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Victron Argodiode 80-2SC 2 Batteries 80A


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  • Allows simultaneous charging of multiple batteries from one alternator
  • 80 Amp
  • Suits 12V & 24V systems

Diode battery isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries together. Discharging the accessory battery for example will not result in also discharging the starter battery.

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 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.

Please see a specialist for advice when installing a diode 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 Energise Input:

Some alternators need DC voltage on the B+ output to start charging. DC electricity 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.

More about Victron:

Victron Energy has a strong, unrivalled reputation for technical innovation, reliability, and build quality. Their products are widely considered to be a professional choice for independent electric power. Efficiently combining two or more distinct power sources is what they do best. Their products include sinewave inverters, sinewave inverters/chargers, battery chargers, DC/DC converters, transfer switches, battery monitors and more.

Maximum charge current (A)


Maximum alternator current (A)


Number of batteries


Nominal battery voltage

12V and 24V

Alternator Energize Input



M6 Studs

Compensation diode and Energise connection

6.3 mm Faston




60 x 120 x 75mm


Please see more details in the 'Data Sheets' tab.


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