new battery bit the dust but could have been worse.

I had not check terminals before I left and I am about 99% sure that was the issue b/c i notice one terminal melted to the ring terminal. I popped caps off and I could see water in all the ports. The wing nuts were very rusted and needed to b replaced and I feel like they were worn to the point that they didn't fit snug. I will get proper terminals and tight them down with hex nuts and use a disconnect! Thank