Sounds like good advice. I know very little about maintaining my new (used) golf cart, but I really want to learn. I'm testing my batteries this afternoon, but think I may have murdered them through my ignorance. They were 5 year old batteries, but I think several factors may have driven them over the edge........driving with low air in the tires (they looked great, but had no air), not checking the battery fluid level often enough, not charging often enough, and not having a nice garage to store it in (kept it in a Shelter Logic shed) in a bad winter.
I have the feeling I'll need new batteries very soon. So when we change them out, I'll give the supports a good cleaning.
Good to know about rotating them.