Ensure the clamps are biting into the metal for a solid connection. Plug the charger into a grounded AC outlet. Common Charging Modes
Exide has sold chargers manufactured by other companies (e.g., Schumacher, CTEK under license). Always verify the (e.g., EX-1260, EX-4A) before downloading a manual, as procedures vary significantly between manual, automatic, and microprocessor-controlled units.