Unplanned cold weather trip

they have a habit of doing that, and i don't mean teslas

 

cold soaked pack, sub freezing temps and headwinds are a triple threat to EV range and pack health.

It's a shame you have to bump charge level up to 90% all winter, just in case. But I suppose I'd do the same if there was a chance I could get another surprise last minute notification for a trip beyond the cars present range.

 

Haha you really like to rile people up here don't you, lol

 

i wonder how much research is being put into batteries to hold a full charge without longevity degradation.
that will be a big tech leap and extremely helpful.

 

Already have it with LFP, but the ability still leaves them with shorter range in an EV compared to cars using the typical chemistry.

 

Having been a victim of the original Nissan Leaf - which advertised a 100-mile range, owners quickly discovered its range would in fact be less than ½ of that range as its traction pack quickly degraded from heat & insufficient thermal management. The issue was that the Nissan Leaf over-promised range - even under some of the best conditions.
Reality was on the freeway - drivers would only get 70 - 75 miles of range.
EV advertising can still be misleading, modernly. EV ranges have in some cases been extended to over 400 MILES. What this means is that in the worst conditions you can still drive 200 miles in some EV's. Obviously the long range EV is way more expensive than the chintzy ones. The good news is that each iteration gets better & better - especially with range.
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Now imagine your range if the +20F had been 0F (or -20C or -30C as many of the Canadian folks are experiencing). I've seen minus numbers in the sandhills of NC.

The Canadian Toyotas dealers sell a special winterization kit not available in the states that keeps everything (block, 12v, cabin) in a hybrid charged, warm and ready with multiple heaters. App regulated.

 

We hit minus 15 C at our Nashville home about 13 years ago.
heck - you needn't go to Canada to experience -30C. Here in the frosty winters of Montana, just 2 years ago (even before winter started!) .....

.
Kalispell sets daily record low | Daily Inter Lake
It wasn't even winter yet!
The US record for Continental low temperature belongs to our Frosty state - if memory serves. - 70f.
Point being that even with our sub-zero temperatures here, or whether you calculate it through Fahrenheit or Celsius ..... there are quite a few Tesla's running around our landscape all winter long.
Fortunately most people that have to leave the house in frigid weather know what the risks are.
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ps isn't middle English such a fun language to study ! Ever count the words on a page of middle English that look familiar? 10 per page, if lucky, or a middle English scholar. I looked up chaise, than started counting how many words I couldn't place into the story without backtracking.
Thank You for linking that ole poem / story.

 

Fun fact about the author's son. He served on the US Supreme Court longer than any other chief Justice. Crap you remember from law school. Nowadays - the word Holmes comes up more frequently as a greeting by gangsta thugs. Times change. Many elementary schools don't even teach cursive writing - ergo our daughter homeschools her four kids. My elementary school was named after one of Holmes Harvard associates - Ralph Waldo Emerson. But we digress.

 

Bob, were you already at 90% SOC and just did the preconditioning without adding any range?

I wonder if you'd see similar readings if you ran preconditioning with less SOC at those kinds of temps.

It doesn't look to me like you used too many kW from the grid to get the battery and cabin inhabitable, especially if you could have / might have have added some range while preconditioning.

 

-9 F at the loading station of Big Sky's Six Shooter ski lift last week. Other thermometers we saw varied from -4 to +5 F (excluding a 'warm' +15 in direct sunlight at the top of another lift). We were well bundled up, because we just couldn't miss getting first tracks on several runs in the fresh powder.

This was much 'warmer' than our first visit to Big Sky decades ago, when the ski operations didn't even open due first to high winds (blowing over rail cars up north), then actual cold. So we nordic skied nearby, took a snowcoach tour into the Park to Old Faithful at -25 F, then left for home at -41 F. Being younger back then, we could handle a bit colder temperatures than now.

Rogers Pass, January 20, 1954. Before my time, but I can still hear my mother quoting it.
https://en.wikipedia.org/wiki/Rogers_Pass_(Montana)#Record-cold_temperature

Not to be confused with the other Rogers Pass (British Columbia), named for the same person, but located a few hundred miles to the northwest. And also damn cold, plus avalanche-y.


Coldest Temperatures Ever Measured in the Contiguous U.S. | Weather Underground

 

visiting our daughter and grandkids for a week, we're staying in our timeshare - as friends are using our Nolensville house. Landed in Nashville late Friday night - only to wake up with snow on the ground. not too often one leaves Montana winters only to get colder weather in the south. Sure glad our budget rent a car Prius ended up being painted black as it really captures the heat. if you have to burn $4.12 gas, better to be getting 48 MPG than not. Oh well .... the rest of our stay well be in the 40° and 50° .... plus the pool is heated and indoors