Efficiency Has TANKED

[Rivdog]

Either way, I guess I wouldn’t have expected such a large drop with the heat on low setting and the temp not too very cold. In a few weeks it will be 20 degrees cooler.

so we should expect cold temp ranges of 190-200 miles? Yikes.

That’s about what I am expecting based on my prior EV’s.

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[Rivdog]

We had many threads on the Mach E forum every winter about new owners worrying that Ford somehow put the wrong battery in their vehicles since efficiency dropped so much. Was a nice tradition.

 

[mikehmb]

Was a nice tradition.

 

[Dark-Fx]

We had many threads on the Mach E forum every winter about new owners worrying that Ford somehow put the wrong battery in their vehicles since efficiency dropped so much. Was a nice tradition.

Somehow my battery capacity gets inflated when I tow.

 

[cohall]

Cold weather + short drive = Terrible efficiency

Heating cabin, seats, steering wheel etc. have a nominal impact on my efficiency. I keep myself nice and comphy.

 

[Rivdog]

Somehow my battery capacity gets inflated when I tow.

You got one of those range extender hitches? Heard Tesla is gonna make them for the Cybertruck.

 

[OverEasyGoing]

It’s simple really. Your Rivian hates the Eagles.

I’ve seen similar lately too. It’s not just you. I can’t find a consistent pattern (weather, battery temp, heat/ac use, speed, etc.). Sometimes when they’re all theoretically favorable I still get crap efficiency. Other times it’s the inverse. I solved it by showing the map instead of the efficiency screen. Now I don’t worry.

 

[R1Tom]

I love all these posts. Makes me glad that I enjoy the cold and the only time I run the heat is to defog the windshield. I always get asked, doesn't your efficiency suck in the winter? Nope, maybe a 5-10% hit max.

I wish they'd come up with a way to heat the windshield without the forced air.

I am opposite....I run my heated wheel constant, seats high constant, and crank heat. Not a fan of cold, unless skiing, snowshoeing, hiking, etc......and I have spent my whole life in it. My tolerance has reduced with age....But I also don't care what my vehicle consumption is. Whatever it is is alot less than a Raptor R or TRX.

 

[COTrails]

I do something similar, where I will set the max current draw to something that gets me close to my target % at my planned time of departure. Usually for when I need 100% at time of departure, but no harm in doing it to keep current draw down, either.

I've also been toying with limiting current to save on the I^2 losses---my home ChargePoint cable is noticeably hotter after a 48A charge than a 32A. But then there are the time-based losses due to vehicle systems active throughout any charging event, and I'm not sure I'm really saving anything by charging slower and longer!

 

[JGard18]

I'm still laughing at the interior temp being set to 75. Do you always just drive around in a tank top and flip flops, time of year be damned?

 

[R1Tom]

I'm still laughing at the interior temp being set to 75. Do you always just drive around in a tank top and flip flops, time of year be damned?

I am more of a sweatshirt and shorts with a pair of athletic shoes kinda person. I stop flip flops and tank tops at about 50 degF.

 

[Tejkalra]

This is not how it works. I have work truck. So I drive my R1T on Saturday. Sitting in driveway for week in cold and heat and all. Then I drive on weekend for like 50-70 miles. Always get worse mileage. Went on couple of 400 mile plus trips. Mileage is better. I won't recommend mileage for short trips. Sometimes slow speed driving is worst too.

 

[Riviot]

12 inches of fresh powder

I wish they'd come up with a way to heat the windshield without the forced air.

I miss my Land Rover Disco... 23 years old and still has the original heated windshield with the filaments, and only a single half-inch crack that never spread! F U Fuyao!

 

[Riv303]

Quite the opposite over here! Great stats lately:

 

[lefkonj]

When I jumped in my cold (Boston cold) R1S that was outside overnight, I saw the efficiency drop but once the vehicle warmed up and the cabin temp was comfy it recovered and was fine. Didn't impact our 250 mile drive home at all.

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