if the battery terminals look really dirty to the point the dirt can't be cleaned off easily and it so chipped up to the point the color is peeling off and do they need changing again am not talking about the cables just the terminals
Yes if they look like that you are getting a very bad connection. Battery connections should always be clean and shiny.
if the ends on the cables gets too bad then you need to replace them. if the cables are long enough cut the ends off and use replacement ends.
It used to be an old trick to take a bottle of Coca-Cola and pour it on the connectors and let the Coke eat the gunk off of it. But since they've changed to Coke Classic, I don't know if it still works. The paint peeling off the connectors doesn't mean they're defective, the paint is just a safety precaution so you'll know pos. from neg. If your car starts every day it doesn't matter what the connectors look like. Leave them alone. No use asking for trouble.
