Oh no![X(] I can see some real problems here. Sorry to be a kill joy but... there is a very real danger of a explosive fuel/air mix with an ignition sourse (the battery) building up in the box. It would be a really good idea to drill lots of holes in the box to allow it to ventilate. It can and does happen. Up to you, My box is ventilated and I carry a small fire extinguisher in my box as well ( I am a firefighter and therefore paraniod).