I've been having an issue with my 100/30's going into float way before absorbtion or even float voltage is achieved. I then noticed there is a thread about this issue on the Facebook Lithium on Boats page and decided to check out my system. The MPPT shows a battery voltage of 13.71v. Battery voltage measured at the controller's own battery terminals show a voltage of 13.48v, BMV-702 shows 13.48 voltage at my solar charge bus measures 13.48v. I and many users on the Facebook group believe there is a software issue with the MPPTs. FYI I'm running 1.37 and have just reinstalled this version to rule out software corruption.