cruical to the long term lifespan of any multicell battery.


This is true and the reason why cells are balancing all the time. The benefit of top end balancing is for maximum range but it heavily outweighed by the risk of greater degradation
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 11,987 miles, 485 GIDs, 37.6 kwh 110.89 Ahr , SOH 96.00, Hx 115.22
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

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