04-10-14, 10:00 AM
I have an Optimate charger and that needs a load on it to operate properly I should think the optimiser is the same, put a meter across the connectors with no load on it and no voltage is being put out by the charger. Connect the charger to the battery, set your multimeter to Volts DC then put it across the battery terminals, should show around 13/14 volts.