The Victron ArgoFET Battery Isolator is a high-efficiency dual-battery charging solution that lets you charge two independent batteries from a single source without cross-connection. Designed for marine, RV, automotive, and solar applications, it keeps critical systems powered while preserving starting battery capacity.
-
Current rating: 100 A continuous current capacity to support dual-battery charging from one source.
-
Technology: FET isolator technology with voltage drop less than 0.02 V at low current and around 0.1 V at higher currents.
-
Simultaneous charging: Enables simultaneous charging from one alternator or charger to two independent batteries, without cross-connection.
-
Independent batteries: Keeps batteries electrically independent while sharing a single charging source.
-
Design and compatibility: Efficient, compact design suitable for marine, RV, automotive, and solar applications.
-
Reliability: Backed by reliable Victron Energy engineering for long-lasting performance in demanding environments.
-
What you get: Argo FET Battery Isolator — 100AMP — 2 Batteries; Manufacturer: Victron Energy; Manufacturer Part No: ARG100201020; UPC: 8719076019022; Safety notice: California Prop 65 warning.
With its low voltage drop and fast response compared with diode-based isolators, the ArgoFET minimizes energy loss and keeps essential systems powered while preserving starting battery capacity. The 100 A continuous rating supports dependable dual-battery charging from a single alternator or charger, and its compact, rugged form is ready for harsh marine, automotive, and off-grid environments.
