How long does the heat last with these warmers?
616923
They lasts approximately 1 hour. However, the process of reheating these in boiling water is more of a pain than I initially thought. Too often do I forget to prepare them and I ended up using them rarely. Instead, I would recommend hot hands (HeatMax Hot Hands 2 Handwarmer). Good luck with the winter weather!
705150
they get quite hot enough to use pretty quickly--10-15" maybe, but will not burn your fingers because they have the "cool ends". If left for a LONG while, they will get hot enough to burn when you pick them up!
2196685
45 minutes to an hour. I heat them for 1 minute. I hop into bed with them on and sometimes go to sleep, so I'm not exactly sure of those times. While watching tv I can get about an hour.
1313327
Depending on how hot your water that you put in it is, anywhere from 20 to 30 minutes and it's still warm, then.Very nice product, we bought two of them. It's very malleable.
531777
I really don't know the exact temp but they are warm. I let my towels warm before I get ready to shower and then turn it on again ( It auto shuts after 20 min.) just to make sure they are really warm for me. And they feel so nice...NOTE...Don't roll the towels, just drop them in the warmer, it works so much better that way. Also, don't put more that 1 towel at a time.
246681
Absolutely OK. They emit close to zero heat. You can grab the bulb with your bare hands even after it has been on and not get burned.
554891
Not very strong & only activates when they are heated. Warmth only last for about an hour so I do not use them very much.
1759946
5 minutes max. Be careful you can burn them if you have the heat up to high
1313328
Depending on how hot your water that you put in it is, anywhere from 20 to 30 minutes and it's still warm, then. Very nice product, we bought two of them. It's very malleable.
98097
Approx. 2 hours , these are ok to ware , but it is not warm enough for me , I'm riding the bike in 30-35 degrees ,
1973581
It should be warm in minutes. Mine were. But they don't get too hot to touch.
2069477
The battery door on this product tends to be weak, but the overall product is by far the best hand warmer I have ever used. I have four of them, and they have worked wonderfully for over two years. Even if the battery function breaks down, they can be easily lit with a lighter, just a quick light is all it takes. These never go out, burn for at least 6 hours with complete dependability. I have tried the comparable Zippo product, and these warmers are the only ones I would ever rely upon for warming my hands. I would buy more, but these tend to go on and on.
1075580
Not sure about super body hand warmers. I'm just happy with Hot Hands. They never did give up on me and there were times I was out in O degree weather all day. If they slowed down, all I had to do was pull them out in the air and shake them couple times and they fired right back up. If fact they were still warming the next day when I went to replace them. If super body and hand warmers are better I would like to try them as well.
880691
The gel packs are 5" X 10". There are two because there are two pockets in the shoulder wrap to cover the entire shoulder. I find that they stay cold about 30-45 minutes. I have never used them hot as they are not microwavable and it's too much of a hassle to heat water to warm them.
1928178
I've reheated mine when they were not completely cool, but I reduced the heating time in the microwave. A few years ago, I over heated one of mine (I put one in the microwave one early morning while I was bleary eyed.) I accidently hit 14 minutes instead of 7 or 8. When I came back in the kitchen, the outside plastic had melted allowing the inside liquid to leak out. It was gooey and stunk to high heaven. As long as you use the recommended heating times, and don't go overboard like I did, you will be fine. I've been using these for years with no problems, other than the one I caused.
2017755
Not as long as I would like, but it kind of depends on if you have them just lying on top of your puffy eyes or wedged between your back and the bed which would be warmer. I actually will buy a regular larger gel pack next time because their thickness allows them to stay cold longer, but these are fine for very small areas, and you can rotate them if you're not using them all at the same time.
1180002
The hand warmer/power banks are 3" x 4" by a little less than 1" thick. The temperature of your environment, and whether you choose the high or low setting, will affect how long the heat lasts. I keep one in each pocket of my coat and they last longer in my pocket, usually up to 4-5 hours on low, and up to 3-4 hours on high. I turn mine off when I don't need them to make them last longer as I am outside most of the day, then I charge them over night for the next day, I have been using these for a year now and love them, they are slim enough to fit in my pant pockets too. Hope that helps:)