Victron Argofet 100A 3-Battery Marine Isolator

Description

The Victron Argofet 100-3 Battery Isolator provides simultaneous charging for three separate batteries or battery banks from one alternator or a single-output battery charger. It maintains electrical separation between the banks so a discharged accessory battery does not automatically pull down the starting battery when the charging source is inactive.

Argofet isolators use FET technology rather than conventional diodes to reduce charging-voltage loss. Voltage drop is less than 0.02V at low current and averages about 0.1V at higher current, preserving more of the alternator’s available voltage for the batteries. That can support more effective charging, particularly in systems where every fraction of a volt matters to reaching a full state of charge.

This model is rated for 100 amps and three battery outputs. It is suitable for boats with separate starting, house, and accessory banks that need to share a charging source without being permanently connected together.

For three-bank marine charging systems where low voltage loss and battery independence are priorities, the Victron Argofet 100-3 offers a compact solid-state isolation solution. Have a look at the rest of our battery isolators & charging relays.