[goldman]

Originally Posted by REW

Any kind of grease on the steel bar will keep all of the corrosion away for the life of the boat. You can use common wheel bearing grease if you like with excellent results.
I always smear a good coating of wheel bearing grease on all of my battery terminals before connecting connections. The battery terminal nut will squeeze out all of the grease and insure a gas tight connection. Then, I smear some more grease over the top to keep any moisture off the connections. It is a bit messy, but who is hanging out with their battery terminals. If you do this, you will have 0 corrosion as long as you keep the terminals sealed with grease.

REW

exactly.