I have a StingerHP on charge all the time in my truck. If you are thinking of carrying it somehow, get the PLAIN Stinger!
As to light pattern. Mine has Writeright on the lense. I couldn't help, I've been spoiled. With out it, it focuses pretty darn tight, and throws pretty far. It is mostly white wall or other surface area shing that makes me Writeright it. Aw heck >goes out to get it< >shines it around out there in trees and whatnot - with and with out Writeright< Okay, against concrete up close or white wall indoors, it SCREAMS for Writeright. However, brightness at distance is hurt pretty significantly at my test of about 150-175 feet. With Writeright, I can light the house over there and the tree over it. Without WR, I can spot that house GOOD, and see details that I can't with WR.
Last item of note. It doesn't defocus worth diddly. One way is black hole territory, the other way is wings.
It has a moderatly textured reflector about halfway from the bottom upwards. I think it could REALLY stand orange peel, or an Acrylite lense!
What's this about a 6V battery stick? How would I charge it? The Ultra Stinger bulb should be easy.