13 Miles Lost on GOM in One Month?

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LightyKD

Member
Joined
Sep 23, 2020
Messages
6
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]
 
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.
 
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 said:
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!
Click to expand...
 
LightyKD said:
but I currently don't have a ODB2 adapter that Leaf Spy is friendly with so that's currently out the question.
Click to expand...
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.
 
knightmb said:
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...
Click to expand...
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.
 
jlv said:
knightmb said:
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...
Click to expand...
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.
Click to expand...
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.
 
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.
 
It's interesting to play with the GOM. You can see how much it changes with ECO mode, and with the heat or A/C on.

You'll probably find that some routes you take are more energy efficient than others. I haven't been able to explain some of the differences.

The GOM always amuses me in the mountains. It might show 20 miles after climbing to a trailhead, and then 70 miles part way back down to the plains.

I live at a lower elevation than anywhere that I go, so the GOM reads a bit optimistically whenever I leave home. The opposite would be true for someone who lives at higher elevation than their destinations.

I've never used LEAFSpy. I think I'm happiest when I don't know too much. :D

Congrats--hope you enjoy the car!
 
I am curious about the mileage and the SOH on the battery as well. I'm not aware of anyone that still has a 12 bar 2013 given the age of the battery now. If you can verify it in LeafSpy, it would be the first of 2020 that I have read about. The last one I could find was mentioned back in 2018. You may have gotten lucky and found the best battery in a 2013 that has aged very well. ;)

LightyKD said:
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.
Click to expand...
 
knightmb said:
I am curious about the mileage and the SOH on the battery as well. I'm not aware of anyone that still has a 12 bar 2013 given the age of the battery now. If you can verify it in LeafSpy, it would be the first of 2020 that I have read about.
Click to expand...
LeafSpy will not exclude a reset

My 2013 LEAF is about 11.5 bars (83% SOH). If no one else wants the crown, I'll put it on a shelf in the garage.
 
It may not, but does the BCM reset also reset the number of times the L2/L3 counters are set at? So if a 2013 with 12 bars only had a low number of L2/L3 connects that couldn't account for the total mileage for example. Mine has over 2,000 L2 plugins and hundreds of L3 plugins logged at this point 7 years later. :lol:
SageBrush said:
knightmb said:
I am curious about the mileage and the SOH on the battery as well. I'm not aware of anyone that still has a 12 bar 2013 given the age of the battery now. If you can verify it in LeafSpy, it would be the first of 2020 that I have read about.
Click to expand...
LeafSpy will not exclude a reset

My 2013 LEAF is about 11.5 bars (83% SOH). If no one else wants the crown, I'll put it on a shelf in the garage.
Click to expand...
 
knightmb said:
It may not, but does the BCM reset also reset the number of times the L2/L3 counters are set at? So if a 2013 with 12 bars only had a low number of L2/L3 connects that couldn't account for the total mileage for example. Mine has over 2,000 L2 plugins and hundreds of L3 plugins logged at this point 7 years later.
Click to expand...
Fair question.
I think that this has been discussed but I don't remember the answer. I suspect that the reset does not change the charger counter.
 

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