I have found the bare minimum for my own comfort to be 78 degrees auto, and with the driver side, and both of the center registers point to me, and the passenger side closed. (I fly solo 90% of the time). Is this okay for the HV battery when it is 100+ out? I really do not want to run an ice chest on wheels.
From what I have read, you'd best point one of your registers toward the fan intake in the back seat.
I run my AC at 72 and monitor cabin temp and battery fan inlet temps. In my 26 mile commute the cabin temp gets down to about 77-78 and the battery inlet temp is typically a couple of degrees above cabin. So at 78 AC setpoint the battery inlet temp is going to be in the high 80 to low 90 range.
Closing off some vents seems counter-productive to me. The more air flowing - the better the cabin cools, and that means less load on the compressor and blower. So not only does it result in a hotter cabin it also increases the electrical load and makes a hotter battery.
I closed the passenger side vent to direct more airflow towards me. This is the only way to get enough air flow after the fan drops to one bar. Alternately I can set the ac to the low 70s or manaully dial up the fan speed. I figure why cool the side no one is sitting in? SAMSUNG-SGH-I747 ? 2
