First try with these gloves it wasn't super cold so I'm not sure how well they work. Second try, I had charged the batteries about a week before and when I went to use them the batteries were totally dead. I tried again and had charged the batteries 3 days before use and they were still totally dead. Haven't had a chance to see what they can do after charging the night before. I bought them to use when mountain biking on cold mornings. So far I'm not impressed. They are more bulky than my normal warm riding gloves that work down to about 40 degrees so unless I can figure out how to get them to work I'll be sending them back.