Victron Argodiode 80-2AC 80A Dual-Battery Isolator

The Victron Argodiode 80-2AC distributes alternator charging to two battery banks without directly tying those banks together. It is rated at 80A and is suited to installations with separate starting and accessory batteries. Drawing power from the accessory bank will not directly discharge the starting bank through the isolator.

Schottky diodes reduce the voltage loss associated with conventional diode-based isolators. Victron lists a drop of approximately 0.3V at low current and 0.45V around rated output. A compensation diode can help address the charging-voltage reduction in suitable alternator arrangements. Separating the banks helps preserve starting capacity when the house battery is being used.

The 80-2AC is identified as the AC configuration with an alternator energize input. Certain alternators need a voltage signal on the B+ terminal before they begin charging, and this version provides for that connection. Confirm alternator wiring and battery-bank current requirements before replacing another isolator model. Browse more battery isolators and charging relays at CritPro.

• Charges two separate battery banks
• 80A rated isolator
• Schottky diode design
• Alternator energize input on AC version