I was considering using an Orion TR-smart between my battery isolator and my 4x100Ah LiFePO4 bank. The isolator has 5 connections 2 alternator inputs and 3 battery outputs. The application is on a a catamaran where my solar PV panels charge my Li batteries very well most of the time, The isolator is connected to the Hitachi 80A alternators on my port and starboard engines, and the outputs are connected to two 100Ah AGM starter batteries (outputs 1 and 2) and the 400Ah LiFePO4 house bank (output 3). I was concerned that if I were to run an engine or two, and my Li bank was not nearly charged I could end up overheating my alternator(s) by drawing too much current. With the batteries nearly fully charged I still saw the Li bank draw 50A from an alternator when one engine was running. Would the 30A Orion TR smart not only provide a current limit of 30A being drawn for the output #3, while also providing the optimal charging voltage for the Li bank at the same time the AGMs were charging at the appropriate voltage?
