Originally Posted by bcmcdonald
After reading the forum for several years now, I thought I was lucky. We leave the camper plugged into shore power over the summer and I have been in the habit of checking the charging voltage at least once a week. Yesterday I checked and it was at 12.6 volts. I turned the water pump on and it dropped to 10.5. After disconnecting the battery, voltage went up to 13.8 and dropped to 13.5 with the pump running. Battery appears to be ok. Put a full charge on it and reinstalled. So far, WFCO is still at 13.8 volts and no sign of dropping to the normal 13.2 volt float charge. New PD 4655mba?
Puzzled. The battery voltage went up when you disconnected it from the Converter?
Or was it the Converter output voltage that went up when you disconnected the battery?
If so, it's possible you have a bad battery.