I have two Magnum 4024 MSH-RE inverter/chargers. The one inverter/charger never gets to a float charge. It will hover around 26.9 to 27.1 volts with an AMP draw jumping between 0 - 2 amps. The other inverter/charger gets to 27.1 volts then goes to Full Charge mode.
I have disconnected all AC voltage draws (turned off breakers) and all DC voltage draws (turned off breakers) that I can find and still have the same results.
Both inverters/chargers are set up exactly the same but produce different results. I have AGM battery's and know it is not good to constantly charge them.

Chuck