Turn the switch back on, then off as entirely as possible. Since the disconnect switch is a round knob, it may appear fully rotated and disconnected. Make sure the switch is fully rotated.įirst, check to see if your switch is fully turning to the off position. And the draw of power in things like your smoke detector and the clock will continue to drain your battery until you have a dead battery. The main suspect is that the battery disconnect is not cutting off the power from the battery to your RV. If your issue is that you have a dead battery while the disconnect switch is off, you will have a couple of things to check. Let’s review common issues and solutions with the switch. Each specific situation may have a different solution. There can be a few problems you are experiencing with your disconnect switch. Problem with RV Battery Disconnect Switch Regardless if you have an AGM battery, lithium battery, lead acid battery, or deep cycle battery, the electrical power is disconnected the same way.Īnd with a battery disconnect, it only needs to disconnect one battery cable (usually the positive cable) to cut the electrical power to your travel trailer. Your RV electrical system provides 12 volt power using both the positive and negative terminals from your trailer battery. This prevents your battery from powering unnecessary components such as lights or smoke detectors while parked and keeps it at its full charge so that when you are ready to hit the road, you don’t have to worry about running out of power.Įven when connected to shore power, the battery disconnect should still work correctly and disconnect power to your house battery.
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