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

With the Victron Argodiode 80-2SC, one alternator can deliver charging current to two battery banks while keeping them electrically separated. The 80A rating defines its maximum intended current capacity. This arrangement is useful when a boat has distinct starter and house batteries.

The isolator relies on high-efficiency Schottky diodes. These provide a smaller voltage drop than older diode arrangements, although a voltage difference still remains. Victron specifies approximately 0.3V at low current and 0.45V at the rated output. This allows the starter and accessory circuits to retain separate discharge paths.

This 80-2SC designation should be matched to the existing installation rather than substituted for the 80-2AC model without checking its terminals. Alternator activation wiring may differ between variants. The battery cabling and voltage-regulation arrangement both affect how well a diode isolator performs in service. Browse more battery isolators and charging relays at CritPro.

• Two-bank alternator charge separation
• 80A current rating
• Low-drop Schottky diodes
• Model-specific SC configuration