No experience but interested how well they work and battery life. This will be my first winter with a longer commute, about 3 hours/day or well over twice as long as my previous commute. I have heated gloves that mostly work, best at midrange RPM but there's no more juice for any more heat. Figuring In Jan/Feb I'll be just about frozen after my commute even with my normal undershirt, shirt, insulating windbreak shirt, jacket liner, and jacket.