Victron Argodiode 120-2AC 2 Batteries 120A Isolator
- Brand:
- Victron Energy
- Part no:
- ARG120201020R
Where to buy
Specifications
- Type
- Diode
- Continuous rating
- 120 A
- System voltage
- 12V or 24V
- Battery outputs
- 2
The Argodiode 120-2AC is a diode battery isolator for charging two batteries from one alternator. Each battery is fed without being tied to the other, so draining the accessory battery does not also drain the starter battery. It handles a maximum alternator and charge current of 120 A on 12V or 24V systems. Alternator and battery connections are M8 bolts, and the unit weighs 0.8 kg.
Our take
The 120 A maximum alternator current and the Schottky diodes mean the Argodiode 120-2AC splits one alternator's output between two batteries with low voltage drop. Because 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.