In Part 1 of my evaluation of battery options to replace the aging house bank on Morgan's Cloud, I took an in-depth look at lithium batteries and concluded that they were not right for us.
So that left three types of lead acid batteries in the running:
- Carbon foam (strictly speaking these are a variant of AGM, but let's keep it simple).
- Liquid filled
- AGM (the incumbent)
As in the last chapter, for the purposes of this discussion I'm assuming a 12-volt 800-amp hour house bank, the size we now have on our boat and a reasonable average capacity for many cruising boats.
Let's dive in: