We are driving from Coeur d’Alene to Waterton Lakes National Park, Alberta and wanted to take highway 95 into Canada. There are no superchargers on the way (unless Tesla opens Fernie SC).
Any suggestions will be welcome.
Ah, so really roughing it. I do have suggestions. It is usually possible to go almost anywhere if you're willing to use some slow charging and take your time.
The cool thing about wilderness areas that are far away from cities and official "electric car charging stations" is that they have a lot of campgrounds. And campgrounds usually have electrical hookups for people's campers! So, sites like RVParky.com and Allstays.com have good maps and listings of all the campgrounds in each state. Some of these occasionally get added to Plugshare if people have used them for car charging and decide to add an entry, but most of them aren't listed there. I did one of these, called an RV park back in 2014 to arrange charging, and then added it to Plugshare, and other Tesla drivers used it over the next couple of years until the Superchargers got to that area.
Idaho campground map on Allstays:
All Idaho RV Parks and Campgrounds
You can filter on the right by certain amenities. You will want to click that button for "50 amp". In camping lingo, that means a 14-50 outlet, like your Tesla charging cable uses. I see a couple of them near Bonner's Ferry with 14-50 hookups:
The Hemlocks RV & Lodging and Blue Lake RV Resort.
Call either of those to see about getting a spot and whether you can car camp with an air mattress or bring a tent or whatever. Some places are a little picky about that, but these places that are outside of big cities are usually pretty casual about it if you want to rent a spot and tent camp next to your car.
And then farther up highway 95 in Idaho, I see near the town of Good Grief (yes, not kidding) someone has added on Plugshare a place called Idyl Acres RV park that someone used for charging before.
PlugShare - Find Electric Vehicle Charging Locations Near You
And then there is a map of campgrounds in British Columbia if they don't have enough Plugshare resources where you need them:
All British Columbia RV Parks and Campgrounds
If you can find places that have the 50 amp hookups, great! That will be 240V 50A and pretty fast charging. But if you can only find smaller places that only have what they refer to as "30 amp", that is a TT-30 outlet, which is only 120V and 30A. It's much slower, but can be around 9 miles per hour of charging, and is kind of OK for overnight. Tesla doesn't officially sell an adapter for that, but a site called EVSEAdapters makes really good ones. If you have the older 1st generation Tesla cable, it's this one:
TT-30 Adapter for Tesla Model S and X Gen 1
Or if you have the 2nd generation Tesla cable, then you want this one:
TT-30 Adapter for Tesla Model S/X/3 Gen 2