The autumn is here and the range has dropped

[jbfalaska]

Definitely tire pressure needs a refill to keep that magic sidewalls working for you. Also, I suspect the battery itself is getting a heat up from the car on cold days. Inside the car, there is an auto-on and off I've noticed which threw the heat on for me and the seats heating on for me when I didn't prefer it. I set to manual only. I have lost about 2 miles of range since it cooled off, but again, I can't tell if it's the battery getting some TMS support or not. Still far less expensive than gasoline - FAR LESS.

[Neromanceres]

As others have pointed out the auto defog is working on your car.

In the morning here we have had a couple of mornings as cold as 6C. My auto defog is turned off. I'm running in fan only. I have used the seat heaters. My range estimator is still at 70km when I get in my car and the energy used during the day has only changed very slightly (maybe 1km range difference).

So the 25C temperature change we have experienced here in the last 4 weeks has barely affected my battery range. Have kept an eye on my tire pressures and did notice that my tire pressures have droped about 20Kpa (3psi) in the cooler weather.

[AndY1]

Thank you for all your replies!

I already have had my tire pressure set a week ago for autumn temperatures. With the car sitting overnight, they are all at 280 in the dashboard menu.
I have my Ampera parked in the 2nd floor of the underground garage, where there's currently 18°C. I'm aware of the range loss due to cold, since I've been a Vectrix rider since 2008, but this wasn't the case of low tire pressure or heating. I had heating and AC disabled.
Since both the AC and the heating was ON at the same time, during my drive to work this morning, it must had been the auto defog feature, which obviously overrides the climate setting.
... and I live in the Central Europe.

Edit: In Europe, there's no way to precondition with the smart phone, since this feature is not set up in the Europe. Not that it would help, since the car is parked way under ground and there's no signal there. The only way to precondition is by remote.

Again, thank you all!

Edit2: This is my Ampera :-)

[rmay635703]

Althought my car is no volt by a longshot, I used to use a smallish 110v heater inside the car set by a manual timer to pop on about half an hour to an hour before I was going to leave, I also would heat the differential with a pad style heater. Cabin would get up to about 90 degrees even on cold days in short order, if you had the climate control to off you could likely drive to work with nothing fan or otherwise and still be comfortable 30 miles later because the car would think the cabin was already warm.

To be honest I have no idea why GM doesn't do a prius and have the insulated hot water bottle and a block and diff heater for cold months, its simply amazing at how much of a difference it makes (almost summer like range)