If you do 8 miles with the second, you should do the same or more with the first. The second values 7,5% of SoC, the first values 8% of SoC. So, your i-MiEV is not charging to 100% SoC, maybe only 96% (i know, in a full charge SoC should be always 100%, but i-MiEV have a strange way to get its SoC). Maybe this results of unbalanced cells. Some i-MiEVs that stand still for many months became unbalanced. Charging to 100%, every day, will fix it, after some time (Months). The second hypothesis, not so probable, is that it has 4% degradation, and don't charges 17,4 kWh from 5,5% to 100%. Only 16,8 and don't charge the last 0,6 kWh, so it will not show 100% but 96%. But if it has so little mileage, this second is very improbable.
"the third disappears when I turn the car back on after sitting an hour (this is after driving about 8 miles for the first two bars)."- It happens to me all the time. I have a explanation for this, i-MiEV uses battery temperature to calculate his SoC. After charging and driving, battery temperature will rise, and after sitting an hour it recalculates his SoC, taking 5% of SoC - 1 bar (third bar values 5%). My i-MiEV, sometimes, even give me 5% SoC extra, after sitting one hour, i think it happens when temperature of the batteries go lower. This procedure (adding or taking 5% SoC) only happens when the car stand still for sometime. Happens to me all the time.
I know, very strange things i´m telling you, some don't make sense. But, remember, i'm the guy
from the future, and i've seen things that you can even imagine. If i was the canary, i shouldn´t be here anymore.
Last edited by Malm
on Mon Nov 18, 2013 11:46 am, edited 4 times in total.
Riding an i-Miev since 4/2011 in Portugal, 100.000 kms.