Just for the sake of asking, does your ohm reader read "open" when turned on and nothing installed?
Without a coil installed on your RDA, the positive and negatives inside the connectors could very well be shorted. I know the o-ring separating these two elements on a few products is small and prone for problems.
If you have a hand held ohm reader/DMM, you can check the RDA itself to see if the positive and negative are shorting with each other with no coil installed. As bacc.vap stated, another way to eliminate it is trying anything device to see what resistance comes up which is a quick and easy method.
I, personally, WOULD NOT just hook it up to give it a test with a battery installed. In theory if you have a VV/VW device, there should be circuit/short protection which would not allow the device to fire in the event there is a short (device dependent, know your device and it's capabilities). If this were the case, testing it in this fashion shouldn't result in you shorting/rupturing/exploding the battery if a short were present. If it doesn't and there is a short.....well, the risk is not worth the gain IMO.
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