floridakeysskibum
Ski Diva Extraordinaire
what does everyone think of battery operated boot warmers? You know, the $200+ variety?
I've started to notice the toe warmers just sort of freeze after a few runs (they stop warming and go cold)
It generally has to be pretty cold (less than 10 deg. or so) before I have a problem with cold feet, so it's never seemed worth it to go for built in heaters. But I do find the disposable packets very effective - and they fit well on top of my toes. I think the key is to let them fully start working before you put them in the boot. Then they are meant to work with very minimal air so they last longer. The other key is make sure they are fresh. If they sit around too long they lose their effectiveness (they are stamped with exp. dates).From what I've been told by a bootfitter those packets are ineffective in boots because they need an air supply to work, which they don't get in a boot.
My new ones most certainly do not take 2-3 days to charge. At most a few hours. I'm thinking something is wrong with your friend's outlet, charger or batteries.I have the Hotronics. I've used them for about 4 years and I'm very grateful that I have them. I have the old batteries (Nickel-MH) that last me a cold day of patrolling on level 2 - antifreeze level, not warming! A friend has the new Li-ion batteries which last for 2 days, but also takes 2-3 days to charge!! You need 2 sets of batteries for sure if you're using the Li-ion.

I have the Hotronics. I've used them for about 4 years and I'm very grateful that I have them. I have the old batteries (Nickel-MH) that last me a cold day of patrolling on level 2 - antifreeze level, not warming! A friend has the new Li-ion batteries which last for 2 days, but also takes 2-3 days to charge!! You need 2 sets of batteries for sure if you're using the Li-ion.