Boatingeurope LiFeP04 battery upgrade for liveaboard lifeboat

Looking at upgrading my boat liveing battery setup. Am following this guide to dip my toe in, currently my main 500amp leadacide battery bank has failed after 4 years use due to a fault on my #MPPT solar controller with the boat left on hard standing in romania over winter. Being under voltage for a few months killed them.

Last year in the spring while on the danube delta I did a quick fix by rewiring to an old 110amp good quality starter battery I had as the boat liveing bank. This has lasted us through this year on low power usage overnight.

It’s time to get a better setup.

On order: https://www.aliexpress.com/item/4000306076197.html and https://www.aliexpress.com/item/32921460278.html