Second Battery Location on 90's Sport Nautique

[mf01]

I searched yesterday, but didn't find much. The stock location for the battery is under the back middle seat. Is there a way to add a second battery here? I think some have put one in the bow, but I'd rather not have them so far apart. Thanks.

[dba4life]

I was able to fit two optima yellow tops in the factory hole on my 94 Sport. Had to make a spacer to lift the battery cover up an inch or so to clear them. I don't have any picts. It was a very tight fit. If you want me to take some just send me a mail at dba4life@aol.com to remind me to take them.