fattmerris
Posts: 2
Joined: Tue Aug 07, 2012 2:32 pm
Delivery Date: 25 Jun 2011
Leaf Number: 004013

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:37 pm

I live in Plano TX and just lost my second bar yesterday after 13.5 months of ownership and 16,500 miles. I lost the first bar at about 12 months and 15,000 miles. Reported to Nissan with Case# 913-3854

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OrientExpress
Posts: 1579
Joined: Sun Aug 08, 2010 12:22 pm
Delivery Date: 10 May 2011
Leaf Number: 2331
Location: San Jose, Ca

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:39 pm

TickTock wrote:
OrientExpress wrote:What if this whole thing is just a SW bug that is not accurately reporting the capacity of the battery?
Would be nice, but not a chance. We have confirmed the loss through many means: power from the wall, driving range, gids, bars, carwings, etc. All have consistent results.
Assuming what ever is responding to your queries in the car is accurately reporting back and does not have a bug.
2018 LEAF SL
Gun Metalic
Delivery April 10 2018

Prior LEAF:
2014 LEAF SV
Ocean Blue
Delivery May 23 2014
50,000+ miles - all 12 bars - Same range as new - No warranty issues ever!

jspearman
Posts: 244
Joined: Sun Aug 21, 2011 4:04 pm
Delivery Date: 20 Aug 2011
Leaf Number: 5954
Location: Phoenix, AZ

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:40 pm

TonyWilliams wrote:While everybody is pontificating about temperature adjustments to available capacity, please address why I had 15-18% loss of RANGE / AUTONOMY in 75F temperatures? And a similar numbers of performance reduction from other LEAFs in other "hospitable" climates?

Is the rational that it would just get worse with temperature, and then magically improve as the temperature returns to hospitable? If so, then we can just take one of the many affected Arizona LEAFs, and air condition it overnight, and then wake up early with a full, cooler 100% charge in 75F early morning in Phoenix, and voila, range and capacity bars restored.

Good luck, but we don't have to guess. Another variable that is very easy to test for.
I agree with Tony. I didn't have this kind of range loss in August of last year, when it was equally hot, so why now? Why weren't we seeing these temp adjustments last summer? Something is rotten in the state of Arizona, and it's not just Jan Brewer.

edatoakrun
Posts: 5222
Joined: Thu Nov 11, 2010 9:33 am
Delivery Date: 15 May 2011
Leaf Number: 2184
Location: Shasta County, North California

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:43 pm

TomT
Well, add me to the list. I lost a capacity tick this morning... 22,000 miles, 2 QCs, normally charge to 80 percent, 17 months since delivery.
Sorry about that. Your report is the second of a CA Leaf with a bar loss, I believe.

What sort of ambient temps does your LEAF experience?

What is the month of manufacture?
TonyWilliams"]While everybody is pontificating about temperature adjustments to available capacity, please address why I had 15-18% loss of RANGE / AUTONOMY in 75F temperatures?...


How many times did you run your LEAF past VLBW?

To "turtle"?

Until shut-down?
="TonyWilliams"....And a similar numbers of performance reduction from other LEAFs in other "hospitable" climates...?
I don't doubt some other "moderate climate LEAFs were as "close to" losing a bar as yours was, before you sold it, but I doubt that you actually are claiming your LEAF was typical, for all LEAFs with similar temperature histories, charge cycles, and time from manufacture.
Last edited by edatoakrun on Tue Aug 07, 2012 2:47 pm, edited 2 times in total.
no condition is permanent

EdmondLeaf
Posts: 1500
Joined: Tue Jan 18, 2011 2:18 pm
Location: Edmond, OK

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:45 pm

fattmerris wrote:I live in Plano TX and just lost my second bar yesterday after 13.5 months of ownership and 16,500 miles. I lost the first bar at about 12 months and 15,000 miles. Reported to Nissan with Case# 913-3854
Sorry to hear that, can you share how car was garaged day and night, please.

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DaveEV
Posts: 6246
Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:50 pm

EdmondLeaf wrote:
TomT wrote:Well, add me to the list. I lost a capacity tick this morning... 22,000 miles, 2 QCs, normally charge to 80 percent, 17 months since delivery.
Sorry to hear that from people that are considered as not extremely hot
It's been well over 100F in most of The Valley starting yesterday - I have to think that the heat helps to triggers a reduction in GID counts from what we've seen. Unfortunately for TomT - it's forecasted to be like this through the week. Not as hot as the temps you've seen in OK recently, though!

mksE55
Posts: 176
Joined: Fri Oct 21, 2011 8:10 pm
Delivery Date: 22 Oct 2011
Leaf Number: 5086
Location: Tyler TX

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:51 pm

PC to Nissan to report the battery loss , seemed pleasant enough, an they are aware of the issue in warmer climates. No news at this time and I have an official case # 9129683. I Will wait and see. Hard to think I would lose it this fast with the short driving and really have only had mine for just 3-4 months of summer use. I bought it in the winter 10/11. mfr date 5/11, put about 8000 miles myself with 2800 coming from dealer. no QC ever , and did the 100% charge in the winter when it was cooler, 80% in summer, 11,000 total miles I would say is early for loss. I see some after 15,000 that is what I was shooting for.
Bye Bye Exxon , Shell, Mobil
* 2011 SL
3 bar loss 23,000 mi
in less than 2 yrs
4/14 now 4 bar loss 32,000 just over 2 years

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TickTock
Posts: 1701
Joined: Sat Jun 04, 2011 10:30 pm
Delivery Date: 31 May 2011
Leaf Number: 3626
Location: Queen Creek, Arizona
Contact: Website

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:55 pm

OrientExpress wrote:
TickTock wrote:
OrientExpress wrote:What if this whole thing is just a SW bug that is not accurately reporting the capacity of the battery?
Would be nice, but not a chance. We have confirmed the loss through many means: power from the wall, driving range, gids, bars, carwings, etc. All have consistent results.
Assuming what ever is responding to your queries in the car is accurately reporting back and does not have a bug.
The car s/w has nothing to do with the accuracy of my wall power meter nor the number of miles I drive. This was the point I was trying to make - we aren't just basing this on one source of information - it has been confirmed through several different means. Some of which have no dependence on the car s/w or interpretation of OBD messages.
Last edited by TickTock on Tue Aug 07, 2012 3:17 pm, edited 1 time in total.

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TomT
Posts: 10650
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Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: California, now Georgia
Contact: Website

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 3:15 pm

Well, add me to the list. I lost a capacity tick this morning... 22,000 miles, 2 QCs, normally charge to 80 percent, 17 months since delivery. My Gid meter was stolen so I can't report those numbers...

Sorry about that. Your report is the second of a CA Leaf with a bar loss, I believe.

What sort of ambient temps does your LEAF experience? Fairly temperate, really. I've never seen a 7th temperature bar. Three days of the week I work on the Westside which is not particularly hot and I park outdoors. It is garaged when at home in the NW San Fernando Valley.
.
What is the month of manufacture? It was January 2011 as I recall. It only spent two days at the dealer before pickup.

How many times did you run your LEAF past VLBW? Twice

To "turtle"? Once

Until shut-down? Once
Last edited by TomT on Tue Aug 07, 2012 9:39 pm, edited 1 time in total.
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
2019 Tesla Model 3; LR, RWD, FSD, 19" Sport Wheels, silver/black; built 3/17/19, delivered 3/29/19.

smkettner
Posts: 7501
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 3:31 pm

TonyWilliams wrote:While everybody is pontificating about temperature adjustments to available capacity, please address why I had 15-18% loss of RANGE / AUTONOMY in 75F temperatures? And a similar numbers of performance reduction from other LEAFs in other "hospitable" climates?

Is the rational that it would just get worse with temperature, and then magically improve as the temperature returns to hospitable? If so, then we can just take one of the many affected Arizona LEAFs, and air condition it overnight, and then wake up early with a full, cooler 100% charge in 75F early morning in Phoenix, and voila, range and capacity bars restored.

Good luck, but we don't have to guess. Another variable that is very easy to test for.
I will be curious how your replacement LEAF does on battery capacity. If it degrades the same as the first I would be looking at operating routine. If it lasts much longer I am going to speculate if it is just random luck on how the battery actually performs. Trouble with so much speculation is no control group to make a scientific conclusion.

So far I believe there is a spectrum on how well each battery will perform even in identical conditions.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
RAV4 traded in for I-Pace Dec 2018

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