I have a question regarding the SmartShunt. It says to set the charged voltage to .2-.3 below the float voltage set on my SmartSolar MPPT 100/30 controller. I am using two 6 volt GC2 batteries and have my controller float set to 13.5. Therefore the SmartShunt charged voltage is set to 13.2. With this setting, it seems that my shunt resets to 100% full when the controller is still in bulk charging and above 13.2 volts. Shouldn't the shunt show a 100% charge only after the controller finishes charging and switches to Float? Thanks.