SageBrush wrote: ↑
Tue Dec 29, 2020 5:14 pm
OP -- some clarity would help
Are you saying that the charging power reported by LeafSpy was ~ 1/2 the power reported by the charging station and the LEAF **at the same time** ?
I think that Lefty is correct and you experienced rapidgate --- but in this case from too COLD a battery. Your experience may also have included other heating power draws. I think LeafSpy also reports other heating draws under the ACC row.
I arrived at the charger at around 28-31% SOC IIRC
The Charger was reporting 360V & 100A charge rate aka 36kW
The Leaf Dash was reporting 36kW charge rate & the corresponding charge time to 50%/75% was like 15min & 25min or something like that.
after about 20min the Dash SOC was showing in the 40%ish SOC so I knew that something was off & this time I had my iPad which is what I use LS Pro so I plugged in my OBD-II dongle and at this point the Charger & Dash was reporting a 28kW charge rate & LeafSpy was showing 14,xxx watts going into the battery & 100ish watts for accessories and intermittent 200-400watts for the climate system.
At this point in the charge session the battery temp sensors were in the 70'sF in LS Pro & the dash showed the temp gauge to be about 35-45% from L-R sioi it really should NOT be too cold & historically the battery after 20+ min of QC would absolutely be above 50% so that leads me to believe that the 1/2 rated charging had occurred during the entire charge.
The literal doubling of time to reach xx SOC reinforces that belief. The annoying part is the charge algorithm was tapering the charge rate based on the SOC% but with only 1/2 the actual current the cells were not heating up as fast although ironically if I have more time this is a "better" way to "fast" charge since it's less stressful to the pack