Reddy
Posts: 1544
Joined: Fri Feb 11, 2011 3:09 pm
Delivery Date: 18 Aug 2011
Leaf Number: 006828
Location: Pasco, WA

Re: Capacity Loss on 2011-2012 LEAFs

Wed Aug 22, 2018 12:54 pm

Reddy wrote:
RegGuheert wrote:
RegGuheert wrote:So now I'm not so sure. As I reported previously, our LEAF has been showing increasing Ah readings recently. Since crossing 50,000 miles on December 7, 2017, at 47.21 Ah, the reported capacity has increased to 48.24 Ah on Februrary 11, 2018, with about 52,000 miles on the odometer.

So, has capacity loss accelerated from 2.2 Ah/10,000 miles (30,000 mi. to 40,000 mi.) to 2.6 Ah/10,000 miles (40,000 mi. to 50,000 mi.) or has it slowed to 1.6 Ah/12,000 miles (40,000 mi. to 52,000 mi.) or both?
Two weeks later, the Ah reading has dropped 1.0 Ah down to 47.28 Ah. It was 80F one day last week, so I guess it decided to head back down.
Reg, I measured my battery yesterday, first time since 11/1/17, and my reading went up slightly from 45.80 (41,700 mi) to 45.91 AHr (44,700 mi). I have increased my driving slightly (750 mi/mo vs. my previous 500 mi/mo normal), so maybe the battery likes being used more. I fully expect to see degradation increase again next month. I recorded about 2 AHr loss last year, and I’m expecting something similar this year. Hopefully it won’t be worse, though the summer could be brutal with more 115 F temps. I think I’m still on target to lose the 4th bar in 2019, so at about 8 years and right around 55,000 mi.
Here's my seven year anniversary report after charging to 100%:
2011 SL received 8/18/11. I'm the original owner. Paid MSRP (no other choice at the time).
9 bars, 47,754 mi, 75 miles on the GOM at full charge.
AHr 44.22, SOH 67%, Hx 46.43%, 85*F temp, 4.092 V, 96.4% SOC
Extrapolating LeafSpy data collected over the past four years, I'm anticipating 8-bars on May 1st, 2019 (7.75 years).
http://mynissanleaf.com/viewtopic.php?f=27&t=25454&p=534925#p534925
Reddy
2011 SL; 9 bar, 45.80 AHr; 45,000 mi; rcv'd Aug 18, 2011
Long: http://www.mynissanleaf.com/viewtopic.p ... al#p226115"
Cold: http://www.mynissanleaf.com/viewtopic.p ... 60#p243033"

cwerdna
Posts: 8938
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

Thu Oct 04, 2018 1:30 am

https://www.facebook.com/groups/seattle ... %22R%22%7D has a pic of some in the Seattle Leaf group with only 5 bars.

I don't know his story, but I think I have met him before when I lived in the PNW, so I assume the car's always resided in the PNW. Maybe DaveInOlyWA knows?

'19 Bolt Premier
'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

RelaxedGal
Posts: 7
Joined: Wed Apr 01, 2015 10:07 am
Delivery Date: 24 Nov 2018

Re: Capacity Loss on 2011-2012 LEAFs

Sun Nov 18, 2018 8:42 pm

RelaxedGal wrote:I feel like I'm closing in on that 4th bar. I have a feeling it will be December of this year.


Good guess! I lost my 9th bar this morning, November 18 2018. Happy 7th birthday baby! :lol:

My car has just over 72,000 miles.
2012 Nissan Leaf SL
Purchased Feb 2015, 36,033 miles
First Bar lost: 39,879 miles, July 2015. Second: 50,225 & 8/16. Third: 62,960, 11/17. Fourth: 72,056, 11/18. Traded in the following weekend.

2019 Nissan Leaf SV
Purchased Nov 2018, 7 miles.

badq45t
Posts: 18
Joined: Fri Apr 12, 2013 3:49 pm
Delivery Date: 12 Apr 2011

Re: Capacity Loss on 2011-2012 LEAFs

Wed Jan 16, 2019 2:04 pm

Wow this is maybe the longest string I have ever seen on a board. So I only found My Nissan leaf board recently, but we bought our Ocean Blue 2011 in December and loved the car. It is my wife's daily driver and for the first 5 years she owned it she had a power source at work so always easy to keep it juiced up. We live in Half Moon Bay, CA where the coldest winter I ever spent was the summer in Half Moon Bay (stolen from Mark Twain's line about SF). We lost our first bar after year 2 and then lost a few more. I took the car into the dealership as part of the front end maintenance package and informed them that our range was really bad. I heard a few things about the AZ Batteries but didn't realize that the issue was a design flaw.

So here I am today, not a Leaf fan anymore, still love the way the car drives and the reliablity has been impressive at 65k not real issues to resolve other than my battery has about 35 miles or range and my wife is hypermiling to work everday where she no longer has a charger.

Help is coming in the way of aftermarket batteries

https://fenix.systems/leafbattery

check these guys out, they plan to build a liquid cooled battery system that can be "rented" or owned and range from the meager 24 all the way to 65 khw batteries that will give the old 2011 a 200+ mile range for about the same price that Nissan is asking for the 105 mile replacement. Since I cannot wait he's taking my car as a donor for 1+ year to get it working, I am actually going to lease another Leaf in the meantime for the wife. I hate to say it but i wouldn't EVER EVER buy an electric car that doesn't feature a liquid cooling system, which every other 100% EV has except the Leaf.

I am happy to have found this board and thread. Check this guys website out, when he brings this to market it will be a game changer and can save 1000's of Leaf owners from having to tow their completely useless cars to the wrecking yard.

cwerdna
Posts: 8938
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

Thu Feb 21, 2019 11:22 pm

https://www.facebook.com/groups/NissanL ... 9280055381 currently has a guy trying to sell a '12 Leaf SL in Mississippi with only 5 capacity bars remaining (7 bar loser) at just past 60K miles. He's asking for $5K which is way too high considering it only has 5 bars and has a bunch of scrapes all over the place and messed up spoiler paint, it seems.

'19 Bolt Premier
'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

User avatar
Marktm
Gold Member
Posts: 446
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737
Location: Houston, TX

Re: Capacity Loss on 2011-2012 LEAFs

Fri Feb 22, 2019 8:07 am

badq45t wrote:
Help is coming in the way of aftermarket batteries

https://fenix.systems/leafbattery


I am happy to have found this board and thread. Check this guys website out, when he brings this to market it will be a game changer and can save 1000's of Leaf owners from having to tow their completely useless cars to the wrecking yard.


Good information on fenix;

http://www.mynissanleaf.com/viewtopic.php?f=27&t=26597
2012 Leaf SL; 43,000 miles. Battery replaced November 1st, 2016.

WetEV
Posts: 2621
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Capacity Loss on 2011-2012 LEAFs

Fri Feb 22, 2019 2:57 pm

Marktm wrote:Good information on fenix;


I'm not sure what Fenix is.

Building a battery isn't simple. BMS is complex, easy to get wrong. Water needs to be excluded from the batteries. Lots of current and voltages.

I've seen nothing to make me believe that Fenix has the engineering resources to make a safe, reliable battery pack.

Sure, I'd love to see third party supply of battery packs. But only if they are at least as good as the OEM packs.
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

User avatar
Marktm
Gold Member
Posts: 446
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737
Location: Houston, TX

Re: Capacity Loss on 2011-2012 LEAFs

Fri Feb 22, 2019 5:30 pm

Agreed - my hope is that they produce a higher quality, more heat resistant battery pack that also supports bidirectional energy through the CHAdeMO port in an accessible manner. Quite a tall order. My replacement Lizard battery pack is degrading at a 8% (plus) rate of ahrs per year. I've decided the $150 is worth the risk of their success.

Bysinger appears to be very dedicated to making this happen - but time will tell.
2012 Leaf SL; 43,000 miles. Battery replaced November 1st, 2016.

User avatar
Marktm
Gold Member
Posts: 446
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737
Location: Houston, TX

Re: Capacity Loss on 2011-2012 LEAFs

Wed Mar 13, 2019 5:48 pm

Update on my 2012 Leaf with a "Lizard" replacement battery in Nov. 2016. Lost the first bar today at about 53.3 amp-hours. About 9% AH battery loss per year. No quick charges, garage kept, battery temps in mid 80s to low 90s most of the summer.

The chart:
Battery log 3.13.19.jpg
You do not have the required permissions to view the files attached to this post.
2012 Leaf SL; 43,000 miles. Battery replaced November 1st, 2016.

LeftieBiker
Moderator
Posts: 10990
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Capacity Loss on 2011-2012 LEAFs

Wed Mar 13, 2019 7:01 pm

Is your garage un-cooled, partially cooled, or air conditioned? If un-cooled and you get breezes, you may want to park it outside, at least at night.
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.

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