Chassis battery charging when parked
Is there some component that is supposed to keep the chassis/engine battery charged while the RV is plugged into shore power? I tested with the engine running, and I'm getting 14.0 volts from the a...
Forum Discussion
Most due but some do not. When you plug into shore power or generator due you have the 14 volts on all the battery then. If not check voltage on the inverter/converter output. Could have trip or gone bad.
If good then maybe a bad battery. Put a regular charge on the battery and see if it charges up then voltage drops. Also if wet cell you can check cell voltgage and use a battery hydrometer tester to check each cell. If you have not been using the battery or not keeping them charge they could be sulfated. I de-dulfate my wet cell battery once a year. Newer smart charge, most have that re-new or de-dulfate cycle on them. Takes about 4 hours per battery. You need to take them out of the system to do it. Remove the caps, and put a wet rag over the open cells.
If good then maybe a bad battery. Put a regular charge on the battery and see if it charges up then voltage drops. Also if wet cell you can check cell voltgage and use a battery hydrometer tester to check each cell. If you have not been using the battery or not keeping them charge they could be sulfated. I de-dulfate my wet cell battery once a year. Newer smart charge, most have that re-new or de-dulfate cycle on them. Takes about 4 hours per battery. You need to take them out of the system to do it. Remove the caps, and put a wet rag over the open cells.
