Electric Vehicles

Rated range, meaning 100%-0% in near-ideal conditions, drops significantly in the winter. Battery conditioning and a cold start can drop it by 35% if it's using resistive heat (as opposed to a heat pump), plus reserve capacity on both sides (you don't usually want to go below 20% or above 80%, to maintain battery health).

I recommend people take the listed rating and cut it in half for real world use in bad conditions. For instance, if you need to travel somewhere that's 75 miles away (150 round trip) in the middle of winter without charging, then you need a battery rated for 300 miles. You can obviously get by with less if charging along the way is viable, and these are just estimates. If your route is 80 mph, it will suck down a lot more juice than the same distance at 55.