Here’s my cave man parasitic draw test:
1) Verify with certainty there are ZERO gasoline fumes.
2) Confirm that every switch on the boat is off.
3) Disconnect one of the battery cables.
4) Provide darkness using time of day or some sort of shade.
5) Lightly touch the disconnected battery cable to the battery terminal.
6) Does it spark? If so, something is drawing power. If not, there could still be a tiny bit of draw.
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