Description
xVictron Argodiode 100-3AC Battery Isolator 3 Batteries 100A
The Victron Argodiode 100-3AC is a diode-based battery isolator designed to charge up to three separate battery banks simultaneously from a single alternator or charger source, without allowing any bank to discharge into another. It is suited to marine, vehicle and off-grid applications where independent battery banks must be maintained in isolation.
Key Features
- Isolates up to three battery banks from a single charging source, preventing cross-discharge between banks.
- 100A continuous current rating across three outputs (3AC configuration).
- Diode-based isolation requires no active switching or control wiring, making installation straightforward.
- Aluminium heatsink body dissipates heat generated by the diode voltage drop during charging.
- Compact and robust construction suitable for permanent installation in vehicles, vessels and off-grid enclosures.
- Compatible with standard alternator and battery charger outputs without requiring additional control signals.
Product Overview
The Argodiode 100-3AC uses Schottky diodes to split a single charging input across three battery outputs. Current flows freely from the charger or alternator to each battery bank, but the diodes block any reverse flow, so a depleted bank cannot draw from a charged one. This is the fundamental advantage of diode isolation over simple paralleling or relay-based systems: no control logic is needed and isolation is always maintained regardless of load conditions.
The trade-off with diode isolators is a voltage drop of approximately 0.5V to 0.7V across the diodes. In practice, this means the battery banks will charge to a slightly lower terminal voltage than the source output. Where this matters, the alternator regulator or charger output voltage should be set 0.5V to 0.7V higher than normal to compensate. This is a standard consideration for any diode isolator installation and should be factored in during commissioning.
The 100A rating applies to the total input current. With three outputs, the current is distributed across the banks according to their state of charge. The aluminium body acts as the heatsink and must be mounted to a surface that allows adequate heat dissipation, particularly at sustained high charge currents.
Specifications
- SKU: ARG100301000R
- Configuration: 1 input, 3 outputs (3AC)
- Maximum input current: 100A
- Number of battery banks: 3
- Weight: 0.8 kg
- GTIN: 8719076019046
Applications
- Marine installations requiring separate starter, domestic and bow thruster battery banks charged from a single alternator.
- Motorhomes and campervans with split habitation and engine start battery systems plus an auxiliary bank.
- Off-grid cabins or vehicles where multiple battery banks serve different loads and must remain isolated.
- Commercial vehicles with auxiliary equipment requiring a dedicated battery bank independent of the starter battery.
What Is Included
- 1 x Victron Argodiode 100-3AC diode battery isolator
Installation Notes
The Argodiode must be mounted on a thermally conductive surface to allow heat dissipation from the aluminium body. Ensure all cabling is correctly rated for the maximum current and that appropriate fusing is fitted on the input feed. Account for the diode voltage drop when setting the charge source output voltage. Installation should be carried out by a qualified electrician or marine electrical engineer familiar with multi-bank charging systems. For marine installations, follow the relevant BMEA or IEC wiring standards applicable to the vessel.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.