lorenfb
Posts: 2285
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: 2013 Low Battery Capacity AHr Battery Degradation

Sat Jul 19, 2014 6:43 pm

lorenfb wrote:
TimLee wrote:
lorenfb wrote: Production #s
Dave - 423014 - MY 2013
Brock - 423875 - MY 2013
Mine - 416635 - MY 2013

Note: The last 5 digits of the above represents the actual production number of the model year (MY).
Where did you determine this?
It may be correct, but it may not necessarily mean that the vehicles were produced in this chronological sequence on the production line.
It was clearly shown that 2011 and 2012 Japan produced VINS were assigned earlier and sometimes were several weeks different than actual chronological production sequence.
Not sure if this is the case at Smryna.
First, that's how all OEM vehicle manufacturers assign VINs in sequential order based
on an entry date into manufacturing. Additionally, one can check the production date
on the vehicle, which some post in this forum, and that correlates with the last digits
of the VIN (posted by some) when compared to another Leaf's data.

As an example, my Leaf was built in September of 2013 and delivered in late November.
So at some point in September, Nissan started production on its 16,635 Leaf. When Dave
bought his Leaf in December, 23,875 Leafs had been produced. Brock's leaf was produced
in 2013 toward the end of the 2013 production, but sold in 2014.

Bottom line: The last digits of the VIN give a relative relationship within a few weeks
at most of when a vehicle was produced.
Last edited by lorenfb on Sat Jul 19, 2014 10:38 pm, edited 2 times in total.
#1 Leaf SL MY 9/13: 74K miles, 48 Ahrs, 5.2 miles/kWh (average), Hx=70, SOH=78, L2 - 100% > 1000, temp < 95F, (DOD) > 20 Ahrs
#2 Leaf SL MY 12/18: 4.5K miles, 115 Ahrs, 5.5 miles/kWh (average), Hx=98, SOH=99, DOD > 20%, temp < 105F

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Boomer23
Posts: 3550
Joined: Sun May 23, 2010 9:57 pm
Delivery Date: 30 Mar 2011
Location: Orange County, CA

Re: 2013 Low Battery Capacity AHr Battery Degradation

Sat Jul 19, 2014 8:18 pm

Sorry, inadvertent post.
2018 Tesla Model 3 Long Range RWD
2017 Chevy Bolt EV Premier Kinetic Blue
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DaveinOlyWA
Posts: 14226
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: 2013 Low Battery Capacity AHr Battery Degradation

Wed Jul 23, 2014 2:54 pm

RegGuheert wrote:
BrockWI wrote:Exactly what I was thinking, at least I know our numbers are not WAY off, it just looks like some folks got some super batteries or something?
Actually, the point of this thread is that MOST LEAFs ship with 66+Ah indicated. But starting in 2013, some are indicating ~60Ah, even when new. Fortunately, range tests indicate that these LEAFs have about the same range as all the others, but more of the range is available below the VLBW.

actually the max seems to be 67.36 ahr and 22.7 kwh available. Hx is the one that varies quite a bit.

highest mine has been has been 107.10 % but have seen a few with 109+

here is LEAF after 4th of July weekend. SO worked so I did not go anywhere. So 4 days, drove about 100 miles. LEAF does not like sitting. Add to that, 3 local jobs in Oly so short working days as well. This is the result.
63.71 ahr small.jpg

Fast forward; Now its a "normal" week (as normal as it can be...) and notice no QC's but only difference is working out of town and driving a minimum of 75 miles including 4 of 6 days that were over 93 miles. So deep cycling but just normal 4.8 KW home charging (EVSE upgrade running 20 amps) and now we have this.

66.59 ahr small.jpg
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2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 412 mi, 99.72% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

DougWantsALeaf
Posts: 1064
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: 2013 Low Battery Capacity AHr Battery Degradation

Thu Jul 24, 2014 3:48 pm

Amazing. At 5 miles per kw, can you get 110 miles?
2019 SV Plus Silver
2013 Leaf SV
100 Mile Club Member (Number 87)
Max distance on 13 Leaf: 120 miles
Max distance on 19 Leaf: 242 Highway 4.5 miles/kWh (4.9 KWh remaining)

DaveinOlyWA
Posts: 14226
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: 2013 Low Battery Capacity AHr Battery Degradation

Thu Jul 24, 2014 6:16 pm

DougWantsALeaf wrote:Amazing. At 5 miles per kw, can you get 110 miles?
no. for whatever reason, I lose a few on the way to turtle. I did do 108 miles and still had like 10 on the GOM but that was all super slow in town driving. would have gone farther but was burnt out by then
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 412 mi, 99.72% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Computerizer
Posts: 190
Joined: Fri Dec 21, 2012 2:13 pm
Delivery Date: 19 Dec 2012
Location: Bellingham, WA, US

Re: 2013 Low Battery Capacity AHr Battery Degradation

Sat Sep 13, 2014 9:21 am

I just did a long trip (1,500 miles in total over 2 weeks) in my 2013 and observed the impact on my AHr / Hx / SOH / etc via Leaf Spy Pro.

I started out with AHr=62.13, SOH=95%, Hx=95.69%.

After two days with 4 or 5 short quick charges each, and about 400 miles of driving, I was at AHr=65.54, SOH=100%, Hx=100.26%.

Then I drove one or two quick charges per day for several days, and noticed the numbers going back down a bit.

Finally, a couple days ago I performed 7 quick charge sessions in less than 12 hours (and drove 275 miles in between). Then the next morning I did another 100 miles or so with 2 short quick charges. I ended up with AHr=64.93, SOH=99%, Hx=100.25%

Now that we're back home, I'm going to be driving my normal 25-30 miles per day and expect to see it fall quickly back to the 92-95% ranges.
Tyrel Haveman
Current: 2013 LEAF SL (Brilliant Silver), 2017 Bolt LT (Red)
Previous: 2016 Kia Soul EV+ (Titanium Grey); 2013 LEAF SV (Blue Ocean), 2012 LEAF SL (Glacier Pearl)
100% Solar PV (12.125 kW ground-mount)
Bellingham, WA

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RegGuheert
Posts: 6419
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Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: 2013 Low Battery Capacity AHr Battery Degradation

Sun Sep 14, 2014 3:19 am

Computerizer wrote:I started out with AHr=62.13, SOH=95%, Hx=95.69%.

After two days with 4 or 5 short quick charges each, and about 400 miles of driving, I was at AHr=65.54, SOH=100%, Hx=100.26%.
Both you and DaveinOlyWa have reported a boost in reported Ah following QCs in MY2013 LEAFs. In your case, 3.4Ah, which is a significant amount. I wonder what is behind this phenomenon.
RegGuheert
2011 Leaf SL Demo vehicle
10K mi. on 041413; 20K mi. (55.7Ah) on 080714; 30K mi. (52.0Ah) on 123015; 40K mi. (49.8Ah) on 020817; 50K mi. (47.2Ah) on 120717; 60K mi. (43.66Ah) on 091918.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

DaveinOlyWA
Posts: 14226
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: 2013 Low Battery Capacity AHr Battery Degradation

Sun Sep 14, 2014 6:38 am

RegGuheert wrote:
Computerizer wrote:I started out with AHr=62.13, SOH=95%, Hx=95.69%.

After two days with 4 or 5 short quick charges each, and about 400 miles of driving, I was at AHr=65.54, SOH=100%, Hx=100.26%.
Both you and DaveinOlyWa have reported a boost in reported Ah following QCs in MY2013 LEAFs. In your case, 3.4Ah, which is a significant amount. I wonder what is behind this phenomenon.
I also wonder and at issue is the accuracy of Nissan instrumentation. the fact that these numbers were not designed for public consumption and the remote possibility that

**fantasy thought warning**

the BMS is temporarily adjusting the available power to accommodate predicted long range needs.

**end of fantasy**

I did a similar experiment except in reverse. I spent two weeks driving like normal people. Averaging 30 miles a day with only an occasional day in the 60 mile range but also two 24 stints of parking a few days under 20 miles. The number dropped as expected
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 412 mi, 99.72% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

stjohnh
Posts: 363
Joined: Tue Jun 18, 2013 4:27 pm
Delivery Date: 10 Jun 2013
Leaf Number: 409675
Location: Palo Alto, CA

Re: 2013 Low Battery Capacity AHr Battery Degradation

Sun Sep 14, 2014 8:30 am

RegGuheert wrote:
Computerizer wrote:I started out with AHr=62.13, SOH=95%, Hx=95.69%.

After two days with 4 or 5 short quick charges each, and about 400 miles of driving, I was at AHr=65.54, SOH=100%, Hx=100.26%.
Both you and DaveinOlyWa have reported a boost in reported Ah following QCs in MY2013 LEAFs. In your case, 3.4Ah, which is a significant amount. I wonder what is behind this phenomenon.

My wife's early MY2013 jumped from 62.02 to 64.25 AHr after a QC in June this year. Over the next few days fell down to its usual 60-62 range. However, multiple QCs on other occasions have not resulted in any bump in AHr capacity. I don't have QC in my 2013 S, so don't have post QC data for that car, however, in May this year, my S did have an unexpected jump in AHr capacity, also from 60.87 to 64.33. Completely unexpected and capacity also dropped to the usual 60.5-62 range afterwards. Maybe some freak bug in a version of LeafSpy, since the bumps were about 1 month apart?
Blessings,
Holland

2 LEAFS, bought 1 week apart. 2013 S for me, 2013 SV is wife's. Both manufactured May 2013. I lost first bar at 36,000. Wife still has all bars at 50,000.

Computerizer
Posts: 190
Joined: Fri Dec 21, 2012 2:13 pm
Delivery Date: 19 Dec 2012
Location: Bellingham, WA, US

Re: 2013 Low Battery Capacity AHr Battery Degradation

Mon Sep 15, 2014 11:32 am

stjohnh wrote:
RegGuheert wrote:
Computerizer wrote:I started out with AHr=62.13, SOH=95%, Hx=95.69%.

After two days with 4 or 5 short quick charges each, and about 400 miles of driving, I was at AHr=65.54, SOH=100%, Hx=100.26%.
Both you and DaveinOlyWa have reported a boost in reported Ah following QCs in MY2013 LEAFs. In your case, 3.4Ah, which is a significant amount. I wonder what is behind this phenomenon.

My wife's early MY2013 jumped from 62.02 to 64.25 AHr after a QC in June this year. Over the next few days fell down to its usual 60-62 range. However, multiple QCs on other occasions have not resulted in any bump in AHr capacity. I don't have QC in my 2013 S, so don't have post QC data for that car, however, in May this year, my S did have an unexpected jump in AHr capacity, also from 60.87 to 64.33. Completely unexpected and capacity also dropped to the usual 60.5-62 range afterwards. Maybe some freak bug in a version of LeafSpy, since the bumps were about 1 month apart?
My wife's MY13 also exhibits the same behavior as mine. At one point I graphed the AHr/SOH/Hx over time while we went on a moderately long trip (200 miles or so). All of these values increased while the vehicle was being driven at speed down the highway, and never increased while the vehicle was being charged, either on DCQC or Level 2. I don't think it has anything to do with DCQC, I think it has to do with how far you drive between charges, or perhaps how far down you run the battery.
Tyrel Haveman
Current: 2013 LEAF SL (Brilliant Silver), 2017 Bolt LT (Red)
Previous: 2016 Kia Soul EV+ (Titanium Grey); 2013 LEAF SV (Blue Ocean), 2012 LEAF SL (Glacier Pearl)
100% Solar PV (12.125 kW ground-mount)
Bellingham, WA

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