Description
Victron Argodiode 80A Battery Isolator | Boat Supply Store
Ensure independent battery bank charging from a single alternator without risking discharge of your primary starting battery. This 80A isolator employs high-efficiency Schottky diodes, delivering a minimal voltage drop of approximately 0.45V at rated output, which is critical for maintaining optimal battery health and charge levels. Its specialized 'AC' energize input also ensures compatibility with a broader range of alternators that require a start-up voltage, preventing charging failures common with simpler diode isolators. Ideal for maintaining both house and starting batteries on offshore fishing vessels navigating rough Texas waters.
Key Features
- Prevent parasitic drain between battery banks, preserving critical starting power.
- Achieve simultaneous charging of two independent batteries from one alternator.
- Minimize energy loss with ultra-low voltage drop from advanced Schottky diodes (0.45V @ 80A).
- Maintain full battery capacity with an integrated compensation diode.
- Ensure compatibility with sensitive alternators via the unique 'AC' energize input.
- Rated for robust 80A continuous current draw.
- Support up to two distinct battery banks.
- Benefit from Victron Energy's renowned build quality and reliability.
Specifications
| Product Specifications | |
|---|---|
| Brand | Victron Energy |
| Model | Argodiode 80-2SC |
| Number of Batteries | 2 |
| Maximum Current Rating | 80A |
| Voltage Drop (Low Current) | Approx. 0.3V |
| Voltage Drop (Rated Output) | Approx. 0.45V |
| Diode Technology | Schottky |
| Special Features | Compensation Diode, AC Energize Input |
Who This Is For
Marine vessels and recreational vehicles requiring dedicated charging for multiple battery banks from a single source. Owners seeking to prevent cross-battery discharge and ensure reliable power for both starting and house loads.
How It Compares
| Feature | Victron Argodiode 80A Battery Isolator | Blue Sea Systems ML |
|---|---|---|
| Number of Batteries Supported | 2 | 2, 3 |
| Max Continuous Amperage | 80A | 500A, 100A |
| Voltage Drop (Rated Output) | Approx. 0.45V | Virtually 0V (FET), Approx. 0.7V |
| Technology | Schottky Diode Isolator with Compensation Diode and AC Energize Input | Automatic Charging Relay (FET), Diode Isolator |
Common Concerns Answered
Is installation complicated for a DIY boater?
While installation requires basic knowledge of marine electrical systems, the 'AC' energize input may need specific wiring to the ignition or engine run/stop switch, adding a layer of complexity. However, detailed instructions are available in the manual to guide users through the process.
Will the 80A rating be enough for my high-demand system?
The 80A rating is robust for many standard dual-battery setups. For systems with exceptionally high-draw accessories or multiple high-output devices, a higher amperage isolator might be necessary. Always evaluate your system's peak current demands.
Why is this isolator more expensive than simpler diode isolators?
The Victron Argodiode 80-2SC offers superior performance and advanced features. Its use of high-efficiency Schottky diodes results in a significantly lower voltage drop, and the inclusion of a compensation diode and 'AC' energize input ensures optimal charging and wider alternator compatibility, justifying the investment for reliable power management.
Frequently Asked Questions
What is a battery isolator and why do I need one?
A battery isolator is an electrical device that allows a single alternator to charge multiple batteries independently. You need one to prevent the discharge of one battery bank (e.g., house loads) from affecting the charge level of another (e.g., starting battery), ensuring your engine always has power to start.
How does the Victron Argodiode Battery Isolator 80-2SC work?
It uses diodes to direct alternator output to each battery bank while blocking current flow between them. This ensures each battery receives charge from the alternator without sharing discharge loads, maintaining optimal voltage for each bank.
What is the voltage drop of the Victron Argodiode Battery Isolator 80-2SC?
The voltage drop is approximately 0.3V at low current and increases to about 0.45V at its rated output of 80A. This low drop is a key advantage for efficient charging.
Can I use this isolator with different types of batteries?
The Victron Argodiode is designed to work with most standard lead-acid battery types (flooded, AGM, Gel). Always consult your battery manufacturer's specifications for compatibility with charging systems.
Does the Victron Argodiode Battery Isolator 80-2SC require any special wiring for alternators that need an energize input?
Yes, the 'AC' energize input is designed for alternators requiring a small DC voltage to start charging. This input typically needs to be wired to the ignition switch or engine run/stop signal to prevent return voltage issues and ensure proper alternator activation.
