EdmondLeaf
Posts: 1500
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Jul 24, 2012 9:48 am

Nissan Reacts To LEAF’s Dropping Battery Capacity In Southern US. Resolution Drawing Near?

http://insideevs.com/nissan-reacts-to-leafs-dropping-battery-capacity-in-southern-us-resolution-drawing-near/

DaveinOlyWA
Posts: 13841
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Leaf Number: 314199
Location: Olympia, WA
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Jul 24, 2012 9:52 am

EdmondLeaf wrote:
Nissan Reacts To LEAF’s Dropping Battery Capacity In Southern US. Resolution Drawing Near?

http://insideevs.com/nissan-reacts-to-leafs-dropping-battery-capacity-in-southern-us-resolution-drawing-near/


i think we all need to "consider" that Nissan has addressed the issue much quicker than we had realized. once again, the 2013 improvement announcements have been vague but...

http://www.greencarreports.com/news/107 ... 1000136852

At the moment however, we know very little about the 2013 Leaf, other than a few updates Nissan’s Mark Perry has already detailed.

Nissan is updating the Leaf’s heater with a more efficient one, which Nissan has said will improve the winter range of the Leaf by 20 to 25 miles.


there is simply no way that can happen unless the pack is bigger or its thermally controlled...
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Herm
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Location: Timbuktu, Mali

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

Tue Jul 24, 2012 9:56 am

DaveinOlyWA wrote:there is simply no way that can happen unless the pack is bigger or its thermally controlled...


... or Mr Perry is exaggerating again...

DaveinOlyWA
Posts: 13841
Joined: Sat Apr 24, 2010 7:43 pm
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Jul 24, 2012 10:01 am

Herm wrote:
DaveinOlyWA wrote:there is simply no way that can happen unless the pack is bigger or its thermally controlled...


... or Mr Perry is exaggerating again...


nah...the fact that he did not go into details on how it would benefit us or fail to mention the pack would have cooling was probably designed to not put any seed into any Phoenician's head...

personally, i think it was a great plan...timing is just a bit off is all
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

gsleaf
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Location: Portland, OR

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

Tue Jul 24, 2012 10:04 am

Herm wrote:
DaveinOlyWA wrote:there is simply no way that can happen unless the pack is bigger or its thermally controlled...


... or Mr Perry is exaggerating again...


I'm sure it's a combination of exaggeration and a more efficient heater (heat pump instead of the current heater). From what I read there was no indication of a bigger battery pack.

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mwalsh
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Leaf Number: 0213
Location: Garden Grove, CA

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

Tue Jul 24, 2012 10:08 am

Herm wrote:
DaveinOlyWA wrote:there is simply no way that can happen unless the pack is bigger or its thermally controlled...


... or Mr Perry is exaggerating again...


I think I remember from somewhere there being a rumored chemistry tweak in the works for the Infiniti battery pack, which is supposedly the same size/form factor as the one from the LEAF, that would allow for improved range. If true, maybe this will also be applied to 2013 LEAFs?
2011 Blue Ocean SL with 80,000 miles
2015 pack on 12/30/15
Tinted windows
Bridgestone Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

EdmondLeaf
Posts: 1500
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Location: Edmond, OK

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

Tue Jul 24, 2012 10:13 am

I love to read all that is posted here, and elsewhere, but I still reserve right to form my opinion. So far I did not see any official announcement about MY2013 as well anything new that resolution is near.

DaveinOlyWA
Posts: 13841
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Jul 24, 2012 10:29 am

gsleaf wrote:
Herm wrote:
DaveinOlyWA wrote:there is simply no way that can happen unless the pack is bigger or its thermally controlled...


... or Mr Perry is exaggerating again...


I'm sure it's a combination of exaggeration and a more efficient heater (heat pump instead of the current heater). From what I read there was no indication of a bigger battery pack.


not sure a heat pump will give us that much. there is not enough to gain by making the heater work better. fact of the matter; without a thermal controls, the LEAF pack stores at least 2 KW LESS when it is cold.

i ran several tests of this last winter and each showed me to only have 18.5 to 19.2 KW at my disposal and this is on a pack with ZERO degradation, so all the loss was due to a cold pack.

take that equation out and i was really only losing maybe 10-12 miles of range due to running the heater. of course that depended on how fast i was driving, how far i was going and how cold it was.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

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RegGuheert
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Leaf Number: 5926
Location: Northern VA

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

Tue Jul 24, 2012 11:04 am

DaveinOlyWA wrote:i think we all need to "consider" that Nissan has addressed the issue much quicker than we had realized.
By my way of thinking, Nissan has addressed absolutely nothing. They have not even acknowledged that there is any problem with the Nissan LEAFs they sold to customers in Phoenix. They have not retracted or clarified public statements like the one in the manual that their customers can expect to have 80% capacity after five years. And I suspect they are still selling LEAFs in Phoenix to people when they know there is a decent probability that those LEAFs will be beyond the standard definition of battery end-of-life (<70% original capacity) before the length of a normal lease has passed.
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

thankyouOB
Posts: 3583
Joined: Mon Feb 21, 2011 11:14 am
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Leaf Number: 1442
Location: Coastal LA

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

Tue Jul 24, 2012 11:14 am

I dont expect them to rush out an announcement about the testing and what they plan to do.
Nothing would be worse now from their point of view than saying something precipitous and wrong, and later retracting that.

this approach is prudent and what should be expected from a big car company such as Nissan.
I give them credit for working on it, just as I give credit to the AZs for bringing attention to it.

I would think that taking six cars for testing, providing loaners and walk-around money is an acknowledgement, albeit more tacit than you would like.
But AZs should keep up the pressure. Good cop, bad cop; squeaky wheel; whatever you want to call it.
Last edited by thankyouOB on Tue Jul 24, 2012 11:31 am, edited 1 time in total.
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