TronJockey
Posts: 9
Joined: Sat Jul 06, 2019 1:32 pm
Delivery Date: 06 Jul 2019
Leaf Number: 4054

2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Tue Aug 11, 2020 5:07 pm

My new 2019 Leaf SV Plus will only go 150 miles before I get "Low Battery Warning" and it reaches 0% SOC after only 165 miles. This is driving under ideal conditions, non-stop, with tires at 39 psi, cruise set for 55mph, HVAC OFF, ambient of 80F, on essentially flat ground (the DelMarVa Peninsula is notoriously FLAT). After full charge the SOC reads 100% as expected and the GOM indicates 261 miles possible range. For the first 50% of SOC the car's capacity gauge operates relatively normal achieving anywhere from 1.9 to 2.6 miles per every 1% of SOC meter. After that point the rate of capacity loss accelerates down to 1.0 miles for every 1% SOC. Strangely Leaf Spy indicates that the battery still has nearly 24kWh of charge left even after the vehicles SOC gauge says 0% or less displaying just dashes (---). The car still drives well with no reduced power. I do get a "Low Battery" warning and a "Charge Now" warning but no turtle mode. So far I forced it to go beyond the 0% or "---" indication all the way to 175 miles but I'm worried about running out or damaging the battery. Leaf Spy still indicates 21.6kWh remain and 37% SOC. Somethings terribly wrong. Leaf Spy indicates my pack voltage is down to 347.3V with an average 3.618 cell voltage. Dealer ignores me and states he can find no issues. Can someone tell me what the pack voltage should be when down to 0% and what the individual cell voltages should be. I don't want to take them too low. The car was purchased as a left over 2019 just 4 months ago and has only 6000 miles on it.
"Big thanks for all the comments". I love these vehicles. This is my second Leaf. I just gave my 2015 SV to my daughter for her 16th Bday.
Last edited by TronJockey on Thu Aug 13, 2020 5:57 pm, edited 3 times in total.

cwerdna
Posts: 10989
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Tue Aug 11, 2020 5:16 pm

Reset your miles/kWh gauge before embarking. How many miles/kWh do you get?

Average cell voltage isn't that will cause shutdown... it's the lowest module/cell voltage. Is there a huge imbalance (in mV) at not very low state of charge % (say 30ish %)?

I don't care how many kWh Leaf Spy claims you have. How many gids remaining when "vehicles SOC gauge says 0% or less displaying just dashes (---)" happens?

Also, out of curiosity, how many gids on a full charge?

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

DougWantsALeaf
Posts: 1970
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Tue Aug 11, 2020 5:26 pm

I would tske it to the dealer. Something is goofy with your battery. Guessing the Leaf believes its a 40, but actually a 62??

How long have you had the car?
2019 S Plus (97.98% SOH) & 2019 SV Plus (94.84% SOH) Both Silver
2013 Leaf SV sold 2019 with 11 bars
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV+: 242 Highway miles @ 4.5 miles/kWh

cwerdna
Posts: 10989
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Tue Aug 11, 2020 5:33 pm

His dealer already blew him off and he said "The car was purchased as a left over 2019 just 4 months ago and has only 6000 miles on it."

I also would want to confirm it's a 62 kWh car and not 40 kWh. Does it say Plus on the car? The # of gids on a full charge informs us about the capacity, as well. And, I want to know how many gids when "empty".

From a wild guess, I suspect a bad cell causing big imbalance (e.g. https://www.mynissanleaf.com/viewtopic. ... 64#p457964) or bad connection(s) inside the pack.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

LeftieBiker
Moderator
Posts: 15276
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Tue Aug 11, 2020 7:33 pm

Yes, bad cell #1 likelihood, lying dealership selling them a 40kwh Leaf is #2.
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.

TronJockey
Posts: 9
Joined: Sat Jul 06, 2019 1:32 pm
Delivery Date: 06 Jul 2019
Leaf Number: 4054

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Thu Aug 13, 2020 4:55 pm

cwerdna wrote:
Tue Aug 11, 2020 5:16 pm
Reset your miles/kWh gauge before embarking. How many miles/kWh do you get?

Average cell voltage isn't that will cause shutdown... it's the lowest module/cell voltage. Is there a huge imbalance (in mV) at not very low state of charge % (say 30ish %)?

I don't care how many kWh Leaf Spy claims you have. How many gids remaining when "vehicles SOC gauge says 0% or less displaying just dashes (---)" happens?

Also, out of curiosity, how many gids on a full charge?
- Leaf Spy reports one severely weak cell (cell #40)

- Had about 250 GIDs and 22kWh remaining after hitting 0%SOC. Battery stack voltage was about 341V. Individual cells
averaged 3.61V (these values are close, I'm trying to remember what they were before I charged the car last night)

- Is nearly fully charged at the moment (95.3% SOC) and Leaf Spy is displaying 715 GIDs and 55.4 kWh

- After reaching 0% last night car was still running well, no limit mode even after "---". About 170 miles traveled. After charging overnight I attempted to drive the car but I immediately began getting warnings and the car was in "Turtle" mode. I thought Turtle mode would only occur when the battery was drained.
Last edited by TronJockey on Thu Aug 13, 2020 5:44 pm, edited 1 time in total.

cwerdna
Posts: 10989
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Thu Aug 13, 2020 4:58 pm

^^^
That's crazy! My 11 bar '13 Leaf doesn't even reach 250 gids on a 100% charge. It's about 230ish to 240ish gids on a full charge, at best.

As for severely weak cell 40, what was the imbalance in mV at the time? What was Leaf Spy's reported % SoC at that time?

Do a Google search for site:mynissanleaf.com cvli. Unfortunately, for Leaf Plus, the voltages that one should run CVLI test at would be different than gen 1 Leafs.

715 gids on a nearly full Plus sounds close to inline w/what I'd expect.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

TronJockey
Posts: 9
Joined: Sat Jul 06, 2019 1:32 pm
Delivery Date: 06 Jul 2019
Leaf Number: 4054

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Thu Aug 13, 2020 5:03 pm

cwerdna wrote:
Tue Aug 11, 2020 5:33 pm
His dealer already blew him off and he said "The car was purchased as a left over 2019 just 4 months ago and has only 6000 miles on it."

I also would want to confirm it's a 62 kWh car and not 40 kWh. Does it say Plus on the car? The # of gids on a full charge informs us about the capacity, as well. And, I want to know how many gids when "empty".

From a wild guess, I suspect a bad cell causing big imbalance (e.g. https://www.mynissanleaf.com/viewtopic. ... 64#p457964) or bad connection(s) inside the pack.
- the car is an SV-Plus. I plan to take it to an automobile scale at the local trucking company to have it weighed. I understand the Plus should be roughly 340 lbs heavier.

- Leaf Spy reports a severely weak cell #40.

TronJockey
Posts: 9
Joined: Sat Jul 06, 2019 1:32 pm
Delivery Date: 06 Jul 2019
Leaf Number: 4054

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Thu Aug 13, 2020 5:09 pm

cwerdna wrote:
Thu Aug 13, 2020 4:58 pm
^^^
That's crazy! My 11 bar '13 Leaf doesn't even reach 250 gids on a 100% charge. It's about 230ish to 240ish gids on a full charge, at best.

As for severely weak cell 40, what was the imbalance in mV at the time? What was Leaf Spy's reported % SoC at that time?

Do a Google search for site:mynissanleaf.com cvli. Unfortunately, for Leaf Plus, the voltages that one should run CVLI test at would be different than gen 1 Leafs.

715 gids on a nearly full Plus sounds close to inline w/what I'd expect.
- The car presently has a near full charge (95.3 SOC) and Leaf Spy is reporting min/avg/max = 3.321 / 3.618 / 3.628 (307 mv)
- When the car was at 0% SOC why was there still nearly 24kWh remaining?

cwerdna
Posts: 10989
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: 2019 Leaf SV Plus only gets 160 miles till gauge is at 0%

Thu Aug 13, 2020 5:11 pm

TronJockey wrote:
Thu Aug 13, 2020 5:09 pm
- The car presently has a near full charge (95.3 SOC) and Leaf Spy is reporting min/avg/max = 3.321 / 3.618 / 3.628 (307 mv)
That is insane. When the car isn't very low on juice, when just in READY mode (green car w/arrows), at least on gen 1 Leafs, you shouldn't see any more than 20ish to 30ish mV imbalance.

Have a(nother?) dealer run the CVLI test.

Hopefully someone else w/a Leaf Plus can chime in on typical imbalance when above say 20% SoC...

Hate to make you shell out money, but maybe buy a 1 day subscription to https://www.nissan-techinfo.com/deptsubs.aspx to look at the 2019 Leaf service manual about what they expect for CVLI test on Plus? You should be able to simulate the equivalent via Leaf Spy. The values at https://www.mynissanleaf.com/viewtopic.php?t=16070 are probably not correct for anything other than a 24 kWh pack.

https://www.mynissanleaf.com/viewtopic. ... 64#p457964 was an example of a bad module on a 24 kWh Leaf that BiggieJohn succeeded in getting his dealer to replace.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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