I have an IP 65 10A that charge# my start battery and the XS-50 charges my LFP bank. obviously
I only want the XS 50 charging LFP when the 100A alt is running. Should I disable engine detection and use H or L from engine ignition To avoid the XS 50 from trying to pull 50A from a 10A charger?
That would work, or otherwise you could turn down the charge voltage of your IP65 charger and turn up the turn-on voltage of the Orion XS. IE, set your IP65 to charge at 13.8v and set your Orion XS to not turn on until 14.1v, or something similar.
Its what I just did: Because I had a alternator D+, I disabled the detection, and connected the D+ to the H line. You mention "ignition" but be careful, it should be at 12V only when the alternator is running, not merely when the ignition key is turned. Otherwise you better keep the engine detection.
