I can’t attest to the WFCO, but first you should have a charge strategy, meaning since you have a dedicated LFP charger, do you plan on also using the WFCO??… Either way, an AGM battery algorithm will likely work fine, but no need to routinely ‘fully charge’ the battery…
However, LFP is a considerable investment, thus it’s Uber wise to know what is happening with your SOC, particularly when charging, this is why a Lithium SOC monitor is a critical component in my view - flying blind is a very poor $$ strategy…
3 tons