GerryAZ wrote: DaveinOlyWA wrote:
GerryAZ wrote:80 is the value listed in the 2011 service manual, but I have not checked the later manuals. The LEAF onboard chargers operate at essentially 1.0 power factor. I have checked both 3.3 kW in 2011 and 6 kW in 2015 on 120, 208, and 240 volts nominal and was surprised how close they run to unity PF. L2 charging efficiency using the same 30-ampere EVSE is noticeably higher with the 6 kW onboard charger in the 2015 compared to the 3.3 kW unit in the 2011 due to reduced charging time (reduced overhead losses).
Nissan acknowledging the GID is news to me... Either way, it does not change the fact that LEAF Spy shows 29.0 kwh available with GID=80 but only 28.1 when GID=77.5
I apologize--I could not find a direct reference to 80 Wh per count for the number representing stored watt-hours that we on the forum call GIDs. There are old threads where this is discussed and 80 Wh for each count is presented as a Nissan value. Dividing the stored energy in the battery at low battery warning stated in the service manual by the number of GIDs consistently displayed at LBW yields a number very close to 80 Wh. Obviously, Nissan does not acknowledge the term GID because that is a term created on the forum.
Well I was here for all that and never saw any kind of acknowledgment from Nissan concerning the figure but it would have been easy to miss, especially here.
Now, Gary Giddings and others when they initially collected the data and the "GIDmeter" was developed, the GID was assigned a value of 80 watt hours but as time went on, it became obvious that number didn't work in all cases and I have no recollections of the details nor did I participate in the discussions. I "think" part of the reason for the number was based on a 24.0 kwh pack capacity.
Later, LEAF Spy arrived and originally started at 80 watt hours and due to the extra level of data supplied by LEAF Spy, several determined 77.5 watt hours to be a more applicable number. This is also when we started to notice pack capacity was drifting upwards.
As far as who got what, when and whatever? I don't care. The variety of readings collected from day to day (yes, I record LEAF Spy readings EVERY day) tells me it doesn't really matter what the numbers say as long as the relationship between the numbers stay the same. So here goes
GID=80, kwh remaining = 29.0
GID = 75, kwh = 27.2
As you can see, for me to get as low as some people have recorded I would have to have a radical change in the relationship used within LEAF Spy. So therefore, I will stay at what I have been using for the last 5 years which is 77.5
2011 LEAF measured 281 peak GIDs using GIDmeter. (LEAF Spy use started month 28 of 35 month lease)
2013 measured 284 GIDs, 22.7 kwh, 67.36 ahr
2016 S30; 363 GIDs, 28.1 kwh, 82.34 ahr