Unit came with my Keystone Cougar 23MLE w/400i solar system. I have 2 x 200W panels and 2 x 100Ah Dragonfly LiFePo4 batteries as well as the Smart Shunt. I purchased the fifth wheel (new) in March this year and I have discovered the MPPT 100/30 was set to the default of AGM batteries and charging to 13.67V. Shortly after going through the Keystone instructions to set the MPPT and shunt for Lithium batteries, they charged to 14.2V for a day but then reverted to the 13.67V (Float).
I have rechecked the settings multiple times but it doesn't change. Neither device shows any desire for a firmware update. Anything I can do?