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Victron Argodiode 80-2AC 2 Batteries 80A Isolator

Brand:
Victron Energy
Part no:
ARG080201000

Where to buy

Specifications

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

The Argodiode 80-2AC is a diode battery isolator for charging two batteries from one alternator. The batteries are never connected together, so draining the accessory battery does not also drain the starter battery. It is rated for a maximum alternator and charge current of 80 A on 12V or 24V systems. Battery and alternator connections are M6 bolts, and the unit weighs 0.6 kg.

Our take

The Argodiode 80-2AC takes up to 80 A from the alternator and shares it between two batteries through Schottky diodes with low voltage drop. Since the batteries are never joined, running down the house bank leaves the starter battery alone.

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