How to make a 9 volt electric vest.?

Question

I want to know what tools and parts I would need to make an electric vest. What would I need besides a multimeter to read and control amps to the heating element? What kind of wire would work best and how can I determine how long a wire I can run for the 9v battery? In other words what is the limit to how many feet of wire a 9v batt. will heat to produce a vest that will maintain enough warmth to be effective as winter wear for hunting from a stand. Some ideas about how to experiment with different ways to make a heating element that will achieve the premise of staying warm. How can I use resistors and or rheostats to control temp or a combination of both. This is something I want to experiment with and so the more diverse the ideas to reach the goal the better. Thanks in advance, I'm looking forward to the responses.

First if you don't know don't waste my time, Irv S and his stupid short answer is just wrong. I had a pair of socks run off a 9v battery that the wires ran up the pants leg to the battery and it not only would last for more than 24 hrs if turned up on high it would get uncomfortably hot on your feet. I know it can be done I just don't know how they were constructed. If anybody has any useful info I could sure use a succinct and complete answer. Thanks

Answer 1

I suspect that the wire out of an electric blanket might do the job. However, you would most likely need about 20 Watts of heating to do this and that all has to come from the battery. That's about 2.3 Amps and a small 9v battery would not be adequate. You would need a battery that could supply this level of current for many hours. As for control, switching lengths of wire in parallel to control current and so the power level should do it.

Answer 2

Either the provider or the organization will endorse you at the highest period of fence. It is often amazingly lengthy as despite the fact that you're pondering best nine volts, the fence will probably be wearing a lot more than this considering that a capacitor will probably be boosting the voltage. High volts can journey an excessively great distance. The country wide grid consists of 256,000 volts for this very purpose. If you contact the fence with damp fingers you are going to think the final result! Whereas a nine or 12 volt battery will deliver no sensation. By the way in which prime volts in line with se aren't damaging (until you've got a center situation). It is amperage that kills.

Answer 3

Short & sweet.
Any 9 V. battery you are likely to carry around
would be useless. Not enough power available.