Victron Argofet 100/3 Battery Isolator 12/24 V

Ultraflex Argo-1003 FET is an advanced battery isolator designed for power systems in vehicles, boats, campers, and off-grid installations where independent charging and separation of up to three batteries is required while maintaining maximum efficiency and safety. The device uses FET (Field Effect Transistor) technology, which minimizes voltage drops during charging, providing nearly full charging voltage to each battery. This results in faster and more efficient charging, extending battery life. The isolator allows simultaneous charging of three independent battery banks from a single source (e.g., alternator or charger), eliminating the risk of mutual battery discharge. Installation is simple—requiring connection of power cables to the appropriate input and output terminals according to the manufacturer's instructions. The housing is highly resistant to external factors, allowing installation in harsh environmental conditions, and its compact dimensions facilitate integration with existing electrical systems. The product is used wherever reliability and power supply safety are critical—in professional yacht systems, specialized vehicles, and complex emergency power systems.

Technical specifications:

Number of supported batteries: 3

Maximum continuous current: 100 A

Technology: FET (field-effect transistors)

Voltage drop: very low (typically <0.4 V)

Operating voltage: 12 V / 24 V DC (automatic detection)

Input/output terminals: M8 screws

Housing: anodized aluminum

Cooling: passive (heatsink)

Dimensions: approx. 200x140x60 mm

Weight: approx. 1.5 kg

Protection rating: IP22

Operating temperature: -20°C to +60°C

Mounting: wall or plate

Compatibility: standard and smart alternators (additional D+ connection required)

Package contents: isolator, installation manual

Product advantages:

- Enables simultaneous charging of three batteries from one source without risk of mutual discharge - Minimal voltage drop thanks to FET technology, ensuring efficient charging - Extends battery life through optimal charging management - Compatible with standard and smart alternators - Robust, corrosion-resistant aluminum housing - Easy installation with clear terminals and compact dimensions - No mechanical parts – higher reliability and no maintenance required - Protection against overvoltage and reverse polarity - Operates in a wide temperature range - Complies with marine and vehicle installation requirements - Quiet operation – no fans or moving parts

Additional information:

Manufacturer: Ultraflex

SKU: 64990E

Model/Series: Argo-1003 FET

Number of supported batteries: 3

Country of origin: Italy

Manufacturer part number: Argo-1003 FET

Installation note: for alternators with voltage regulation, D+ wire connection is required

Year of introduction: 2022