An experiment that worked.

[Oldfart9999]

Somewhere I ran across an idea about how to cut back on corrosion at the battery terminals, it may have been from Mike I'm just not sure. Last spring I bought 2 new batteries for my boat both Interstates, also picked up a new charger, Minn Kota Digital. When I hooked them up I put a stainless washer on the post then on each terminal followed by a stainless lock washer and nut, hit them with some corrosion spray and went fishing. I was down for the summer, new wrist, got a bit of late fall fishing then put the boat up for the winter, last week I finally got to get it ready for this year. I pulled the batteries out to where I could get at them and was pleasantly surprised to see the terminals were clean, I pulled them and cleaned them anyways, I had to move them out of the way for some other work. I've never had clean terminals over that length of time, while I would still recommend periodic cleaning this should give you the confidence that your batteries aren't going to let you down unless it's their time to spit the bit. While you're at it don't forget to check the water in the cells.
Rodney 

[Mike Cork]

That wasn't this Mike, but I'll be taking advantage of the knowledge 

[SteveTX]

So by using stainless hardware on the terminals it almost eliminates the corrosion? Im all for that. 

[Oldfart9999]

So by using stainless hardware on the terminals it almost eliminates the corrosion? Im all for that. 

I also used corrosion spray, the combo works, it worked much better than the spray alone. Don't forget, you should still take the time to check out the batteries anyways, if you have lead/acid you need to check the water levels.
Rodney