Pre-Heating while plugged in during extreme cold (2023 PHEV)

[jxc64]

If you can charge at Level 2 (240vAc) Most of your preheating can be done by the Charging Cable.

When I had my 2018 and 2022, I used to preheat while plugged in for about 15 minutes at temperatures between 0 to -10'C and for 1/2 hr for temps from -10 to as low as -30C and let car charge back up for 15 minutes or so before driving off. This would get me about 90% of the previously allowable Battery range.

I currently drive a 2024 PHEV with a Heat Pump. Temperatures have been about -5'C lately and when I preheat for 15 Minutes on Level 2, almost 100% of the power to operate the Heat Pump comes from the charge cable.

Prior to preheating, I now get a guessometer range of 74 kms. After stopping the preheat, the My Connect App shows 73 kms but after a few minutes, it goes back to 74 kms.

I will post elsewhere how much Heat I am getting out of the Heat Pump as the Ambient Temp starts to drop.

For thIs past week at -5'C outside temp, I am getting 30'C at the outlet vent on pure EV. Since my daily drive is only 10 minutes, I need to use heated seats as the interior heat barely reaches 10'C when I request 22'C.

This is on pure EV.

As the temperature drops I will need to use the Heat from the ICE, especially since once the outside Temperature drops below -15'C the Heat Pump will cease to operate.

More on this in another Thread which I have not started yet.

I have my new battery in. I am confused about the preheating. If I start my car in the morning in cold weather, the ICE comes on. Will this help preserve my battery. (I don't think I have a green ready light but I'll check) I know it will go to the EV battery after five or ten minutes (it hardly gets use in the cold). Is it ok to keep a trickle charger on the 12 V. Should I have the granny plug in during that or take it off. Alternate between the two? It's about 20F (-7C) today and going to be about 15-20F ( -10 to -7C) the next two days. Again any advice is welcome.

 

[PHEV07]

I have a 2018 PHEV. I usually have short trips. When the temperature drops into the 40s (sometimes 50s), it uses only ICE for most or all of my trips. And, it seems to only get about 18 mpg. What do you mean about preheating? (I do not have a remote for it). Would this get my entire trip on the battery. (I know nothing about cars!) I don't really care about the cabin being warm as we don't regularly get below 0 (F or C) temperatures. Thank you!

When I had my 2018 GT, never had to worry about charging the 12V Battery even when Temperatures dropped to -40'C.

As long as the Main Battery had any State of Charge, I could remote heat the car, albeit interior never got warm.

Once I started the Car, and saw Ready, the Main Battery charged the 12V Battery.