Victron Argodiode 80-2AC 2 batteries 80A Isolator
Victron Argodiode 80-2AC 2 batteries 80A Isolator
SKU:792-ARG080201000
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Victron Argodiode 80-2AC Battery Isolator
2 Batteries | 80A Maximum Current | Low Voltage Drop
The Victron Argodiode 80-2AC Battery Isolator is engineered to efficiently charge two independent battery banks from a single power source, such as an alternator or shore charger. Utilising advanced Schottky diode technology, this isolator ensures minimal voltage drop, enhancing charging efficiency and extending battery life.
Designed for robust performance, the Argodiode 80-2AC prevents discharge between battery banks, maintaining the isolation necessary for critical applications in marine, RV, and off-grid systems. It includes a dedicated alternator energize input, crucial for modern alternators that require a B+ voltage to initiate charging.
KEY BENEFIT: Safely charges two battery banks independently with minimal voltage loss.
Key Features
| ▶ Efficient Multi-Battery Charging — Safely charge two independent battery banks from a single alternator or charger. |
| ▶ Schottky Diode Technology — Minimises voltage drop (approx. 0.3V at low current, 0.45V at rated current) for more effective charging. |
| ▶ Alternator Energize Input — Ensures proper charging initiation for alternators requiring a B+ voltage. |
| ▶ Compensation Diode — Allows for a slight increase in alternator output voltage to offset isolator voltage drop. |
| ▶ Robust 80A Rating — Suitable for systems with up to 80 Amps maximum charge current. |
| ▶ Durable Construction — Designed for reliable performance in demanding environments. |
| ▶ 5-Year Manufacturer Warranty — Provides long-term peace of mind. |
Technical Specifications
| Parameter | Value |
|---|---|
| Maximum Charge Current | 80 A |
| Maximum Alternator Current | 80 A |
| Number of Battery Banks | 2 |
| Alternator Energize Input | Yes |
| Voltage Drop (Low Current) | Approx. 0.3 V |
| Voltage Drop (Rated Current) | Approx. 0.45 V |
| Battery Connection | M6 Studs |
| Compensation/Energize Connection | 6.3mm Faston |
| Dimensions (H x W x D) | 60 x 120 x 90 mm |
| Weight | 0.6 kg |
Operating & Performance Notes
| Function | Allows simultaneous charging of two separate battery banks from a single source (e.g., alternator, shore charger) without connecting the banks directly. |
| Voltage Drop | Utilises Schottky diodes to achieve a significantly lower voltage drop compared to standard diode isolators, improving charging efficiency. |
| Alternator Excitation | Includes a dedicated energize input to provide the necessary voltage for alternators that require excitation on the B+ terminal to begin charging. |
| Charge Compensation | Features a compensation diode to slightly raise the alternator's output voltage, counteracting the inherent voltage drop across the isolator diodes. |
Typical Applications
| Application | Description |
|---|---|
| Marine Vessels | Charging engine start and house batteries from a single alternator, ensuring critical engine starting power. |
| RVs & Campervans | Separating leisure batteries from the vehicle's starter battery while charging both from the vehicle's charging system. |
| Off-Grid Systems | Managing charging for multiple battery banks from a single solar charge controller or wind generator. |
| Commercial Vehicles | Ensuring critical auxiliary batteries are charged without affecting the primary starter battery for reliable operation. |
Built-In Protection Functions
The Victron Argodiode 80-2AC is designed with inherent features to safeguard your battery system. It provides essential Battery Isolation to prevent discharge from one battery bank to another, ensuring independent power reserves. The Controlled Alternator Energise input delivers a current-limited signal to alternators, preventing damage during startup. Furthermore, the integrated diodes inherently offer Reverse Current Protection, preventing unwanted current flow back into the charging source.
Common Questions
What is the main purpose of a battery isolator?
A battery isolator allows you to charge multiple battery banks from a single charging source (like an alternator) while keeping the battery banks electrically separate. This prevents one battery from discharging into another, preserving power for critical functions.
How does the Argodiode 80-2AC minimise voltage drop?
It uses advanced Schottky diode technology, which inherently has a lower forward voltage drop compared to standard silicon diodes. This results in more efficient charging, less energy loss, and reduced heat generation.
Why does this isolator have an 'energize input'?
Some modern alternators require a small DC voltage on their B+ output to start charging. The energize input provides this voltage when the engine is running, ensuring the alternator begins to charge the batteries through the isolator.
Can I install this myself?
While the Argodiode is designed for straightforward integration, proper installation is crucial to ensure optimal battery charging and system longevity. It is recommended to consult the official Victron Energy manual or seek advice from a qualified marine or auto electrician.
Installation Notes
- Always refer to the official Victron Energy Argodiode 80-2AC manual for detailed installation instructions and wiring diagrams.
- Ensure all cabling is correctly sized for the maximum current rating (80A) to prevent voltage drop and overheating.
- Properly connect the alternator energize input if your alternator requires it for excitation.
- Consider the compensation diode connection to optimise charging voltage and prevent undercharging.
- Mount the isolator in a cool, dry, and well-ventilated area, away from flammable materials.
Before You Buy
- Verify your alternator's maximum output current does not exceed 80 Amps.
- Confirm you require isolation for exactly two battery banks.
- Check if your alternator requires an energize input for proper operation.
- Ensure you have adequate space for the unit's dimensions (H60 x W120 x D90mm) and access for connections.
- Consult with a qualified installer if you are unsure about system compatibility or installation requirements.
Specifications are subject to change by the manufacturer. Always verify compatibility and installation requirements with the latest product documentation before purchase. Solarika recommends professional installation for all electrical systems.
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