Originally Posted by 
swap them out with god's intended lead and grease them up good with silicone grease
also, on the terminals, get the "milspec" ones that are huge and square. They have a 3/8-16 load terminal bolt rather than the dinky 1/4-20 that the cheap ones give you, crimp on eyelet terminals to your cables, again with dielectric in the crimped end (hydraulic cable crimper is $30 from china)
all my trucks have lead (molded) terminals. Need to cut them down, put on eyelets, and run those milspec terminals though.
AGMs still doing just fine, no corrosion like the others.