My Smart Shunt in my 2 battery RV setup (wired as below) is not remembering the last charge setting when the bluetooth connection is broken. For example, batteries are 100% charged and the Android Victron App is connected to the shunt. In the RV, I run out both slides and the fridge is on (draws about 7Ah) overnight. In the morning I start the app to check the remaining battery capacity and it shows 100%. How the heck is that possible?!? I KNOW that I've drained some of the battery overnight. What am I doing wrong?