cfl
Posts: 10
Joined: Fri Mar 18, 2011 9:06 am

Battery melt down?

Yesterday, while waiting at a red light, all warning lights came on (low battery, turtle mode, red and orange !), I couldn't drive anymore, nor turn the leaf on or off (emergency shutdown, as in pushing the power switch for 2 sec or three times had no effect). After about 15 sec it finally turned off, and after turning it on a few times it worked again like normal (4 battery bars, all green). Same problem again a bit later, except that it recovered faster. According to the dealer the voltage on the battery suddenly dropped very low (he claimed it might be because of the temperature outside (100 Farenheit) and because the battery was too low (at 4 bars....). Still waiting for a call back from Nissan Japan. It also looks like the car now only charges to 11 bars according to the emails I get from Car wings, so my guess is that at least one battery module has problems (the high temperature and low charge of the battery does not make sense to me). The car has about 4500 miles, this is the first time there is anything wrong.

Anyone else had a similar problem?

Thanks, Claudio
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TonyWilliams
Posts: 10107
Joined: Sat Feb 19, 2011 1:48 am
Delivery Date: 02 May 2011
Leaf Number: 002244
Location: Vista, California USA
Contact: Website YouTube

Re: Battery melt down?

cfl wrote:I couldn't drive anymore, nor turn the leaf on or off (emergency shutdown, as in pushing the power switch for 2 sec or three times had no effect). .... the temperature outside (100 Farenheit) and because the battery was too low (at 4 bars....)
Not good. Please keep us updated what they find with the battery. What part of the world are you in, Phoenix or Texas? Have you been charging to 100% in that heat?

The battery at 4 bars is a red herring. The temperature of a battery pack that doesn't have any cooling... maybe GM will eventually have the last laugh here.
Thanks,

Tony Williams
QC CHARGE
1497 POINSETTIA AVE
Suite 154
VISTA, CA 92081-8542 USA
Office M-F, 9-5pm Pacific Time
1-760-798-0342
1-844-EV-PARTS
1-844-387-2787
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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: Battery melt down?

cfl wrote: (he claimed it might be because of the temperature outside (100 Farenheit) and because the battery was too low (at 4 bars....).
100F is a cool day here in PHX. I typically get home with 1 or 2 bars left and have driven many days above 115F. Never encountered anything like what you described.
amtoro
Posts: 436
Joined: Fri Jul 22, 2011 12:55 pm
Delivery Date: 05 Dec 2011
Leaf Number: 5972
Location: Atlanta, GA

Re: Battery melt down?

Sorry to hear that.
Your assumption could be right; if a module suddenly failed, the system may have decided to go into emergency mode. I hope you get it fixed soon.

Certainly, when the Smyrna, TN plant is operational, the battery modules diagnostics and replacement could happen a lot faster. That can only be good.
---
2012 Nissan LEAF SL - Brilliant Silver
Delivery: Dec-5/11
Mods: Horn, XPEL paint protection film, AEGIS window film and VSP-off switch
cfl
Posts: 10
Joined: Fri Mar 18, 2011 9:06 am

Re: Battery melt down?

this is San Jose, CA (we had a three day heat wave where we got temperatures in the high 90, almost unbearable :).
Battery temperature was 6 bars (its always either 5 or 6, I have never seen it higher or lower), and some guy at the dealer ship claimed that the battery was cooled.... (fortunately this was not the local Leaf expert).
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TonyWilliams
Posts: 10107
Joined: Sat Feb 19, 2011 1:48 am
Delivery Date: 02 May 2011
Leaf Number: 002244
Location: Vista, California USA
Contact: Website YouTube

Re: Battery melt down?

cfl wrote:this is San Jose, CA (we had a three day heat wave where we got temperatures in the high 90, almost unbearable :).
Battery temperature was 6 bars (its always either 5 or 6, I have never seen it higher or lower), and some guy at the dealer ship claimed that the battery was cooled.... (fortunately this was not the local Leaf expert).
The switch point for 5 to 6 bars is about 25C/75 degrees F, if I recall correctly.

From Service Manual, April 2011, page EVB-140:

Code: Select all

Battery temperature    Terminals   C (F)   Resistance (Ohms)
sensor

Rear RH & Front RH      1 and 2   -20  (-4)   Approx. 27.5
Rear center & Front LH  3 and 4   -10  (14)   Approx. 18.0
                                    0  (32)   Approx. 12.0
                                   10  (50)   Approx. 7.4
                                   25  (77)   Approx. 4.0
                                   40 (104)   Approx. 2.3
                           Limit   55 (131) 
Thanks,

Tony Williams
QC CHARGE
1497 POINSETTIA AVE
Suite 154
VISTA, CA 92081-8542 USA
Office M-F, 9-5pm Pacific Time
1-760-798-0342
1-844-EV-PARTS
1-844-387-2787
EdmondLeaf
Posts: 1500
Joined: Tue Jan 18, 2011 2:18 pm
Location: Edmond, OK

Re: Battery melt down?

this what you may consider hot but it was reported that Leaf was doing very good in such temp
Image
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gbarry42
Posts: 888
Joined: Mon Jan 10, 2011 5:48 pm
Delivery Date: 06 May 2011
Location: Moonlight Beach

Re: Battery melt down?

It is imaginable, that somehow, somewhere in the world, at some time, a battery cell will go bad. You may be the first to see this. If so, the good news is, they find it, they replace it, and you're back on the road. Which is quite a bit better than some sensor with a loose connection driving you and the mechanics crazy for the next two or three years.

The drawback is that it is such a rare event that they will probably fly engineers in from Japan just to see it, and you'll be like, "Stop playing with it! I just want my LEAF back!"

The revealing thing about the temperature gauge is that if you look at the bars vs temperature chart, you can see that they don't allocate many bars to the normal expected temperatures. So you have to push the temperature way up (or down) into the "area of concern" before you see any significant change in the number of bars.
And there goes the first capacity bar! At 24,000 mi on 9/9/2013.
Second bar at 30,500 mi on 2/7/2015.
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TRONZ
Posts: 2240
Joined: Tue Sep 21, 2010 11:01 pm
Delivery Date: 31 Jan 2011
Leaf Number: 202
Location: Denver, CO

Re: Battery melt down?

Sounds like a software glitch. If it was the battery, it would have gone straight into shutdown mode to protect itself. We have seen shutdowns for minor AC problems that had nothing to do with the battery much less something as major as a failed cell. But if not, you would be the very first to have a battery failure and warranty repair. Keep us updated.

IMHO, if it was a battery problem you would also see a mob of just off the plane Japanese techs impounding your car. When I was at Acura (Parts Dept) and the Legend was brand new, we had a customer with a car fire in the main wiring harness. Japanese Honda techs dropped in like a scene from Minority Report. They roped off two full bays of the Service department and took that car apart. The harness was separated into every single wire, every wire and connection was tagged in Japanese and photographed. I guess they got the data they needed because then they just left without putting the car back together. :shock: The customer got a new legend from Sales.

If a LEAF driver has a story like this Acura driver then you will know something is up.
Every start, is as good as any start can ever be. - Douglas Darden

Stats;
2011 LEAF SL VIN#202, Delivered 01.30.11. Now, by far, the oldest LEAF in Colorado.
mckemie
Posts: 55
Joined: Sun Oct 03, 2010 12:46 pm
Delivery Date: 25 May 2011
Leaf Number: 1008
Location: Dale Texas
Contact: Website

Re: Battery melt down?

cfl wrote: battery suddenly dropped very low (he claimed it might be because of the temperature outside (100 Farenheit) and because the battery was too low (at 4 bars....). Still waiting for a call back
Central Texas, just finished up a summer with 84 days above 100 deg. Many days above 105. Leaf was driven most days 60-90 miles to near the bottom of the pack; we NEVER get home with two bars. Car has performed flawlessly.
VIN 1008 delivered 5/24/11
Turned 10k trouble-free miles 12/13/11
83% battery capacity at 18k miles 8/4/12
Silver plain-jane
30 miles south of Austin, Texas

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