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You are here: Home > Online Shop > Victron > Victron Cyrix Battery Combiner & Diode Isolators > Victron Argo 120A Diode Battery Isolator (120-2AC)

Victron Argo 120A Diode Battery Isolator (120-2AC)

Victron Argo 120A Diode Battery Isolator (120-2AC)
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£63.24 (including 20 % tax)
You Save: £11.16


Diode battery isolators allow simultaneous chargin of two or more batteries from one alternator (or appropriate 12v power source such as a battery charger) 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 approximatley 0.3v and at the rated output approximatley 0.45v. 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.

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 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. This feature does not need to be connected if you dont need it.


  • Maximum charge current: 120A
  • Maximum alternator current: 120A
  • Number of batteries: 2 (separate batteries or banks of)
  • Connection: M8 studs
  • Alternator Energize input: Yes
  • Compensation diode and energize connection: 6.3mm Faston
  • Weight: 0.8kg
  • Dimensions: 60mmH x 120mmW x 115mmD

Please note: The actual product pictured in this listing is the 80A version


Last Updated: Tuesday, 25 October 2016 06:38

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