I have a 70D and I live in the Greater Toronto Area. Next week, I plan to go to ski at Blue mountain Collingwood and stay there overnight. The hotel that I am staying at doesn't even allow 110v charging. I will need to charge at the Barrie SUPERCHARGER. But The question is, will I be able to make it to Blue mountain Collingwood AND back to the Barrie Supercharger in the winter (with only one charge) ?