Robert wrote: ↑Wed Nov 23, 2022 2:08 pm
the resistor don t burn anymore (i don't know why) but the charging don t stop when battery is full
In fact I had no problems with charge ending.
I never paid attention on how charges were ending. It was charge and forget. But last summer, at the first charge with a resettable 1 A thermal circuit breaker and two resistors of 4.7 Ω and 50 W, I remained present with Canion during the whole charge process in case there would be any battery temperature runaway.
I got worried when SOC reached 100 % and that charge was still going on. "Batt Temp" on Canion was showing that temperature of Cell 64 kept increasing over 30°C (86°F) ... From this time my conclusion was to unplug when CaniOn was showing 100% SOC. I even made a curve, (Bars gone) or (100-SOC), versus time to know when to come to stop charging...
In autumn, temperatures were more fresh, with a battery cell 64 well below 30 °C. I took this opportunity to let the charge going on after reaching 100% SOC. Battery temperature was remaining flat, AC charge current was decreasing slowly like for a soft landing, then when AC current was around two Ampere, charge ended.... with DC current switching from a negative to a positive value below one ampere, (0.6 - 0.8 A), during ten minutes.
This was repeated again and again, charge was ending when AC current was around two Ampere. There was no problems with charge ending.
Below Canion's graphs till 0 fps, when the iOn shut off, graphs got frosen with no data transmission, (0 frame per second).
AC and DC currents start do decrease when battery reaches 361 V.
Charging Amps AC End of Charge
DC Amps History End of Charge