I add two golf cart batteries for a total of 4 and a starting. Now I have a slight port list and just a little steer down.
I am now considering add a couple sand bags under the starboard couch. Retiring batteries is not easy and where they are makes maintenance great.
Has any body done this before? Or have some thoughts.
Why do anything at all? How bad is your list? Coupla degrees makes no discernible diff in a cruiser. I have a 3º list to port when alongside, also due to off-centre battery position and no built-in compensation. I stow more stuff on Stbd just for form's sake, but it has no impact on performance.
Once you are under canvass, neither you nor the boat will give a hoot.
I have more storage than needed and where I wanted to put ballast is hard to get to. Hence if I put batteries there maintenance would be harder and would not have to run 12'+ of new cable. This would also create a slight volt imbalance between pairs of batteries.