Jim, there are no flashlight geeks here.
Just about everything now uses an LED for light. The battery performance is radically different from one type to another. If you were really concerned about cold weather performance, then you simply keep the light in a warm pocket. Of course that doesn't always work that smoothly, and you forget which pocket it is in.
Rechargeable batteries are often NiMH chemistry, and they will work down to cold, but not super cold. Lithium primary batteries will work down to super cold, but they are not rechargeable. One idea there is to carry rechargeable batteries for routine use, and then carry lithiums for the unusual situations.
50 yard "range" has no meaning. You want to borrow the lights of some friends who know what the intensity is of each one, typically measured in lumens. After a while, you should know whether you need 10 lumens or 100 lumens or whatever. Many of the newest breed of lights have different levels of intensity. So, you can turn it up high for night navigation, or you can turn it down low for camp chores. Also, you will note whether you prefer a spot light pattern, or a flood light pattern. There are a few that can be zoomed to get from spot to flood. You will also figure out whether you prefer a flashlight or a headlamp. I always go for a headlamp, because I can use it on my head, or I can take it off and hold it low for trail walking. But if you go for a flashlight, there will be times when you need both hands for something else.
Fenix and Zebralight have lots of new models, and there are several other brands as well. You may have to decide first which battery type you want, and that may come from which other battery devices you already carry.
I decided on a headlamp that uses a single AA battery, has about 100 lumens of maximum intensity in a flood pattern, and has three levels of intensity. It ended up around 2 ounces of weight.