noticed this on a tech site. A little on the expensive side for me to buy w/o trying them out (70 euro for liner gloves, 50 for the insoles... what's the exchange rate on $ anyways?)

Anyone have experience w/ this or a similar product?

https://www.softline-online.de/englis...ortablesys.htm

I don't think it that difficult to make your own. I mean, I'm not a EE or anything but any kind of material that has resistance will generate heat when a simple circuit is created so I'm thinking if you just take a battery or two in series and wire that to something that has some resistance (more resistance more heat (but might need more power)), you'll have your own battery warmers. Put a switch inline with it and you can turn it on or off or if you buy a battery socket from R-S or someplace, just remove the battery when you want to turn it off. I have a friend who did something like this. It wont be a fancy incorporated with your gloves but it would work nonetheless. My friend also has a very short commute, I suggested one of those gelpacks that you can microwave and it dissipates heat slowly. I told him that rather than the chemical heatpacks, the microwave ones would be reusable and therefore, cheaper.

Jay

[I'm thinking if you just take a battery or two in series and wire that to something that has some resistance (more resistance more heat (but might need more power))

Not to be picky, but the opposite is true. For a fixed voltage source, like a battery (nearly fixed anyway), reducing the resistance increases the power dissapated.

Power= (voltage)^2/Resistance

For fixed Voltage, cutting the resistance in half gets you twice the power.



I too am curious to see if anyone has built anything like this. Wouldn't mind some of those in my shoes!

Had battery heated socks years ago. They caused the feet to sweat so much they were worthless. Also the wires made walking in them painfull. Buy stock in the company of the batteries you buy. You will use many of them.

From what I've seen, those battery operated socks are supposed to be turned on only for the times when your feet get cold, then you turn them off before they get sweaty. This would solve both your sweat and battery problems.