Amped
Posts: 42
Joined: Wed Nov 30, 2016 5:46 pm
Delivery Date: 15 Nov 2012
Leaf Number: 018515
Location: MA

Re: Capacity Loss on 2011-2012 LEAFs

Sat Aug 12, 2017 8:18 am

fbnella wrote:Well, I made it with 3 days to spare. It dropped the 4th bar over the weekend and I had it verified at the dealer this morning. They ordered the new battery and it should be ready too swap out next week.

47,588
43.31 AHr
66% SOH
44.94 Hx



This is great news! Congrats!
2012 SL. Clippercreek CS40-SG2. Battery replaced 10/10/17

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RegGuheert
Posts: 5608
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Capacity Loss on 2011-2012 LEAFs

Mon Aug 28, 2017 6:20 am

fbnella wrote:Well, I made it with 3 days to spare. It dropped the 4th bar over the weekend and I had it verified at the dealer this morning. They ordered the new battery and it should be ready too swap out next week.

47,588
43.31 AHr
66% SOH
44.94 Hx
LeafPowerIsIxE wrote:I am doing a traction battery swap in the coming weeks (Dealer just ordered the battery).
Any advice on anything I should do before dropping the vehicle and then after picking it up?
Congratulations to both!

Our 2011 LEAF lost its third capacity bar on Friday, August 25, 2017. Wife was driving, so I do not have a picture from LeafSpy, but I estimate the following numbers:

46,100 miles
47.47 Ah
72% SOH
51.60% Hx

Our LEAF was manufactured in June 2011. It was put into service as a demo vehicle on September 29, 2011. We purchased it on March 26, 2012 with 2011 miles on the odometer. So it took nearly 5.5 years and 44,000 miles since we purchased it to lose the third capacity bar.

Let's see if the rate of capacity loss is increasing or decreasing:

1st Bar: 4/6/2015 - 24,496 miles - 54.01 Ah
2nd Bar: 6/11/2016 - 33,691 miles - 51.24 Ah
3rd Bar: 8/25/2017 - 46,100 miles - 47.47 Ah

1st-2nd Bar: 431 days/bar - 9,195 miles/bar - 2.77 Ah/bar = 155 days/Ah = 3319 miles/Ah
2nd-3rd Bar: 440 days/bar - 12,409 miles/bar - 3.77 Ah/bar = 116 days/Ah = 3291 miles/Ah

It's interesting that the Ah difference between the second and third bars was 36% greater than the Ah difference between the first and second. Since the car was driven more during the past 14 months than the previous 14 months, the capacity was lost at a faster daily rate. This may also be due to the second period including one-and-a-half summers while the first period included only one summer. OTOH, notice that the miles/Ah is virtually the same for both periods.

As usual, making sense of LEAF data proves to be a challenge! Unfortunately, our LEAF will see even MORE miles over the next 14 months, so those results will again not be exactly comparable.
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

sandeen
Posts: 120
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685
Location: Minnesota

Re: Capacity Loss on 2011-2012 LEAFs

Tue Sep 05, 2017 7:10 am

I've been rather obsessively gathering reports of 2, 3, 4, and 5 bar losers an collecting them in this spreadsheet. Here's a histogram (0.5 Ahr buckets) of when bars were lost on 2011/2012 LEAFs based on these reports. (If you look at the spreadsheet and find that you have data that's not listed, I'll add you if you'd like to PM me with (preferably) a link to the forum post where you reported the data.)

I find it interesting that there's a larger spread on the 4 bar drops, but then there are also a lot more reports, I suppose because LeafSpy was more prevalent in later years, and because people may be more motivated to report that magical 4th bar. :)

Image

Here's a graph of the average reported Ahr at each bar loss, and a best fit line:
Image

These are "live" links to the spreadsheet so the images will update as I add data. I suppose this is all generally known data, but I found it interesting to see it graphically.
2012 SL from TX, (mfg 8/12), used, dropped to 8 bars at 43.50 Ahr, 40,601 miles. my daily stats =/= my collected data on 4-bar losers

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Marktm
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Posts: 359
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737

Re: Capacity Loss on 2011-2012 LEAFs

Sun Sep 10, 2017 3:32 pm

sandeen;

4th bar drop on my 2012 was at 42.6 ahrs.
2012 Leaf SL; 36,000 miles. Battery replaced November 1st, 2016.
Rural cabin with 6750 watts Grid tied PV. Off-grid solar Leaf charging capable (level II).

sandeen
Posts: 120
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685
Location: Minnesota

Re: Capacity Loss on 2011-2012 LEAFs

Sun Sep 10, 2017 4:11 pm

Marktm wrote:4th bar drop on my 2012 was at 42.6 ahrs.


Thanks, fixed - I was going off this post, I guess it changed a bit post-drop :)
2012 SL from TX, (mfg 8/12), used, dropped to 8 bars at 43.50 Ahr, 40,601 miles. my daily stats =/= my collected data on 4-bar losers

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Marktm
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Posts: 359
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737

Re: Capacity Loss on 2011-2012 LEAFs

Thu Sep 14, 2017 6:46 am

My bad - I found that my last screen shot was Oct 26th, 2016. The post was from an Oct 9th screen shot - don't recall how I missed that. Thanks for correcting.
Mark
2012 Leaf SL; 36,000 miles. Battery replaced November 1st, 2016.
Rural cabin with 6750 watts Grid tied PV. Off-grid solar Leaf charging capable (level II).

jkenny23
Posts: 13
Joined: Sat Aug 19, 2017 12:49 pm
Delivery Date: 19 Sep 2017
Leaf Number: 009318

Re: Capacity Loss on 2011-2012 LEAFs

Sun Sep 17, 2017 2:23 pm

I've been keeping an eye on the used market, trying to buy a 2011 Leaf with 8+ bars and add a range extender pack if it degrades past my daily driving needs, and just found this one today: https://sfbay.craigslist.org/eby/cto/6309082620.html only $2400 which is a steal but holy cow only 5 bars left at 101k miles. Is that a record? Seems it has quick charging and it must have been heavily used to get to that level...

cwerdna
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Posts: 7252
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Capacity Loss on 2011-2012 LEAFs

Sun Sep 17, 2017 3:58 pm

jkenny23 wrote:I've been keeping an eye on the used market, trying to buy a 2011 Leaf with 8+ bars and add a range extender pack if it degrades past my daily driving needs, and just found this one today: https://sfbay.craigslist.org/eby/cto/6309082620.html only $2400 which is a steal but holy cow only 5 bars left at 101k miles. Is that a record? Seems it has quick charging and it must have been heavily used to get to that level...

I think I'd also heard of another '11 Leaf down 7 capacity bars. The guy might've been in TX. I wish I could find the link.

As for the bolded part, what legitimate outfit provides such a pack? Can you point to their handiwork, details about it and experiences from the owner of the vehicle?

'13 blue Leaf SV w/premium package (owned)
'13 blue Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

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Marktm
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Posts: 359
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737

Re: Capacity Loss on 2011-2012 LEAFs

Sun Sep 17, 2017 4:02 pm

jkenny23 wrote:I've been keeping an eye on the used market, trying to buy a 2011 Leaf with 8+ bars and add a range extender pack if it degrades past my daily driving needs, and just found this one today: https://sfbay.craigslist.org/eby/cto/6309082620.html only $2400 which is a steal but holy cow only 5 bars left at 101k miles. Is that a record? Seems it has quick charging and it must have been heavily used to get to that level...


Get with COR on this forum to see about a battery switch - or possibly work with Nissan for partial pay on a new battery - or part out. Seems like a really good price if a reasonable price on a battery replacement. Most salvaged Leafs cost more.
2012 Leaf SL; 36,000 miles. Battery replaced November 1st, 2016.
Rural cabin with 6750 watts Grid tied PV. Off-grid solar Leaf charging capable (level II).

Amped
Posts: 42
Joined: Wed Nov 30, 2016 5:46 pm
Delivery Date: 15 Nov 2012
Leaf Number: 018515
Location: MA

Re: Capacity Loss on 2011-2012 LEAFs

Wed Sep 20, 2017 4:10 pm

Lost bar #4 today. 2012 SL. Warranty up on 11/15.

43.21Ahr
49256 miles
65% SOH
59.18 Hx.

I called No Gas EV and was instructed to contact the dealer in the am. They didn't start a case or take any info though. I'm due for a battery check. Last one was September last year, They'll likely make me pay for one. Dealer charges $120 for it.
2012 SL. Clippercreek CS40-SG2. Battery replaced 10/10/17

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