in mine i have put them in a battery box and the bat box is bolted,not self tapped into bar of Fibre stuff underneath, which is turn is screwed and everflexed on the the bottom of the consol,
the battery is one of those Optima batteries which fit with in a quarter of a inch of the box,and i just packed it out firmly all the way around,
the box has a strap around it!!,
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