Do you need a specific LiFe controller? Mine have adjustable end voltage so I can dial that in to suit. Is the charge cycle different other than voltage cut out? My controllers do a kind of taper charge like a dedicated LiFe charger would, they charge up to peak voltage, then pulse (at full panel amps) to keep it there. A proper LiFe charger would taper the amps down to zero as the battery approaches full, but I'm not sure it makes a practical difference.
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