DIY heating dry gloves

[shenzhen]

I bought a carbon flex tape and have sewed it into an ordinary insulated fleece gloves.
For every glove I used 145 cm of carbon. It powered by 12 V. Current is about 1,5A for one. I've tested it 50 min in water +1/+3. My fingers were absolutely warm.

 

[Diver0001]

... why do I not see this ending well ...

R..

 

[rjack321]

Wow nice job. I'm somewhat surprised that 18w per hand is enough in water that cold.

 

[shenzhen]

I've previously tested it with 10 watts per hand. After 30 minutes diving in the icy water my hands were freezing significantly. In one of the dives I applied power only on one arm and saw a very large difference between the temperature of the hands. Yes, 10 watts was not enough, but it's much better than nothing.

The last model I made ​​with 18 watt carbon tape per glove and placed it as close as possible to the hands. To do this, bought sandwich insulated gloves: thin inner glove - insulator - thick outer glove. Removed the insulator - the middle layer. Then I sewn the carbon on the outside of a thin inner glove. On each glove connected the power button. Put on top thick outer gloves, connected the wires. Power supplied from 6 lithium ion battery attached to a belt under dry suit.
I can say exactly, 18 watts is enough for ice water at any length dive.

With a carbon ribbon is easy to work, and it is easy to place in any items of equipment. The next time I'll try to make a heated vest.

 

[Peter_C]

Your DIY project is awesome! I am going to show it to my friend that gets really cold hands. I like everything except the lithium ion battery under the drysuit part. If you dive salt water and flood it could be a very painful burn, and will make a huge mess. I have seen can lights flood and it is ugly. Have you thought about using a canister mounted on your waist harness? You would then use an E/O cord brought thru the inflator valve.

This might give you some ideas.
Solar Heating - UTD Online Store

 

[elan]

You might want to revisit your core insulation. If you feel your hands freezing quickly it is ofter the indicator that the core is not insulated well. I had a similar issue which disappeared after adding 200g vest. 1-3C is normal temp here during winter.

Cool project otherwise Is your lithium battery flood protected with a discharge controller ? If not it might be very unpleasant experience if you flood the suit.

I've previously tested it with 10 watts per hand. After 30 minutes diving in the icy water my hands were freezing significantly. In one of the dives I applied power only on one arm and saw a very large difference between the temperature of the hands. Yes, 10 watts was not enough, but it's much better than nothing.

The last model I made ​​with 18 watt carbon tape per glove and placed it as close as possible to the hands. To do this, bought sandwich insulated gloves: thin inner glove - insulator - thick outer glove. Removed the insulator - the middle layer. Then I sewn the carbon on the outside of a thin inner glove. On each glove connected the power button. Put on top thick outer gloves, connected the wires. Power supplied from 6 lithium ion battery attached to a belt under dry suit.
I can say exactly, 18 watts is enough for ice water at any length dive.

With a carbon ribbon is easy to work, and it is easy to place in any items of equipment. The next time I'll try to make a heated vest.

 

[shenzhen]

Of course, I'm planing to power it by a canister battery. It's just a test now.