I have a Club Car with 33.6 volts across the bank of batteries. Charger usually will click even if there is not sufficient voltage for it to start charging. The battery charger makes no sound at all and doesn't come on when plugged in. I found wires loose in my 48 volt charger before. This charger has never been moved or touched. I do need new batteries, but at 33.6V it should still be charging and running.