Victron Argo FET Isolator 100-3 3 Batteries 100 A
Low-loss 100 A FET isolator for 3 battery banks, with an alternator-energize input and virtually no charging-voltage loss.
SKU VIC-ARG100301020R
- Product type
- Battery isolator
- Series
- Argo FET
- Technology
- FET
- Current rating
- 100 A
- Battery banks
- 3
- Alternator energized
- Yes — B+ excitation input
- Voltage compensation
- Normally not required
- Amperage
- 100 A
Stocked items typically ship the next business day from our US warehouse. 30-day returns on unused stocked items. Exclusions apply. Return policy · Shipping policy
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About this product
Victron Argo FET Isolator 100-3 3 Batteries 100 A charges separate battery banks from one alternator while keeping the banks electrically separated from one another.
FET technology produces a much smaller voltage drop than a conventional diode isolator, helping preserve charging voltage at the batteries. The energize input supports alternators that need voltage at their output connection before they start charging.
Key features
- Low-loss FET battery isolation
- Separate outputs for the number of battery banks identified in the model name
- Alternator energize input for compatible alternators
Use adequately sized, short charging cables and follow the manufacturer's alternator-connection instructions.
Product details
- Product type
- Battery isolator
- Series
- Argo FET
- Technology
- FET
- Current rating
- 100 A
- Battery banks
- 3
- Alternator energized
- Yes — B+ excitation input
- Voltage compensation
- Normally not required
- Amperage
- 100 A
- Function
- Battery Isolator
- Voltage Drop
- <0.02 V low current; ~0.1 V average high current
- Selection Note
- Lowest voltage loss; use energize input for alternators requiring B+ excitation
- Product Dimensions
- 65 × 120 × 200 mm (H × W × D)
- Product Net Weight
- 1.4 kg
- Alternator Energize Input
- Yes
- Dimensions (H × W × D)
- 65 × 120 × 200 mm
- Weight
- 1.4 kg
Shipping & returns
- Stocked items typically ship the next business day from our US warehouse.
- 30-day returns on unused stocked items. Exclusions apply. See policy
- Custom and quoted items are non-returnable once production begins.
Warranty
Backed by the original manufacturer’s warranty plus our workmanship guarantee on assembled harnesses. Contact us with your invoice and we’ll coordinate any covered repair or replacement.
Read the full warranty termsTechnical support
Need help choosing the right part?
Our marine electrical team can review your setup and recommend compatible products. Send a photo, a sketch, or your circuit list and we'll come back with a parts list that fits the boat.
Certifications & training
- ABYC-aware build practices
- OEM-grade marine wire & terminals
Additional capabilities are based on hands-on experience building marine wiring systems rather than third-party certification.
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Why buy from Common Ground Marine
- 20+ years building marine wiring harnesses, panels, and shore-power systems.
- Engineers — not a phone tree — review every custom build before parts are cut.
- OEM-grade components: tinned copper, sealed connectors, marine-rated jackets.