Well, after a lot of laboring over how to best integrate the Valence batteries into my solar electric catamaran, I decided to go a different route.
Unfortunately the need for an external BMS, balancer, and relays was complicating the system I worked so hard to keep streamlined and simple. But the real deal killer was that my 24V bank is split between each of my hulls without any way to keep the interconnections between the two well protected from the elements.
In the end, I decided to have some batteries custom configured for me from a manufacturer in China. The replacement batteries while not quite as large in capacity, are smaller and lighter, and have an internal BMS will full protection, and the manufacturer was able to build/configure the batteries for me with a higher continuous discharge rating since my dual brushless motors are capable of pulling 100A.
I kept one of my Valence batteries and the Thunderstruck BMS and may install it as a house system in my Trimaran, but I’m not sure if I have room for a group 27 size battery and may switch to something smaller depending on how much solar I am able to integrate into its hard bimini top.