Relay for most 36 Volt Golf Cart Chargers Replacement Relay for  Chargers You’ll know that this part is bad when your charger will not cut on but if you bypass this relay it will turn on and charge. Please see my video below for explanations on symptoms and fixes of these parts. There are no guarantees that these parts are the issue with your charger, yet these are the most common fixes for the Powerdrive 3 charger. If you would rather send us the charger we can Diagnose Send you an Estimate Repair Return your charger