BuckMkII
Posts: 194
Joined: Sat May 06, 2017 8:04 am
Location: Seattle

Mismatch between dashboard % and LeafSpy

Tue Oct 10, 2017 7:11 am

When I turned on my car this AM, dashboard said 23% then almost immediately clicked down to 22%. LeafSpy said 30.3% then clicked to 30.2%. Who to believe? Why such a big mismatch? I've seen mismatches sometimes, but not always. This is the worst I've noticed.
2013 SV no QC, built July 2013
car grew up in San Jose CA, purchased 5/31/17 in Seattle
on 6/16/17: AHr = 56.4; SOH = 86%; Hx = 84.3; ODO = 39,250
bar 12 lost 8/21/17
on 2/2/18: AHr = 56.1; SOH = 85.7%; Hx = 81.5; ODO = 44,444

cwerdna
Posts: 7680
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Mismatch between dashboard % and LeafSpy

Tue Oct 10, 2017 11:47 am

The dash display % SoC was developed before and independently of Leaf Spy. It appeared as a (much requested) new feature beginning on model year 2013 Leafs. '11 and '12 Leafs didn't have it.

If viewtopic.php?f=44&t=14285 is correct w/the approx start date of the 1st public version of Leaf Spy, that wasn't until the '13 Leaf had been on the market for many months. I have no idea if Turbo3 was able to retrieve the value used by the dash display and whether he renders it anywhere in the UI. I personally don't care about much about any sort of % SoC or % gid values in Leaf Spy as I don't know the denominator.
Last edited by cwerdna on Tue Oct 10, 2017 2:45 pm, edited 1 time in total.

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

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

jjeff
Posts: 1633
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Mismatch between dashboard % and LeafSpy

Tue Oct 10, 2017 2:41 pm

BuckMkII wrote:When I turned on my car this AM, dashboard said 23% then almost immediately clicked down to 22%. LeafSpy said 30.3% then clicked to 30.2%. Who to believe? Why such a big mismatch? I've seen mismatches sometimes, but not always. This is the worst I've noticed.

Just a WAG but is your car missing a bar or two? I see the same thing, worse with my '12(missing 3 bars) vs full bars on my '13. I kind of thought LeafSpy might be reading % of remaining battery capacity vs the car which could be reading % of a new battery?? As the battery degrades the car won't be able to show 100% even for a fully charged battery because it's going off 100% of a new full capacity battery.......just guessing.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

powersurge
Posts: 910
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Mismatch between dashboard % and LeafSpy

Wed Oct 11, 2017 2:24 am

I swear, Leafspy has caused more problems for people since the writer tried to help people by creating the app.

People love to complain about their car's voltage, cells, capacity, and even the reported air pressure in their tires. Its like people cant handle getting a little information. They get obsessed with calculating, proving, and comparing the information on Leafspy and other things.

Leafspy is a great little program that was made to give use more information than the stupid GOM. Used it to get a general idea of your car's functioning, and just drive the car.

cwerdna
Posts: 7680
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Mismatch between dashboard % and LeafSpy

Wed Oct 11, 2017 2:49 am

To expand on what I said earlier, since '11 and '12 Leafs had such crap instrumentation due to lack of % SoC display, people were using gids as a proxy for % SoC. It's far more granular than the 12 fuel bars (not the capacity bars).

New Leafs started at around ~279 to 281 gids on a full charge on a new battery: viewtopic.php?p=251341#p251341. There was this thread: viewtopic.php?t=5582.

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

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

BuckMkII
Posts: 194
Joined: Sat May 06, 2017 8:04 am
Location: Seattle

Re: Mismatch between dashboard % and LeafSpy

Thu Oct 19, 2017 12:00 pm

powersurge wrote:I swear, Leafspy has caused more problems for people since the writer tried to help people by creating the app.

People love to complain about their car's voltage, cells, capacity, and even the reported air pressure in their tires. Its like people cant handle getting a little information. They get obsessed with calculating, proving, and comparing the information on Leafspy and other things.

Leafspy is a great little program that was made to give use more information than the stupid GOM. Used it to get a general idea of your car's functioning, and just drive the car.

What the Terminator said to the guy who asked if he had a dead cat in there.

If a thread doesn't interest you, just saying nothing is always an option.
2013 SV no QC, built July 2013
car grew up in San Jose CA, purchased 5/31/17 in Seattle
on 6/16/17: AHr = 56.4; SOH = 86%; Hx = 84.3; ODO = 39,250
bar 12 lost 8/21/17
on 2/2/18: AHr = 56.1; SOH = 85.7%; Hx = 81.5; ODO = 44,444

dhanson865
Moderator
Posts: 1492
Joined: Wed May 25, 2011 7:12 am
Leaf Number: 16156
Location: Tennessee

Re: Mismatch between dashboard % and LeafSpy

Thu Oct 19, 2017 9:30 pm

BuckMkII wrote:When I turned on my car this AM, dashboard said 23% then almost immediately clicked down to 22%. LeafSpy said 30.3% then clicked to 30.2%. Who to believe? Why such a big mismatch? I've seen mismatches sometimes, but not always. This is the worst I've noticed.


Nissan grades on a curve at the bottom and top of the pack. Get your car to 50% SOC ((dash soc% + leafspy SOC%)/2)=50% and see how much difference there is between the two. Whatever that difference is at the middle of the pack expect Nissan to round up drastically at the top of the pack and round down drastically at the bottom.

The purpose is to get you to avoid using the car over or undercharged.
Blue 2012 Leaf 195/65/15 tires, 15" Rims
Silver 2012 Leaf 16" stock wheels
wiki/index.php?title=Real_World_Battery_Capacity_Loss
(efficiency 3.x KW vs 6.x KW)
please join Truedelta.com and input your repairs.

BuckMkII
Posts: 194
Joined: Sat May 06, 2017 8:04 am
Location: Seattle

Re: Mismatch between dashboard % and LeafSpy

Fri Oct 20, 2017 7:54 am

dhanson865 wrote:Nissan grades on a curve at the bottom and top of the pack. Get your car to 50% SOC ((dash soc% + leafspy SOC%)/2)=50% and see how much difference there is between the two. Whatever that difference is at the middle of the pack expect Nissan to round up drastically at the top of the pack and round down drastically at the bottom.

The purpose is to get you to avoid using the car over or undercharged.

When the dash says 100%, LeafSpy is around 97% and a couple of tenths. I always resent the five or so "missing" GIDs, but for my purposes, this is inconsequential. We only use 20 to 50% of the capacity in a typical day. I asked this question mainly to see if there was any interesting lore about how LeafSpy works.
2013 SV no QC, built July 2013
car grew up in San Jose CA, purchased 5/31/17 in Seattle
on 6/16/17: AHr = 56.4; SOH = 86%; Hx = 84.3; ODO = 39,250
bar 12 lost 8/21/17
on 2/2/18: AHr = 56.1; SOH = 85.7%; Hx = 81.5; ODO = 44,444

bongo2
Posts: 34
Joined: Mon Jan 23, 2017 9:15 am
Delivery Date: 23 Jan 2017

Re: Mismatch between dashboard % and LeafSpy

Wed Dec 27, 2017 6:13 am

Here's what I've observed at cool temperatures (from 40-60f). Leafspy starts out a little bit under 100%, then crosses at about 80% and ends up higher at the low end.

Dash Leafspy
100 97
90 88
80 80
70 72
60 63
50 55
40 46
30 38
20 29

At the low end I don't have very much data, but I think that at warm temperatures they start to converge again. The interesting thing is at low and high temperatures the bottom end changes quite a bit. When it was 80 this summer the dash and leafspy were pretty similar. The last few days it's been well below zero and I've noticed that the difference at the low end is MUCH larger. Last night it was about -3 and when the dash said 24 Leafspy said 42.
Minneapolis, MN
2015 S; 25k miles; Mfd 12-2014; 12 bars
Dostar Duosida EVSE

SageBrush
Posts: 2041
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Mismatch between dashboard % and LeafSpy

Wed Dec 27, 2017 6:55 am

Thanks, @bongo.
Very useful
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles

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