I have 2 deep cycle batteries on my boat that are installed in series for 24V output. One of them is connected to the main engine (50hp Honda) but my understanding is that the main engine doesn't charge the deep cycles and in fact it can damage them. I just use the deep cycle for typical accessories (sounder, downrigger, courtesy lights, etc.) and usually charge them with a smart charger when back on shore.
I did a little bit of research and found the marine batteries with dual starting & deep cycle feature. Would they be a good replacement for the deep cycle that's currently feeding my engine? or should I invest in a starting 12V battery for starting my main and attach the accessories to the other deep cycle?
I did a little bit of research and found the marine batteries with dual starting & deep cycle feature. Would they be a good replacement for the deep cycle that's currently feeding my engine? or should I invest in a starting 12V battery for starting my main and attach the accessories to the other deep cycle?