but what I always do is get it running at camp before I head out for less than a minute to help warm it up. Makes it much easier to turn on when your in the blind and you won't have to click click click click click to turn it on lol.
Sage advice. I'm taking my 28 year-old "baby" girl hunting on Monday. 'Want to keep her comfortable. I have a nice, well outside his ears, ten patterned. We'll see.
Thanks to the OP and all for reminding me to take it.