Schauer JAC0524 Charger: 24 Volt, 5 Amp with Ring Terminals Aluminum-cased 24 Volt, 5 Amp Battery Charger with Ring Terminals Input Voltage: 115 VAC Charge control: Starts with a modified constant current charge, then to a constant finishing voltage, finishing with it's float standby mode. Current limiting. Fully Automatic: This charger can be left on the battery indefinitely without overcharging.