I just bought a Deka DC31DT Marine Master battery. It is a flooded cell battery. I can't seem to find any recommendations on charging, fluid levels? How often to check the electrolyte? Should I remove the caps when charging? Etc... I want to make sure it lasts, can somebody guide me in the right direction? This battery is going to be use solely for running my trolling motor and lighting. It will not be starting my boat, or running electronics.