Thanks for all the replies. I was looking for those on here that actually own one to chime in. I know there is a ton of info on Youtube and such, just nice to hear it from actual owners on here.
I despise the cold, so l live in Florida.
However, I do have a lot of fun jumping around the globe due to my very long aviation career, and I have plenty of experience in bitterly cold locations. It's good to remember that the vast majority of combustion engines (of all types, piston, diesel/gas 2-stroke/4 stroke, turbine, etc) also need to be plugged in and/or warmed in such climates. One exception may be purpose built small gas turbines.
I did provide some applicable battery insight in my post above. There is "no magic battery", lithium batteries must be well managed in cold use. If you plan on using battery powered anything in extreme cold, make sure you understand what the built in systems do, how long they take to heat the battery before use and especially before charging. All manufacturers are different, I believe I know who does it best, but recently learned that BMW had some pretty epic battery management systems too. It may in fact be that you get what you pay for.
Only you can determine whether it will work and hold up in your situation. An informed choice is a good one.
Again:
40 below = 50% capacity. 40 below is also where charging rapidly ruins an un-warmed battery.
Above freezing is where lithium batteries want to be.
Remember, cold slows chemical reactions, and batteries are electrochemical energy storage.