Battery charger

Does anyone have an idea why my batteries are not being charged while plugged into shore power. I have the breaker switched to on. The little green breaker light doesn’t seem to come on, could the breaker be bad? Any suggestions would be appreciated!

No green light, no input power.

I have had similar things happen in the electrical system on boats I've owned from 12V to 120 VAC. I would suggest, disconnecting your shore power cord from your boat first for safety. Remove the cover that covers all connections and breaker connections from the back of your shore power panel. Unscrew each connection, check for corrosion, put a dab of the appropriate conductive grease and tighten each connection to specifications.

I have done this on a connection to a switch or breaker that wasn't working and it fixed the problem. Also check your battery charger.

Often problems are caused by the ground wire corrosion which seems to be neglected at times. Use your volt meter to verify that there is a charging current. At rest a Lead Acid battery should read 12.7 +/-1 volts. When the charger is working properly the voltage should 13.1 or more. AGM and Li batteries wil be slighlty higher.

Every C Dory owner (boat owner) should know the basics of measuring voltage, resistance and current flow with the voltmeter which all boat owners should have in their kit. There are several books. on "12 volt bible"/"12 volt Dr's voltage hand book" etc