All ActivityMost RecentMost LikesSolutionsRe: holding tanks monitorWhen the battery is fully charged with the converter shows 13.4 volts there is also a 100 watts solar panel connected to the battery. when i turn on the main breaker i can see the magnetic piston going down and releasing a switch. the converter looks like its working. I have one circuit that is going to the tank monitor and water pump so I will take that circuit and hook it up directly to the battery to see if it changes anything.Re: holding tanks monitorI calibrated the panel with the tanks full.holding tanks monitorthe monitor panel is an ACU.GAGE from Larson electronics in a 1985 Toyota Dolphin panel work fine (reads the actual level of tanks and battery) when the RV is on battery power but when it is to an external AC outlet it only show only the empty light for tanks and poor for the battery likes it's not reading at all. Is this normal? thanks