I’m looking for suggestions on what would be the best fit for replacing my boat starting battery? I have a Glastron 185 Fish-Ski with a 3.0L Volvo Penta in it. I have mostly standard electronics in it like a stereo, Depth finder, live well, lights, etc. nothing to big or over the top.
The previous owner had a car battery as the starting battery. Believe it or not it lasted about 6 years. I believe that I probably should go with a Marine dual-purpose battery, and it looks like I should even focus on a AGM design battery. I know Optimus is one good brand, but I’d like to hear some pros and cons of Optimus and other brands as well.
Also as I am going from a 12v trolling to a 24v system. I have a 2 bank battery charger. Now that the deep cycles are wired in series, do I put only one charger wire on one deep cycle battery and the other on the new dual purpose battery?