I did walk to the post box with my heated gloves on.
I also used them on a car ride and still plenty of charge left after 1 hour. Might get a heated Gilet next for my early Morning walks. A few days time i have to lock up my bikes with chains prior to heading off on a ship. Of course, i take all the lock keys and leave in the car at Southampton. All bikes are chained to each other and also to the bike lift. It takes some time with 17 locks and various chains and cables plus some D locks but would slow down anyone getting in