Hello all, noticed something interesting. Was driving in the morning. Heat was in recirculating mode and cabin was warmed up. Coolant temperature was high (160 F). Car was in low speed (5-10 mph because of traffic). Battery level was high (67.8% 7 pips). But gas engine was still running non-stop. Checked battery temperature. It was 28 F. Switched from recirculating to fresh air mode. The battery temp raised from 28 F to around above 32 F rather quickly. Then the gas engine stopped and car started to run on full EV mode. --------------------------------------------------------------------------------- Did not know the fresh air mode will have such a prominent effect on battery temp... Will use more fresh air mode in summer when the AC is blasting. Fun!
That is because the cabin will be "slightly" over pressurized and the extra air which is "warmed up" would exit through the battery cooling channel (even though no battery cooling fans running). This is similar (but opposite) effect as running A/C in the summer as opposed to lowering the windows the slightly cooller air will be sucked up by the battery fans and effect the battery temp.... Sorry no magic
