Battery heated poncho.

What is better heating a room or heating yourself? When you are thinking on the last option I have a very simple method. You can use a 12 Volt electric blanket. The only thing you need to do is to make a slit in the center of the blanket to put your head through. And sewing a collar around the hole with a strip contrasting cloth. To close both sides use Velcro. With a 12 Volt leadgel battery of 10AH you can be warm for some time. ,

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