GerryAZ said:Integer value from CAN bus=730 (represents HV BATT LEVEL)
Is this the value shown as GIDs in LSPro? If it is not GIDs then where would I find this integer value? Thank you
GerryAZ said:Integer value from CAN bus=730 (represents HV BATT LEVEL)
knightmb said:Looks like 61 kWh? (175.48 ah x 350.5 v) :shock:
Is all the real capacity unlocked now?
Voltage drops with SOC, so you can't just multiply V*Ahr to get kWh.OldManCan said:This is the recent picture for me when I charged to 100%. If AHr x V is to be believed then I'm getting (174.88 x 402.94 / 1000) 70.50 kWh which can't be true. Do I need to tweak anything in my LSPro settings?
oxothuk said:Voltage drops with SOC, so you can't just multiply V*Ahr to get kWh.
oxothuk said:Voltage drops with SOC, so you can't just multiply V*Ahr to get kWh.OldManCan said:This is the recent picture for me when I charged to 100%. If AHr x V is to be believed then I'm getting (174.88 x 402.94 / 1000) 70.50 kWh which can't be true. Do I need to tweak anything in my LSPro settings?
watchdoc said:Probably a dumb question but how often do you guys record your leafspy results and how often do you balance your pack? I'm trying to come up with a routine.
watchdoc said:Probably a dumb question but how often do you guys record your leafspy results and how often do you balance your pack? I'm trying to come up with a routine.
watchdoc said:Probably a dumb question but how often do you guys record your leafspy results and how often do you balance your pack? I'm trying to come up with a routine.
danrjones said:watchdoc said:Probably a dumb question but how often do you guys record your leafspy results and how often do you balance your pack? I'm trying to come up with a routine.
I used to capture leafspy weekly but now just once maybe twice per month or when I'm expecting a three month adjustment.
I never balance the pack. Not purposefully anyway. Nothing in the manual about doing so, I don't think. I'll do a full charge maybe twice a year because I need it.
GerryAZ said:I will type it one more time because there is a lot of discussion in this thread comparing battery capacity in kWh (as indicated by Leaf Spy). Those kWh values depend upon the constant that is chosen on the Leaf Spy settings page. I believe the data from the integer value on the CAN bus is called HV BATT LEVEL in the service manuals I have for 2011 and 2015. The integer value from the CAN bus correlates with Wh or kWh with suitable multipliers. It is wrong to suggest that the integer value correlates with Ahr because voltage must be taken into account to compare ampere-hours with watt-hours and the battery voltage varies from full charge to discharge. The HV BATT LEVEL from the CAN bus is not perfectly linear, but it provides a good reference for remaining useable energy.
In regard to the screen images posted by Watchdoc: My 2015 had 1 QC and 4 L1/L2 charges when I picked it up. My 2019 had 1 QC and 6 L1/L2 charges when I picked it up. I did not have a way to read CAN bus information when I purchased the 2011. If your car was at a dealer for a while, they probably plugged it in a few times. Initial readings at 64 miles for my 2019 were:
AHr=175.15
SOH=99.29%
Hx=98.19%
V=376.50
After first full charge at 189 miles:
AHr=174.99
SOH=99.20%
Hx=98.95%
V=399.44
QC=1
L1/L2=7
Integer value from CAN bus=730 (represents HV BATT LEVEL)
730*65=47.45 kWh
730*75=54.75 kWh
730*77.5=56.575 kWh
730*80=58.40 kWh
This shows how much difference the multiplier chosen in Leaf Spy settings can make to the displayed kWh.
Yes, the integer value is what is shown as GIDs in Leaf Spy Pro. There are some forum users who don't like the term "GID" because it is not an official reference from Nissan.OldManCan said:GerryAZ said:Integer value from CAN bus=730 (represents HV BATT LEVEL)
Is this the value shown as GIDs in LSPro? If it is not GIDs then where would I find this integer value? Thank you
GerryAZ said:Yes, the integer value is what is shown as GIDs in Leaf Spy Pro. There are some forum users who don't like the term GID because it is not an official reference from Nissan.OldManCan said:GerryAZ said:Integer value from CAN bus=730 (represents HV BATT LEVEL)
Is this the value shown as GIDs in LSPro? If it is not GIDs then where would I find this integer value? Thank you
In answer to Knightmb's question: I believe the latest version of Leaf Spy Pro has 77.5 as the default multiplier value.
GerryAZ said:Ampere-hours is a good measurement for tracking long-term capacity of a battery, but it gives no information regarding level of charge or amount of energy available to use.
lorenfb said:Actually, using Ahr per mile to estimate range can be useful too. My '13 Leaf has a LeafDD gauge which displays the battery's remaining Ahrs.
Using my typical efficiency of 5 mi/kWh and converting to mi/Ahr (assuming a battery of 400 volts), I can estimate my remaining range quickly
and reliably by using an efficiency of about 2 mi/Ahr.
fester said:Didn't know how to attach an image, but I did at trickle charge to full charge today (from 95% earlier charge) prior to some incoming snow, and since there were questions concerning what the Leaf charge circuit was doing in the last 5%. I monitor my household power with a Brultech GEM and Dashbox, so I just watched the power input to the trickle charger. Basically I saw an avg of 1450 watts to the charger for about two hours, then tapered down to about 600 watts during the next half hour. The charge circuit then waited about 5 minutes then delivered 3 more 15 minutes charges at around 600 watts. With around 5 min wait between these last 3. Your results may vary but that was with my 2022 SV+.
I still have questions about how frequently my 12v is charged, but I think in the next week or so, I'll attach a voltage data logger to the 12v and leave it attached for a week or so. Should give me a good general idea of how the Leaf is handling the 12v. I'll post afterwards...
Turn the windshield wipers on will change the charge voltage to 14.1 as long as the wipers are on.
Enter your email address to join: