I've got those type of hands that soon freeze without gloves.
There's no on or off switch. You plug the battery in to the wired connector and it switches on that way. The other morning I took the dog for a walk whilst wearing those eGloves (battery warmed). Initially I wasn't convinced that they were working to full capacity, because I'd previously worn them in 10c temps, when they soon became uncomfortably warm. So I tested that by leaving one glove on, and putting the other in my pocket.
I soon came to realise that they were doing a good job in a bitterly cold environment. My gloveless hand quickly had that cold, clammy, refrigerated chicken feeling whilst the other felt like I was still at home with the the central heating on, but not heated, if that makes sense?
10 minutes later, when I put the electrically warmed glove, from my pocket, onto my cold ungloved hand I immediately felt it absorbing the artificial heat source. It soon warmed up and that's the important difference with eGloves (or whatever you prefer to call them). They have an external heatsource. One that doesn't rely on you warming up the glove to warm you back.
For just being out and about in the cold, dog walking, snow balling and such, I can't fault them. As for biking with them and how they perform in keeping the driven wind chill factor away. I've not tried that yet. Maybe later, as I've only worn them for an hour or so.
Features:
- Waterproof, suitable for mountain climb, ride motors and so on.
- Keep your hands warm, you will never be cold this winter!
- Long-lasting warm.
- Skid design, adjustable strap,elastic closing, convience and easy to use.
- Suitable for people whose middle finger to the wrist about 18 cm.
- Heating parts: Back of Four fingers
Specification:
- Color: orange with black
- Materials: Anti-splash surface finish fabrics; PU leather palm skid
- Voltage: 3.7V
- Power: 2.5W
- Charge time: Approx. 3 hours each battery
- Power:2 x 2000MAh Li-ion Battery (Battery including)
- Size: M -- 11.5 x 28.5 cm / 4.53'' x 11.22'' (W x L)
- Keep Warming Time: About 3-4 Hours.(Depend on the temperature of the surrounding environment and usage)
- Heating constant temperature:50 degree
- Net weight: 284 g
These were a pair of inexpensive egloves. So I wasn't too fussed if they worked or not. Some, like these in the link below, cost an arm and a leg. You'd hope that they would really perform well at those prices.
https://www.sealskinz.com/gloves/extreme-cold-weather-heated-gloves.htm