Victron Energy Argofet 200-2 Battery Isolator 200A for Two Batteries

The Victron Energy Argofet 200-2 is a high-performance battery isolator engineered to manage the charging of two independent battery banks from a single alternator or battery charger. By utilizing advanced FET (Field Effect Transistor) technology, this device effectively replaces traditional diode-based isolators, which are known for significant voltage drops. The Argofet 200-2 ensures that your batteries receive the full charging voltage, promoting faster and more complete charging cycles while maintaining electrical separation between the banks.

Advantages

The primary benefit of the Argofet 200-2 is its exceptional efficiency. Unlike standard diode isolators that can cause a voltage drop of up to 0.7V, the FET technology used here keeps the voltage drop extremely low, typically below 0.02V at low current and 0.1V at higher currents. This efficiency prevents the alternator from needing to compensate for voltage loss, thereby protecting the alternator and ensuring that batteries are charged to their maximum capacity. Furthermore, the robust design prevents current from flowing back from one battery to another, ensuring that a depleted battery does not drain a fully charged one.

Suitable for

• Marine electrical systems with starter and service batteries
• Camper vans and motorhomes with auxiliary battery setups
• Automotive applications requiring isolated charging for secondary power systems

This isolator may not be suitable for systems where the charging source output is significantly lower than the required input voltage of the batteries, or in extremely high-temperature environments without adequate ventilation. It is also not intended for use in systems where the total charging current consistently exceeds the 200A rating of the device.

Key specifications

• Maximum charging current: 200A
• Number of battery banks: 2
• Technology: FET (Field Effect Transistor)
• Voltage drop: Negligible (low voltage loss)
• Operating temperature range: -40 to +50 degrees Celsius

To install the Argofet 200-2, connect the positive output of your alternator or battery charger to the input terminal of the isolator. Then, connect the positive terminals of your two battery banks to the respective output terminals. Ensure that the common negative connection is maintained throughout the system. The device operates automatically, requiring no manual switching or complex configuration during daily use.

What to consider before purchase

• Verify that your alternator output does not exceed the 200A capacity
• Ensure your cable gauge is appropriate for a 200A current load
• Check that your system voltage matches the device specifications
• Confirm there is sufficient space for mounting and heat dissipation

For optimal performance and safety, always install a fuse on the output lines leading to each battery bank and ensure all connections are tightened to the manufacturer's torque specifications to prevent overheating.