Trick the WFCO converter into not entering 14.4v?

I believe the programming is to give a 15 minute "boost" charge every 24 hours. Pretty sure all WFCO do this along with PD, Boondocker and IOTA. No practical way to stop. Although many 12v items will tolerate 10 to 15 volts so I would not worry too much. If one of the fans actually burns out you could either use a different power supply or find some type of 12v regulator.