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Porthole - I'll be interested if they respond, and for sure, what they have to say.
pterrydactyl - Ever since you responded, I've been working on trying to come up with a solution. Here's what I think will work, but check me on this - you know a lot more about electricity than do I.
When temperature is below 40 degrees
Remove the switch and cut each of the 3 wires
Put a multi-meter in line between each of the wires
Turn on the switch and read the amperage.
Multiply by 12 (voltage of the battery) gives watts
Compare watts drawn with specification cited earlier, which I got from the owner's manual of the heating pad.
-OR-
Cut the single line, wire the multi-meter in between each of the leads.
Turn on the switch and read the amperage
Multiply by 12 for watts
Compare with total wattage of 3 pads and the 23 watt elbow. I'm thinking that DRV might have drawn 23 watts off of one wire for the elbow heater, but they probably would not draw off of one wire for 2 heating pads. I conclude that because if they would do that, then there wouldn't be 3 wires coming from the switch - there would be two.
What say anybody ?
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