Trickle Charger is Making Clicking Noise
Schumacher: MC-1 Charger:
The manual for the MC-1 states:
The charger is making an audible clicking sound. | Circuit breaker is cycling | The settings may be wrong. Check the charger settings. |
I contacted Schumacher Technical support about the MC-1 model charger, and was told it could be an issue with the battery or the charger. To verify you would need to test on a fully charged battery that was confirmed to be charged with a different charger. If the charge in the battery is too low, the charger doesn't detect it and that could cause the circuit breaker in the battery to trip.
I retested after several days and there is no longer a ticking sound. I believe the battery or charger might have gotten hot enough to change current flow. So, letting both stand for some time likely fixed the issue.
Supporting Documentation
Videos:
Trickle Charger is Making Clicking Noise