I recently purchased a 1979 Halman Nordic sailboat as a project boat. The boat has a 9.9 Johnson outboard on it that is electric start. Currently, both the battery (for starting the outboard and for lights, etc.) is located in an aft lazerette, next to the fuel tank for the outboard. This is a good place for each of them, as the compartment is sealed from the rest of the boat and fumes from the battery and from the fuel tank can vent to the outside. I'm not sure, however, that it's a good place for BOTH of them, for fear of sparks igniting fuel fumes. <br /><br />Is there a safety concern with having the battery and the fuel tank in the same compartment, or is this common practice?<br /><br />Thanks.