LightyKD
Posts: 6
Joined: Wed Sep 23, 2020 9:02 pm
Delivery Date: 24 Sep 2020

13 Miles Lost on GOM in One Month?

Wed Sep 30, 2020 5:37 pm

Hello everyone,

New member but I have been lurking around here for close to two months. This place seems to be the most knowledgeable Nissan Leaf community around. It's nice to be here.

I received my used 2013 Nissan Leaf from Carvana roughly a month ago (the last week of August). When I first started driving it, a 100% charge would net me 95 miles on the "guess o meter". After about 2 or 3 100% charges, the meter dropped to 100% = 85 then 100% = 84 and today I'm at 100% = 82. Now I read that cold weather could have an effect on driving range. September is a transition month with summer heat turning into cooler fall days. I wasn't expecting to lose 13 Miles in a month. At this rate, I'm afraid to see what happens when the weather becomes really cold.

Should I take this car to Nissan and have her checked out or is this normal? I have a feeling that someone will suggest using Leaf Spy to check the car out but I currently don't have a ODB2 adapter that Leaf Spy is friendly with so that's currently out the question. I look forward to reading all of your thoughts. Thank you!

[MOD: updated title]

LeftieBiker
Moderator
Posts: 15518
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: 13 Miles Lost in One Month?

Wed Sep 30, 2020 10:45 pm

The range estimator is commonly called the "Guess O Meter" for a reason: it simply takes the last few minutes of energy use and extrapolates them into a projected range at that consumption rate. It is not useful to the extent you are suggesting. Why is your estimated range dropping? The GOM is likely adjusting to your consumption patterns, but - again - it is also just blindly, dumbly using the last few minutes of driving as a template for a whole trip.
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.

SageBrush
Posts: 5280
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: 13 Miles Lost in One Month?

Thu Oct 01, 2020 4:52 am

LightyKD wrote:
Wed Sep 30, 2020 5:37 pm
Should I take this car to Nissan and have her checked out ?
No
I have a feeling that someone will suggest using Leaf Spy
Yes
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

knightmb
Posts: 500
Joined: Mon Jan 12, 2015 7:41 pm
Delivery Date: 15 Sep 2013
Leaf Number: 414897
Location: Franklin, TN

Re: 13 Miles Lost in One Month?

Thu Oct 01, 2020 6:04 am

As a fellow 2013 Leaf owner with a battery in good condition given its age, you would not get 95 miles a charge unless you have a brand new replaced battery. I'm getting 72 miles a charge and that is probably closer to what your vehicle will settle in on pretty soon if the battery is the original in good condition.

It sounds like you have been subject to the notorious computer reset (google search for Nissan Leaf BCM Reset to get more info) to make it seem like the vehicle has a brand new battery when it does not (which means the computer has to re-learn this less capacity over time).

Your Leaf is *probably* fine, I wouldn't run to go pay to have it checked, but Leaf Spy will give you the personal info you need to make a better judgement call, especially if you are sitting around 16 kWh of capacity at full charge like mine does now.

Where are you located (general location like city, state, not an exact address), maybe someone here to meet up to do a quick check to give you more details about the internal condition of your vehicle?
LightyKD wrote:
Wed Sep 30, 2020 5:37 pm
Hello everyone,

New member but I have been lurking around here for close to two months. This place seems to be the most knowledgeable Nissan Leaf community around. It's nice to be here.

I received my used 2013 Nissan Leaf from Carvana roughly a month ago (the last week of August). When I first started driving it, a 100% charge would net me 95 miles on the "guess o meter". After about 2 or 3 100% charges, the meter dropped to 100% = 85 then 100% = 84 and today I'm at 100% = 82. Now I read that cold weather could have an effect on driving range. September is a transition month with summer heat turning into cooler fall days. I wasn't expecting to lose 13 Miles in a month. At this rate, I'm afraid to see what happens when the weather becomes really cold.

Should I take this car to Nissan and have her checked out or is this normal? I have a feeling that someone will suggest using Leaf Spy to check the car out but I currently don't have a ODB2 adapter that Leaf Spy is friendly with so that's currently out the question. I look forward to reading all of your thoughts. Thank you!
Last edited by knightmb on Thu Oct 01, 2020 6:24 pm, edited 1 time in total.
2013 Leaf SV

User avatar
jlv
Moderator
Posts: 1450
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

New owner: DO NOT LOOK AT THE GOM

Thu Oct 01, 2020 7:48 am

LightyKD wrote:
Wed Sep 30, 2020 5:37 pm
but I currently don't have a ODB2 adapter that Leaf Spy is friendly with so that's currently out the question.
Buy one. They are inexpensive to purchase but extremely valuable in the data you will unlock about your car.

Basically, you don't have "13 Miles Lost in One Month" because you never had those 13 miles. The GOM is worthless. Never bother with it -- certainly don't compare it from day to day. It neither tells you the remaining capacity of your battery nor does it tell you the car's range.

Your range is based upon 2 things: the energy available in your battery (kWh) and your driving efficiency (mi/kWh).

Close to when I got rid of it, my 2013 was showing 100 miles on my GOM. That was a joke, especially since LeafSpyPro was showing me 19.5 kWh in the battery at 100% charge. That's about 17.5 kWh available. This is the key number to know about your battery. When it drops (mine was 22.0 kWh when I first got the car), it means you've lost range.

But your actual range is based upon how you drive the car - your efficiency. After 4 years in the LEAF, I had learned to drive sedately enough to average 4.2 mi/kWh for most driving. That meant my car's range for me was about 74 miles. But when I first got the car, my efficiency was around 3.3-3.5 mi/kWh. Were I still driving like that with my degraded battery, my range in the car would be closer to 60 miles.

(And your efficiency drops when you use heat in the winter, which coupled with the battery holding less charge, means your winter range is less than your summer range)

The car will show you your average efficiency. Reset that display on the dash and see how your do over a week of driving. That will help you to learn to eek out the miles possible in your battery.

And most importantly, get an ODB-II adapter and LeafSpyPro so you can know how much battery you have.
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18, 34K mi, AHr 58, SOH 87%)
Tesla S 75D (3/17, 45K mi)
Tesla X 100D (12/18, 23K mi)
ICE free since '18
100K+ 100% BEV miles since '14

User avatar
jlv
Moderator
Posts: 1450
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: 13 Miles Lost in One Month?

Thu Oct 01, 2020 7:50 am

knightmb wrote:
Thu Oct 01, 2020 6:04 am
It sounds like you have been subject to the notorious computer reset (google search for Nissan Leaf BCM Reset to get more info)

...around 16 k/Wh of capacity at full charge like mine does now...
Please fix that. There is no unit called "k/Wh".


There is no evidence here of a BMS reset. If he had said he went from 12 bars to 11 in a short period of time, or if he had LeafSpyPro and saw SOH start at 98% and drop to 90%, then we might ponder that. Instead he's purely going on the GOM.
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18, 34K mi, AHr 58, SOH 87%)
Tesla S 75D (3/17, 45K mi)
Tesla X 100D (12/18, 23K mi)
ICE free since '18
100K+ 100% BEV miles since '14

SageBrush
Posts: 5280
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: 13 Miles Lost in One Month?

Thu Oct 01, 2020 8:11 am

jlv wrote:
Thu Oct 01, 2020 7:50 am
knightmb wrote:
Thu Oct 01, 2020 6:04 am
It sounds like you have been subject to the notorious computer reset (google search for Nissan Leaf BCM Reset to get more info)

...around 16 k/Wh of capacity at full charge like mine does now...
Please fix that. There is no unit called "k/Wh".


There is no evidence here of a BMS reset. Had he said he went from 12 bars to 11 in a short period of time, or if he had LeafSpyPro and saw SOH start at 98% and drop to 90%, then we might ponder that. Instead he's purely going on the GOM.
Yep.

OP sounds like a case of "you mean using cabin heating reduces range !?" but he will not be convinced until he trends the battery capacity.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

LightyKD
Posts: 6
Joined: Wed Sep 23, 2020 9:02 pm
Delivery Date: 24 Sep 2020

Re: 13 Miles Lost on GOM in One Month?

Thu Oct 01, 2020 8:54 am

Could someone provide a Amazon or eBay link to a ODB2 adapter thank has been verified to work with Leaf Spy? Also, two things:

1) I'm in Henrico VA if someone here happens to be nearby

2) My battery still has all 12 bars.

Oilpan4
Posts: 1731
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: 13 Miles Lost on GOM in One Month?

Thu Oct 01, 2020 11:26 am

WiFi dongle to pair to my phone to run the free version of leaf spy.

SageBrush
Posts: 5280
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: 13 Miles Lost on GOM in One Month?

Thu Oct 01, 2020 12:05 pm

LightyKD wrote:
Thu Oct 01, 2020 8:54 am
Could someone provide
Read the LeafSpy help, found via a www search. Not thaaat hard
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

Return to “New Members & Newbie Questions”