Victron Energy Argodiode Battery Isolator 80-2SC - 80 Amp Dual Battery Separator

Argodiode Battery Isolator 80-2SC - 2 Batteries - 80A

Argodiode Battery Isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries. Discharging the accessory battery for example will not result in also discharging the starter battery. Low voltage drop due to the use of high-efficiency Schottky diodes.

The Argo Battery Isolators feature a low voltage drop thanks to the use of Schottky diodes: at low current, the voltage drop is approximately 0,3 V, and at the rated output of approximately 0,45 V. All models are fitted with a compensation diode that can be used to slightly increase the output voltage of the alternator. This compensates for the voltage drop over the diodes in the isolator.

Simply inserting the isolator in the cabling between the alternator and the batteries will slightly reduce charge voltage. The result can be that batteries are not charged to the full 100% and age prematurely.

Alternator energize input

Some alternators need DC voltage on the B+ output to start charging. Obviously, DC will be present when the alternator is directly connected to a battery. Inserting a Diode or FET splitter will however prevent any return voltage/current from the batteries to the B+, and the alternator will not start. The new AC diode isolators feature a special current limited energize input that will power the B+ when the engine run/stop switch is closed.

The Victron Energy Argodiode Battery Isolator 80-2SC is designed to enable the simultaneous charging of two batteries from a single alternator without direct electrical connection between the batteries. This setup prevents the discharge of your starter battery when accessory batteries are in use, ensuring reliable power management for your vehicle or marine application. Constructed with high-efficiency Schottky diodes, it offers a low voltage drop, approximately 0.3 volts at low current and about 0.45 volts at maximum rated output, minimizing energy loss during operation. All units include a compensation diode that can be used to slightly boost the alternator's output voltage, compensating for voltage drops across the diodes and maintaining optimal charging efficiency. Installing this isolator between the alternator and your batteries ensures proper charge distribution without over-discharge risks, although it may slightly reduce the overall charge voltage, potentially affecting full battery capacity and lifespan over time. The device features a specialized energize input that requires DC voltage to activate the charging process, which is especially useful for alternators needing a B+ signal to start charging. This input ensures that the alternator begins charging when the engine run/stop switch is engaged, preventing issues with the starting system. Whether for automotive, RV, or marine applications, the Victron Argodiode isolator provides a dependable and efficient solution for managing multiple batteries while maintaining system stability and performance.

Features:

• Designed for dual battery applications, supporting up to two batteries simultaneously

• Maximum current capacity of 80 amps ensures reliable power transfer

• High-efficiency Schottky diodes reduce voltage drop, improving charge efficiency

• Includes a compensation diode to optimize alternator output voltage

• Equipped with a specialized energize input to ensure proper activation with various alternator types

• Compact design suitable for installation in tight spaces

• Easy to install with straightforward cabling connections

• Durable construction suitable for demanding automotive and marine environments