Moving Batteries

[Nboard10]

I am looking to add more/change the ballast in my boat.....never seems to be enough right? I have a 22 foot Moomba Kamberra V Drive and currently run a 750 lb sack in the ski locker, a 200 lb sack in each engine compartment, sometimes a 300lb sack in the bow and fill another 750 sack just behind the drivers seat. That is what I wish to change. My problem is that I have two batteries in the right engine compartment that seriously limits the available space for larger sacks.
I have found sacks online that will hold 450 lbs each and fit in my engine compartments. But I need to move the batteries out. Has anyone else had the same problem and moved batteries? Is there a better place? Does it matter if it generally stays dry? Not that the compartement stays completely dry all the time anyways..

Well - sorry for the long thread - thanks for the help!

[Nboard10]

Looking to make a move on the batteries this weekend - any help out there?

Thanks guys!