New element arrived. Measured 0.6 ohms. The heat shrink is not white but gray is shown in the picture, but it feels the same. I don't think I'll put it to use, it feels like running a 300 watt rated element when I have nearly 500 watts to give when batteries are full is just not adding up to success. Sourcing a 500 watt 12V element has been a dead end. I can find NPS threaded ones but not the right 1 1/4" for swapping out the OEM 120V AC element. And this 300 watt one is the highest wattage 12V cartridge heater that I can find with 1/2" NPT for using in the drain plug.
