Lithium Batteries / charger for Boat

[Bduck]

I have the NOCO 2 bank smart charger in my boat maintaining a 12v wet cell and an AGM. As soon as the life of the wet cell extinguishes, I'll replace it with another AGM. Over the past 2½yrs I've replaced 5 wet cell batteries with AGMs in my vehicles as winter was taking its toll on them. Also, installed a NOCO GEN II smart maintainer for each vehicle. These small maintainers have a selector mode for the type of battery it will be maintaining and cost about $50ea. NOCO has been a good investment for all of my batteries especially with my diesel truck that sits out in the elements not getting the run time it used to. Battery life with my truck ranged from 4-if lucky 6yrs.