DougWantsALeaf
Posts: 912
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Leaf Plus VLB or Turtle

Thu Sep 05, 2019 5:15 am

Board

Has anyone taken their Leaf Plus down to VLB or Turtle mode and have a Leafspy reading to go with it?

I have gone well into LB (with dash at 1% for a while), but haven’t had the patience to take it to VLB.
2019 SV Plus Silver
2013 Leaf SV
100 Mile Club Member (Number 87)
Max distance on 13 Leaf: 120 miles
Max distance on 19 Leaf: 242 Highway 4.5 miles/kWh (4.9 KWh remaining)

DougWantsALeaf
Posts: 912
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Leaf Plus VLB or Turtle

Mon Sep 09, 2019 6:24 pm

Wow, maybe nobody has yet.. because the buffer is so big at the bottom.
2019 SV Plus Silver
2013 Leaf SV
100 Mile Club Member (Number 87)
Max distance on 13 Leaf: 120 miles
Max distance on 19 Leaf: 242 Highway 4.5 miles/kWh (4.9 KWh remaining)

NotATesla
Posts: 30
Joined: Mon Jun 10, 2019 5:06 am
Delivery Date: 23 May 2019
Leaf Number: 311925

Re: Leaf Plus VLB or Turtle

Mon Sep 09, 2019 7:24 pm

We haven't gone below 9%. Trying to get to turtle mode interests me, but I also have vested interest in not driving my battery down that low...
2019 SL Plus Silver

GerryAZ
Gold Member
Posts: 2248
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Leaf Plus VLB or Turtle

Tue Sep 10, 2019 10:58 pm

OK, here is some information from my first full discharge test of the 2019 (mostly freeway driving with air conditioning set on AUTO at 76 F):
Ending odometer reading: 1149 miles
204.4 miles total
34.5 miles after LBW (6% SOC on dash and 112 "Gids" on LEAF Spy when warning popped up on dash display)
30.5 miles after GOM went to flashing -- (no VLBW audible or visual warning) (2% SOC on dash and 80 "Gids" on LEAF Spy)
0.3 miles after Turtle to get home (-- SOC and 9 "Gids")
A/C set to full cold in driveway for about 15 minutes until Shutdown (1 "Gid" on LEAF Spy)
3.6 mi/kWh on dash display
12.5 hours estimated charging time on dash display (6.6 kW)
Actual charging time: 10 hours and 41 minutes
Actual voltage and current input to 30-ampere AeroVironment EVSE when charging was first started: 244.2 V and 27.6 A
60-minute peak demand during charging session: 6751.2 watts (6.7512 kW)
Actual charging energy (measured at input to EVSE): 65.95 kWh
Actual wall to wheels efficiency: 204.4/65.95=3.099 mi/kWh

LEAF Spy information just before Shutdown:
AHr=173.40
SOH=98.30%
Hx=102.94%
289.27 V and 8.21 A
1 QC and 13 L1/L2
min/avg/max=2.843 3.013 3.076 volts (233 mV delta)
Temp F=114.8 117.4 118.7 (4.6 degrees delta)
SOC=0.2%

LEAF Spy information when car started a little more than 2 hours after charging complete:
399.51 V 1.22 A
1 QC and 14 L1/L2
4.155 4.161 4.183 volts (28 mV delta)
104.4 106.9 107.2 degrees F (3.6 degrees delta)
SOC=94.1%
"Gids"=721

Dashboard information:
262 miles left (GOM or DTE)
100% SOC

I was surprised that there was no visible or audible very low battery warning and that low battery warning happened with much more energy remaining than on previous LEAFs. It was also strange to see the GOM (Nissan calls it "Distance to Empty" or DTE) go to -- only a short distance after LBW. The energy use display on the navigation screen has a remaining driving distance display which counts down and seems to be reasonably accurate, but it still showed 1 mile remaining just before shutdown.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL+ purchased 8/10/2019

DougWantsALeaf
Posts: 912
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Leaf Plus VLB or Turtle

Wed Sep 11, 2019 5:59 pm

Great report!

Thank you for all of the detail. Glad to know you can drive the car down to almost 1 gid. There was rumor that the last 20-30 Gids were not usable, which does not seem to be true.

Also good to know that VLB does not audible warn the driver. Makes we wonder if it had hit VLB when I had 1% on the dash and just under 5KW remaining on Leafspy.

What’s crazy is that at Low battery you have as much juice left as a 50% or more charge on my 13 Leaf.

Noticed you SOC after charge was only 94%. That happened to me after a full level 2 charge post a major run (242 miles). Wonder why it didn’t fill the last few percent or whether if you plugged it in again whether it would add the last 3kw.

When was your SL+ manufactured?
2019 SV Plus Silver
2013 Leaf SV
100 Mile Club Member (Number 87)
Max distance on 13 Leaf: 120 miles
Max distance on 19 Leaf: 242 Highway 4.5 miles/kWh (4.9 KWh remaining)

cwerdna
Posts: 9674
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Leaf Plus VLB or Turtle

Wed Sep 11, 2019 7:06 pm

DougWantsALeaf wrote:
Wed Sep 11, 2019 5:59 pm
Also good to know that VLB does not audible warn the driver. Makes we wonder if it had hit VLB when I had 1% on the dash and just under 5KW remaining on Leafspy.
Do you mean 5 kWh? I don't bother with "kWh" readings on Leaf Spy, if they're calculated from the 77.5 watt-hours per gid (default setting). Working backwards 5000 Wh / 77.5 Wh/gid = ~64.5 gids. Was that about how many gids you had at the time?

'19 Bolt Premier
'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

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

DaveinOlyWA
Posts: 14107
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Leaf Plus VLB or Turtle

Wed Sep 11, 2019 7:29 pm

DougWantsALeaf wrote:
Thu Sep 05, 2019 5:15 am
Board

Has anyone taken their Leaf Plus down to VLB or Turtle mode and have a Leafspy reading to go with it?

I have gone well into LB (with dash at 1% for a while), but haven’t had the patience to take it to VLB.
yes, what do you want to know?
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

DaveinOlyWA
Posts: 14107
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Leaf Plus VLB or Turtle

Wed Sep 11, 2019 7:40 pm

DougWantsALeaf wrote:
Wed Sep 11, 2019 5:59 pm
Great report!

Thank you for all of the detail. Glad to know you can drive the car down to almost 1 gid. There was rumor that the last 20-30 Gids were not usable, which does not seem to be true.

Also good to know that VLB does not audible warn the driver. Makes we wonder if it had hit VLB when I had 1% on the dash and just under 5KW remaining on Leafspy.

What’s crazy is that at Low battery you have as much juice left as a 50% or more charge on my 13 Leaf.

Noticed you SOC after charge was only 94%. That happened to me after a full level 2 charge post a major run (242 miles). Wonder why it didn’t fill the last few percent or whether if you plugged it in again whether it would add the last 3kw.

When was your SL+ manufactured?
There is an insignificant amount of power shown by LEAF Spy that is not usable since LEAF Spy displays real values which is why you never see 100% SOC. How much is unusable is dependent on the rate at which you use up those electrons at the bottom and pack balance. Turtle and shutdown are triggered by low voltage levels. Only ONE cell has to hit that level to trigger the warnings. The likelihood you will make it to one GID is....ZERO. But I am guessing you will have to see for yourself. Bring a jump box with you because going that far will likely kill your 12 volt as well. It has to work to receive a charge.

I have seen people make to 5. I have seen people getting towed at 7. In my 2013, I was getting home 3-4 days a week with GID under 10. It was like clockwork. W/O LEAF Spy, I would never have tried it but LEAF Spy literally adds 15 miles to your range.

Here is a few LEAF Spy shots. On the cell screen, you can see how wildly out of balance the pack becomes when near empty. This is what you have to negotiate to get into the last few GIDs.

https://daveinolywa.blogspot.com/2018/0 ... -leaf.html
Last edited by DaveinOlyWA on Thu Sep 12, 2019 7:07 am, edited 1 time in total.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

GerryAZ
Gold Member
Posts: 2248
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Leaf Plus VLB or Turtle

Wed Sep 11, 2019 7:57 pm

Since I used most of the capacity of the battery on a daily basis in both the 2011 and 2015 and then fully charged overnight, those batteries were generally well balanced. Turtle always happened at 5 Gids and shutdown always happened at 4 Gids. The 2011 would maybe go 1/4 mile after Turtle, but the 2015 went over 1 mile a few times recently in order to reach the nearest charging stations.

As you can see, the voltage difference between cells near shutdown was only 233 mV so the battery in the 2019 is also well balanced. I generally charge the 2019 every 2 or 3 days so that I am not topping off the battery every day. Again, I nearly always charge to 100%. The manufacture date was 07/2019 and I drove it off the dealer lot on August 10.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL+ purchased 8/10/2019

DougWantsALeaf
Posts: 912
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Leaf Plus VLB or Turtle

Fri Sep 20, 2019 10:20 pm

I just completed another north side Chicago to Iowa city run. This time much faster than the first time when I just got the car knowing I left quite a buffer last time. We kept at 70 for most of the highway time between aurora and Iowa city (staying around other traffic). I left at 100% and 755 Gids and arrived at 4% on dash/12.4 % Leafspy 94 Gids and 7.4 kWh remaining. Low battery went off at 108 Gids and 8.8 kWh remaining and 6% on dash. Efficiency 4.1 miles per kilowatt. 227 miles driven. So with reserve that’s around 250 range which is about right.
2019 SV Plus Silver
2013 Leaf SV
100 Mile Club Member (Number 87)
Max distance on 13 Leaf: 120 miles
Max distance on 19 Leaf: 242 Highway 4.5 miles/kWh (4.9 KWh remaining)

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