I have tried to look for this state of charge(SOC) and all can find is the attached screenshot of on my cell phone.
https://photos.app.goo.gl/k6JwQNUz4P8nPpDj6 Am I in the right place with above screenshot? Is this the page showing SOC? if I am not mistaken and SOC is the much more reliable info source, then, shouldn't the energy added be the advertised 14.4kwh rather than 12kwh?
14.4kWh is the full capacity spec of the traction battery, but Ford and almost all EV makers restrict the large traction battery to be fully charged (100%) or completely drained (0%) to protect the battery. As you may know, the rechargeable battery suffers from premature degradation of capacity if it is allowed to charge to 100% and drain to 0% repeatedly. The set safety "buffer" is built-in by the program to allow the owner to be charged only up to ~90% of the the battery. And when the the EV range is down 0 miles, it does not mean the battery is drained to zero. It still has ~18% of SOC left to operate in HV mode and car will not let the battery to reach the true 0%.
So true (absolute) SOC of the battery is somewhere around 90% when the car says 100% and EV range depleted battery is actually at ~18% SOC when the car cays 0%. And this usable battery capacity takes somewhere around 10kWh to 13kWh to fully charge. The reason the kWh is not always constant is that the car's Battery Management System will regulate amount of energy that goes into the battery and also uses energy to heat or cool battery during any charging session such that when it is very cold (below freezing) or extremely hot they sometimes limit the capacity.
Here is another data I keep on my 22 PHEV. The each data point is amount of kWh used from the wall (measured by the Watt energy meter) needed to fully charge the traction battery. As you an see, this varied from all the way up in 14kWh initially to low end of 10kWh. The average is around 12kWh, but this has been slowly decreasing due to normal battery degradation over two years. BTW, the data is measured at wall, so that is the actual kWh consumed and I paid for the electricity. The number reported by the Ford App is consistently lower by about 7%. This is mainly due to conversion loss. I don't use preheating cabin on my car, so ~93% of what I use at wall ends up in the traction battery.
BTW, the only place I see SOC % displayed in the car is under Charge Setting in Sync display. Your Sync4 may show it in different place. It is inconvenient as I have to find the page under menu each time I start the car, but I keep my screen to show the SOC most of the time when driving on EV.
The difference between these two figures are about 30%, which translates to 40x 1.3 = 52km which is reasonably within spec given environment temp in Niagara Falls which has hovered between 10 degrees Celsius (50f) and 24 deg celcious (75f) in past 3 weeks.
The advertised spec of 37 mils (59km) is not a theoretical number from the full capacity. It is the actual miles the car run under EPA specified test condition. So, you can not add more miles from the the part of the battery that is never used for EV driving. It is very similar to advertised fuel efficiency (mpg in the US) in that it is not a guaranteed number. Some people will not get that while others will beat it. In general, you will need a full year to know your true average EV range. From now on until next spring, where you live will see lower and decreasing EV range that will not likely to achieve 37 mils (59km). My shortest EV range (this is without towing) was 15.6 miles in winter and the longest record was 54.5 miles in summer. But overall average is currently at 37.2 miles.
If my above "light-duty" analysis is reasonable then the battery is short of charging to its fullest capacity by about 30%.
It is more like ~11 kWh actual energy that goes into the battery on average when fully charged from 0% to 100% on dash or app display. So, 11/14.4=0.76 or 76% is the usable battery capacity for EV driving.
BTW where can I find and print the Full Chart EV range" you provided for my vehickle? Thank you
You won't find the chart in your car or Ford App. I keep those data in Excel spreadsheet. And each data point is from my daily recording of the miles run on EV mode and percentage of SOC used for that EV distance driven. All manually curated. For accurately recording actual EV miles driven and used SOC%, I do not include the day when I drove the car in HV mode with ICE on. The data represents purely EV Now mode without any distance driven by ICE. There is no easy data access for this information from the car or the app that I know of.
