SierraQ
Posts: 185
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Delivery Date: 02 Sep 2011
Location: Dallas, TX

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

Tue Aug 07, 2012 1:44 pm

opossum wrote:
edatoakrun wrote:The only way to I can see to reconcile your report of kWh use, 25%-30% below that usually seen on new LEAFs, and the "85% capacity remaining" report you state came from Nissan, is that your charge level was limited to a significantly lower percentage of total battery capacity, presumably by the BMS.
Agreed. I've seen one or two other possible explanations in the last few posts also. It's okay. Maybe Nissan will get a chance to explain to a lawyer why they market it as a 24 kWhr battery pack, if they permanently or seasonally limit people to perhaps 75% of it... but only after a year of ownership. Now wouldn't *that* be an interesting discovery process! :twisted:
Not necessarily. When is the last time you saw 500GB of usable space on your "500GB" hard drive or 12mb useful throughput from your "12mb" broadband line? I think there is precedent for not including necessary overhead in figures like this. However, a more challenging problem for them would be explaining the "100 mile" range figure which assumes no overhead but is like saying your ICE gets 75 MPG... so long as you drive it at 30 MPH with a healthy tailwind and never use the brake. Unreasonable.

A seasonal limitation, should it exist, would also be harder to explain away since they never mentioned it with respect to heat (they did for cold). Anyway, I think 85% is probably the entire pack but it would be very bad form for them to try to claim that this is okay.
"Please tell me this doesn't run on gas! Gas explodes, you know?" --Susan in I-Robot

edatoakrun
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Leaf Number: 2184
Location: Shasta County, North California

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

Tue Aug 07, 2012 1:51 pm

Gonewild wrote:OK your bars are back but can you drive as far as you did a few month ago?

My guess NO they just reset the counter
If you were really paranoid, you might suspect TickTock's special treatment (being invited to have his car checked even before he filed a complaint, IIRC?) might have been followed up with a replacement battery, just to disrupt his ongoing surveillance of actual/available battery capacity...*

*please note the Ellipsis (...)
no condition is permanent

LEAFfan
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Leaf Number: 1855
Location: Phoenix Area

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

Tue Aug 07, 2012 2:06 pm

Ed, if that were the case, then those drivers that babied their cars here would still have 12 bars instead of 10 or 11. It's definitely not the cause of major degradation.
2013 LEAF SV Del. 2/28/13
2013 LEAF World Record for Most Miles Driven On One Charge-188 miles/8.8 m/kW h
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TonyWilliams
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:19 pm

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.

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OrientExpress
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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 2:25 pm

0
Last edited by OrientExpress on Thu Sep 13, 2012 12:51 pm, edited 1 time in total.
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!

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TomT
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Leaf Number: 000360
Location: California, now Georgia
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:27 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.
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
2019 Model 3; LR, RWD, FSD, 19" Sport Wheels, silver/black; built 3/17/19, delivered 3/29/19.

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TickTock
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Leaf Number: 3626
Location: Queen Creek, Arizona
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Re: Early Capacity Losses-Was(Lost a bar...down to 11)

Tue Aug 07, 2012 2:29 pm

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.

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 2:32 pm

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 climate inhabitants
Last edited by EdmondLeaf on Tue Aug 07, 2012 2:43 pm, edited 1 time in total.

DesertDenizen
Posts: 399
Joined: Sun Aug 28, 2011 9:23 am
Delivery Date: 11 Sep 2014
Leaf Number: 314507
Location: Tucson

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

Tue Aug 07, 2012 2:36 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

How do you know Tom is not hot? :lol:
Fully charged by photo voltaic system.
Nov 9 2014 got my 2015 lease, SL. My third Leaf. Tucson AZ. 5,500 miles, 5.2 long term m/kwh. Let us see if the 'lizard' battery does better than my 2011, which lost a capacity bar at 6,771 miles.

camasleaf
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Location: Camas, WA

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

Tue Aug 07, 2012 2:37 pm

SierraQ wrote:... A seasonal limitation, should it exist, would also be harder to explain away since they never mentioned it with respect to heat (they did for cold) ....
I believe Nissan owner manual says somewhere that the distance travel in one charge depends on many factors. Did they only listed low battery temperature in those factors? Or they just said temperature? I do not have the owners manual handy.
2011 SLe 06/17/11 Over 89000 miles 61%SOH 13.8kWh
2018 Honda Clarity PHEV
2014 Model S P85 77888 miles 256mile range
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