Thanks for the info. I looked at the Varta option and I like the idea. However, these are sealed batteries and I was wondering if I need to change /alter the original boat charger which is left on continuously - charging rate?
I had previously looked at the Trojan option, however, the batteries seem to be quite tall and I am not sure if they will fit under the bunk where they will be housed. I will need to take some measurements.
Fair winds,
Bavnav.