DaveinOlyWA
Posts: 15067
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: The 40KWH Battery Topic

Thu Oct 15, 2020 6:53 pm

goldbrick wrote:
Thu Oct 15, 2020 6:38 pm
Is a GID more or less an (average) Ahr * V across the V*I curve of the battery? It seems like an A at 100% SOC would generate more power than an A at lower SOC% due to the voltage drop as the battery discharges. I ssumed a GID took that into account but that was just a guess.
No one knows. GID is a value that moves in lock sync with SOC. A bit of experimentation determined the value to be about 77½ wh more or less. "GID" was a term coined because Gary Giddings was one of the first to decode the CANbus data which led to GIDmeter the precusor to LEAF Spy Pro.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 13,705 mi, 93.41% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

lorenfb
Posts: 2467
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: The 40KWH Battery Topic

Fri Oct 16, 2020 8:26 pm

DaveinOlyWA wrote:
Thu Oct 15, 2020 6:53 pm
goldbrick wrote:
Thu Oct 15, 2020 6:38 pm
Is a GID more or less an (average) Ahr * V across the V*I curve of the battery? It seems like an A at 100% SOC would generate more power than an A at lower SOC% due to the voltage drop as the battery discharges. I ssumed a GID took that into account but that was just a guess.
No one knows. GID is a value that moves in lock sync with SOC.
Yes but, SOC just measures the percentage of available battery energy, as it's periodically consumed. Whereas, the GID value
measures the maximum battery energy available periodically, and but more importantly what the available energy is at 100% SOC
as battery degradation occurs.
#1 Leaf SL MY 9/13: 76K miles, 47 Ahrs, 5.0 miles/kWh (average), Hx=70, SOH=73, L2 - 100% > 1000, temp < 95F, (DOD) > 20 Ahrs
#2 Leaf SL MY 12/18: 10.3K miles, SOH 109Ahrs/115Ahrs, 5.2 miles/kWh (average), DOD > 20%, temp < 105F

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