electromotive
Posts: 49
Joined: Wed Aug 10, 2016 9:57 am
Delivery Date: 16 Jun 2011
Leaf Number: 003243
Location: Foothills of SNs East of Sac

Reset Capacity Bars

Wed Oct 26, 2016 4:11 pm

Who is capable of resetting the capacity bars on a LEAF? Only a dealership? Is it only my imagination, or are an excessive number of 2011-2013 LEAFs now appearing with questionable bars? Thank you.

arnis
Posts: 1023
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Reset Capacity Bars

Thu Oct 27, 2016 8:42 am

Anybody who has access to Nissan's diagnostic software.

Most likely some of those Leafs have their batteries replaced.
Also some of those Leafs may come from colder regions.
Cold region degradation is slower, expect up to 5x slower.

Whoever is buying second-hand Leaf should test the range on highway.
It only takes an hour :)
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

User avatar
Stanton
Forum Supporter
Posts: 2241
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: Reset Capacity Bars

Thu Oct 27, 2016 12:03 pm

Bottom line: you should never buy a used Leaf without putting some sort of GID meter on it (LeafSpy/LeafDD/etc).
2011 Blue Ocean SV w/floor mats & window tint
Lithium Pros 12v LiFePO4 battery w/Antigravity Battery Tracker
FIAMM 74100 horns
Wet Okole seat covers
Tor's low-power heater mod
2013 sun visor
Battery Pack replaced (Rev E) @51 months and 41k miles

User avatar
DuncanCunningham
Posts: 528
Joined: Thu Mar 26, 2015 10:02 am
Delivery Date: 15 Apr 2015
Location: Bountiful, UT

Re: Reset Capacity Bars

Thu Oct 27, 2016 12:21 pm

so when you plug in leafspy pro.. what number should you look at to see past any messing about with the bars?
Statler: Wake up you old fool. You slept through the show.
Waldorf: Who's a fool? You watched it.

2015 Leaf S (leased until May 2018, Bought out in Jan 2017)
2012 Leaf SL (purchased May 2015)

dhanson865
Moderator
Posts: 1498
Joined: Wed May 25, 2011 7:12 am
Leaf Number: 16156
Location: Tennessee

Re: Reset Capacity Bars

Thu Oct 27, 2016 12:37 pm

DuncanCunningham wrote:so when you plug in leafspy pro.. what number should you look at to see past any messing about with the bars?
Ahr and SOH are the only two I'd look at.

A new battery is 66 ahr, 1 bar lost around 50 ah, 2 bars lost around 46ah, 3 bars lost around 42 ah.

If the ahr are low and the bars are high they reset it, not a bad thing on its own but if you drop 4 bars in 60,000 miles or 60 months you get a free battery from Nissan, go over the months or miles and you don't.

You just want to know what you are really dealing with.

If the ahr is reasonable vs the bars on the dash then you can use SOH% as the easier to look at number on a 100% style scale but that number resets with the dash bars so use ahr to see if you can trust it then SOH% for a convenient percentage.

in table form

* Brand new - about 66.25 Ahr#
* Loss of bar 12 - between 53.75 AHr and 56 AHr
* Loss of bar 11 - between 49.75 AHr and 52 AHr
* Loss of bar 10 - between 45.75 AHr and 48 AHr
* Loss of bar 9 - between 41.75 AHr and 44 AHr

\#table is for 24 kWh packs, numbers would differ for a 30 kWh pack.
Blue 2012 Leaf 195/65/15 tires, 15" Rims
Silver 2012 Leaf 16" stock wheels
http://www.mynissanleaf.com/wiki/index. ... acity_Loss
(efficiency 3.x KW vs 6.x KW)
please join Truedelta.com and input your repairs.

SurfHawk
Posts: 83
Joined: Thu Sep 22, 2016 1:43 pm
Delivery Date: 04 Oct 2016
Location: Santa Barbara

Re: Reset Capacity Bars

Thu Oct 27, 2016 2:33 pm

I used Leaf Spy to buy a 12 bar 2013 a month ago. SOH was 91% and AHR was 59, so I bought it. Now a month later im 87% SOH and 56 AHR. Not sure what's going on, but I didn't think it was reset based on AHR.
2013 Leaf S - Purchased 10/2016
4kW Solar - Installed 11/2016

User avatar
JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Reset Capacity Bars

Thu Oct 27, 2016 3:52 pm

SurfHawk wrote:I used Leaf Spy to buy a 12 bar 2013 a month ago. SOH was 91% and AHR was 59, so I bought it. Now a month later im 87% SOH and 56 AHR. Not sure what's going on, but I didn't think it was reset based on AHR.
colder weather, colder pack?

LeftieBiker
Moderator
Posts: 15473
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Reset Capacity Bars

Thu Oct 27, 2016 3:54 pm

SurfHawk wrote:I used Leaf Spy to buy a 12 bar 2013 a month ago. SOH was 91% and AHR was 59, so I bought it. Now a month later im 87% SOH and 56 AHR. Not sure what's going on, but I didn't think it was reset based on AHR.
Do you charge to 100% or 80%? If the latter, try checking it after a full 100% charge.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

AntronX
Posts: 83
Joined: Sun May 22, 2016 12:17 pm
Delivery Date: 14 May 2016

Re: Reset Capacity Bars

Thu Oct 27, 2016 4:36 pm

SurfHawk wrote:I used Leaf Spy to buy a 12 bar 2013 a month ago. SOH was 91% and AHR was 59, so I bought it. Now a month later im 87% SOH and 56 AHR. Not sure what's going on, but I didn't think it was reset based on AHR.
How many miles do you get on full 100% charge before low battery warning? How many miles per kWh do you drive?

SurfHawk
Posts: 83
Joined: Thu Sep 22, 2016 1:43 pm
Delivery Date: 04 Oct 2016
Location: Santa Barbara

Re: Reset Capacity Bars

Thu Oct 27, 2016 5:09 pm

- Weather has been about the same since I bought it, maybe a bit cooler but we are still talking about southern california.

- First couple weeks I only charged to 80%. Then I read about re-balancing so I've been charging to 100%. However I have been using the charging timer, does that let it re-balance? Also, I am only charging via L1 at home, getting L2 installed next week. Some brief L2 charging in the wild a few times a week.

- I haven't tracked how many miles I get from 100% to LBW. I'm doing about 1/2 freeway driving at 65, and half city driving. I average about 4.2mi/kWh.

Here is a screenshot with Leaf Spy prediciting I'll get 72miles until 10% at 100% charge @ 4.4mi/kWh, which I'm happy with for what I thought was a 91% SOH car. EDIT: sorry for giant photos, will try to fix.
Image

Here is my latest AHR and SOH
Image
Last edited by SurfHawk on Thu Oct 27, 2016 5:17 pm, edited 1 time in total.
2013 Leaf S - Purchased 10/2016
4kW Solar - Installed 11/2016

Return to “General / Main Owners Forum”