Victron Argodiode 80-2AC 2 Batteries 80A Isolator
- Brand:
- Victron Energy
- Part no:
- ARG080201000
Where to buy
View on Amazonpaid link
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.

