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

Brand:
Victron Energy
Part no:
ARG080202000

Where to buy

Specifications

Type
Diode
Continuous rating
80 A
System voltage
12V or 24V
Battery outputs
2

The Argodiode 80-2SC is a Victron Energy diode battery isolator for charging two batteries from one alternator. It works on 12 V or 24 V systems and its part number is ARG080202000. It handles up to 80 A of alternator current and charge current. Schottky diodes keep the voltage drop low, and discharging the accessory battery does not discharge the starter battery. Connections are M6 bolts, and the unit weighs 0.5 kg.

Our take

Two battery outputs fed from one alternator, with diodes between them, means a flat house battery cannot pull down the starter battery. The 80 A alternator current rating is the figure to check against your alternator before fitting it.

From our buying guide

NMMA says not to mix battery chemistries or types in the same bank, and the makers add their own limits.

Check before you buy:

  • Each maker sets its own alternator rules. Battle Born calls a DC-to-DC charger a simple and safe way to use alternator charging.
  • Battle Born warns that a BMS shutdown leaves the vessel without power, and that one during alternator charging can severely damage the alternator.
  • Ignition protection on a charger or switch is the maker's statement, so read what it says and which standard it names.

Sources