How comfortable are you with taking measurements with a meter?
1. Is the battery connected correctly?
2. Disconnect the battery and take a DC voltage reading across the terminals. If the VDC is not 12.6 or more, you will need to charge the battery. Consider charging the battery while it is disconnected. A good charger will take 24 to 48 hours to fully charge a dead battery.
3. With the battery fully charged, reconnect the cables and try to start the coach.
4. If the battery drains quickly, you'll need to take the coach to a dealer and have them check out the AMP draws on the battery. Sitting and not being used, the chassis battery should be fine for several months.
All this assumes you have turned off all the automotive appliances that can draw down the chassis battery.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
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