DaveinOlyWA
Posts: 13847
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 8:34 am

webeleafowners wrote:So, I am not following. Can someone summarize.

* Am I to understand that there is a recall type campaign that somehow affects the BMS?

* Is the degradation on the 2016 batteries real or is it just reporting incorrectly.

* Does this fix somehow restore the battery or just prevent further degradation.

Please be patient with me. Reading various sources and not seeing any consistency.

Thanks all.

John



Its SW so no battery fix.

BMS is not reporting pack true capacity which means it could;

Restrict access of "good pack" to the car lowering range

Allow damage to pack because it "lost track" of pack's status.


Finally; all Li Ion packs degrade so yeah, 30 kwh packs are really degrading but it possible that ;

The degradation is not as bad as the BMS is reporting
Degradation is being caused by the BMS mismanagement.
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;

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LTLFTcomposite
Posts: 4669
Joined: Fri Apr 23, 2010 6:06 pm
Delivery Date: 10 Dec 2011
Leaf Number: 5926
Location: Central FL

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 9:07 am

I see, it was a software problem, but it only showed up in warm climates. Makes perfect sense.
LTL
White 2012 SV delivered 10 Dec 2011 returned 25 Nov 2014 replaced with stopgap ICE Sentra
[35 months] [35K miles] [9 Bars]
2013 Volt replaced after 36 months/30k miles with ICE Rogue
2016 SV-adjacent May 2016 lost 4th bar March 2018

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JPWhite
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Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 10:35 am

LTLFTcomposite wrote:I see, it was a software problem, but it only showed up in warm climates. Makes perfect sense.


Reading the comments here and Nissan's response, I am feeling a sense of deja vue.

SOS, different battery pack.
--
JP White
http://jpwhitenissanleaf.com
Blue SL-e, Res 4/22/10, Ord 3/29/11, Del 7/30/11
110,000 Miles.
Lost 5 Capacity bars
7/18/13 (29,206), 8/25/14 (51,728), 7/12/15 (71.108), 5/12/16 (88,362), 10/17/16 (96,532)
New Battery 12/3/16 (98,956)

Overheatingleaf
Posts: 8
Joined: Thu Jun 14, 2018 12:50 pm
Delivery Date: 14 Jun 2018
Leaf Number: 313678

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 1:11 pm

Hey guys. Long time lurker, figured I might finally have something valuable to contribute. 2016 sv with 28,000 miles on it in Phoenix Arizona. I just lost my 4th capacity bar this morning. Came here to check on the wait time for batteries (been watching this thread since my first bar got lost), and saw the bms upgrade information.

So I'm taking the car in tomorrow morning to have the battery looked at. Didn't know about the recall until I started reading about it here. So I imagine they're probably going to do the bms software update, and send me on my way. Figured I'd offer up some data for those that are curious. I'll charge up tonight, and put my leafspy stats when it's done. And depending on what they do I can come back and post each morning after charging for a couple weeks, if that's useful to you all.

DaveinOlyWA
Posts: 13847
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 1:14 pm

Overheatingleaf wrote:Hey guys. Long time lurker, figured I might finally have something valuable to contribute. 2016 sv with 28,000 miles on it in Phoenix Arizona. I just lost my 4th capacity bar this morning. Came here to check on the wait time for batteries (been watching this thread since my first bar got lost), and saw the bms upgrade information.

So I'm taking the car in tomorrow morning to have the battery looked at. Didn't know about the recall until I started reading about it here. So I imagine they're probably going to do the bms software update, and send me on my way. Figured I'd offer up some data for those that are curious. I'll charge up tonight, and put my leafspy stats when it's done. And depending on what they do I can come back and post each morning after charging for a couple weeks, if that's useful to you all.


If you could post some QC charge curves, that would be great.
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;

Overheatingleaf
Posts: 8
Joined: Thu Jun 14, 2018 12:50 pm
Delivery Date: 14 Jun 2018
Leaf Number: 313678

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 1:23 pm

DaveinOlyWA wrote:
Overheatingleaf wrote:Hey guys. Long time lurker, figured I might finally have something valuable to contribute. 2016 sv with 28,000 miles on it in Phoenix Arizona. I just lost my 4th capacity bar this morning. Came here to check on the wait time for batteries (been watching this thread since my first bar got lost), and saw the bms upgrade information.

So I'm taking the car in tomorrow morning to have the battery looked at. Didn't know about the recall until I started reading about it here. So I imagine they're probably going to do the bms software update, and send me on my way. Figured I'd offer up some data for those that are curious. I'll charge up tonight, and put my leafspy stats when it's done. And depending on what they do I can come back and post each morning after charging for a couple weeks, if that's useful to you all.


If you could post some QC charge curves, that would be great.


Sorry to sound dumb, but I'm not sure what a QC charge curve is. I'm going to be QC charging it in a few hours, so I can grab the data from that, if you can give me a bit more info.

Overheatingleaf
Posts: 8
Joined: Thu Jun 14, 2018 12:50 pm
Delivery Date: 14 Jun 2018
Leaf Number: 313678

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 1:25 pm

Oh also, it's at about 40% right now. I can either QC it at that, or on my way home I can QC it at pretty close to 0 if either is better.

DaveinOlyWA
Posts: 13847
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 1:32 pm

Overheatingleaf wrote:
DaveinOlyWA wrote:
Overheatingleaf wrote:Hey guys. Long time lurker, figured I might finally have something valuable to contribute. 2016 sv with 28,000 miles on it in Phoenix Arizona. I just lost my 4th capacity bar this morning. Came here to check on the wait time for batteries (been watching this thread since my first bar got lost), and saw the bms upgrade information.

So I'm taking the car in tomorrow morning to have the battery looked at. Didn't know about the recall until I started reading about it here. So I imagine they're probably going to do the bms software update, and send me on my way. Figured I'd offer up some data for those that are curious. I'll charge up tonight, and put my leafspy stats when it's done. And depending on what they do I can come back and post each morning after charging for a couple weeks, if that's useful to you all.


If you could post some QC charge curves, that would be great.


Sorry to sound dumb, but I'm not sure what a QC charge curve is. I'm going to be QC charging it in a few hours, so I can grab the data from that, if you can give me a bit more info.


The "graphing" screen has several options. simply tap the screen to change them. While charging, one option that is available is the charging screen which will show charging speed, SOC and temperature over time.

At the end of the charge, I usually screenshot it. You "could" also create your own graph with the data logs but the screenshot is... "easier" :)
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;

Overheatingleaf
Posts: 8
Joined: Thu Jun 14, 2018 12:50 pm
Delivery Date: 14 Jun 2018
Leaf Number: 313678

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 1:35 pm

Cool, I'll take a look at that, and post my results. Thanks.

Overheatingleaf
Posts: 8
Joined: Thu Jun 14, 2018 12:50 pm
Delivery Date: 14 Jun 2018
Leaf Number: 313678

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Thu Jun 14, 2018 3:40 pm

Just got done with the QC. I think there's a problem with my Bluetooth adapter. It kept disconnecting, and I'd have to pull it out and put it back in to get it to connect again. But I think it has the relevant information, maybe just ignore the first few minutes of the charge.

https://photos.app.goo.gl/6zd9B6oApT2RxC389

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