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Deal.ai › Victron Energy

Victron Energy

Victron Energy Argo FET Battery Isolator

Victron Energy Argo FET Battery Isolator

4.7(29 ratings)

Best price now

$95.88at VoltaicoChecked Nov 3

20% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

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Price facts

Last seen at $95.88 at Voltaico on Nov 3.
Checked at 13 stores.

Our take on the Victron Energy Argo FET Battery Isolator

The Victron Argo FET is a solid-state battery isolator that lets one alternator or single-output charger charge two battery banks at once without tying them together. Unlike diode isolators, its FET design has virtually no voltage drop, so the batteries see close to the full charging voltage. The 200A rating suits a single alternator feeding a start battery and a house bank on a boat, camper or overland vehicle. It is a fit-and-forget component rather than a gadget: buyers choose it for the low loss and Victron's reputation, and it is a simpler, cheaper route than a DC-DC charger when both banks are the same chemistry.

Best forBoats with a start battery and a house bankCampers and overland rigs charging two banks from one alternatorOwners upgrading from a diode isolator to cut voltage lossSingle-output chargers feeding two battery sets

Pros

Virtually no voltage drop, unlike diode isolators
200A continuous rating covers most single-alternator setups
Charges two banks simultaneously without joining them
Compact, sealed solid-state build with no moving parts
Simple three-terminal wiring

Cons

Only works with banks of the same chemistry and similar charge profile
No smart charging, profiling or Bluetooth monitoring
Needs adequate heatsinking and correct cable sizing
Not a substitute for a DC-DC charger with different battery types

Victron Energy Argo FET Battery Isolator prices at every store

VoltaicoNew
Availability unknown
$95.88Checked Nov 3
Visit Voltaico
eMarineNew
Availability unknown
$100.30Checked Nov 3
Visit eMarine
Blue MarineNew
Availability unknown
$119.85Checked Nov 3
Visit Blue Marine
Intelligent ControlsNew
Availability unknown
$119.85Checked Nov 3
Visit Intelligent Controls
Marine Parts SourceNew
Availability unknown
$119.85Checked Nov 3
Visit Marine Parts Source
Inverter Service CenterNew
Availability unknown
$119.85Checked Nov 3
Visit Inverter Service Center
AhoyCaptain.comNew
Availability unknown
$119.85Checked Nov 3
Visit AhoyCaptain.com
Water Yacht SolutionsNew
Availability unknown
$119.85Checked Nov 3
Visit Water Yacht Solutions
West MarineNew
Availability unknown
$119.99Checked Nov 3
Visit West Marine
ProPride HitchNew
Availability unknown
$120.00Checked Nov 3
Visit ProPride Hitch
The Harbour ChandlerNew
Availability unknown
$122.43Checked Nov 3
Visit The Harbour Chandler
Nomadic Supply CompanyNew
Availability unknown
$141.00Checked Nov 3
Visit Nomadic Supply Company
WalmartNew
Availability unknown
$142.80Checked Nov 3
Visit Walmart

Victron Energy Argo FET Battery Isolator price history

Lowest price we've seen: $95.88 on Nov 3 at Voltaico. Tracked across 13 stores since Nov 3.

What reviewers say

4.7 / 529 ratings

Rated 4.7 out of 5 from 29 ratings, buyers are positive about the low voltage loss and straightforward install. Complaints are few and mostly about wiring care and heat.

What people mention

Voltage lossPraisedOwners say the batteries charge at close to alternator voltage, unlike with diode isolators.
InstallationPraisedBuyers describe the three-terminal wiring as quick and easy.
Build qualityPraisedOwners rate the sealed Victron construction as solid and reliable.
HeatMixedSome note the unit warms up under load and needs ventilation.
WiringCriticisedA few buyers found the connections easy to get wrong without a clear diagram.

From Voltaico

Victron Argofet 200-2 battery isolator for two batteries
200A rated
Retail version, SKU ARG200201020R
In stock

In the box: Victron Argofet 200-2 Two Batteries 200A Retail

About the Victron Energy Argo FET Battery Isolator

The Victron Energy Argo FET Battery Isolator charges two batteries at the same time from one alternator or a single-output battery charger. It does this without connecting the batteries to each other. It is rated for 200A.

Like a diode isolator, it keeps the batteries separate while both charge.

Model: Argofet 200-2
Batteries: 2
Current rating: 200A
Version: Retail
SKU: ARG200201020R
In the box: Victron Argofet 200-2 battery isolator for two batteries, 200A, Retail

Questions and answers

How is this different from a diode isolator?: It uses FETs instead of diodes, so there is virtually no voltage drop between the alternator and the batteries. A diode isolator loses roughly half a volt to a volt, which slows charging.
Can it charge two different battery types?: Only if both banks use the same chemistry and a similar charge profile. It splits one charge source; it does not regulate each bank separately.
Do I need a DC-DC charger instead?: If your banks are different chemistries, such as lithium house and lead-acid start, a DC-DC charger is the better fit. The Argo FET suits matched banks.
What is in the box?: The retail version ships as the Argofet 200-2 unit for two batteries, rated 200A, SKU ARG200201020R. Cables and fuses are not included.
Does it need cooling?: It is a passive solid-state device that warms under load, so mount it where air can circulate and keep cable runs short and correctly sized.
Can I use it with a single-output battery charger?: Yes. It works with an alternator or a single-output charger to feed two banks at once.
Where is the Victron Energy Argo FET Battery Isolator cheapest?: At Voltaico, for $95.88, 20% under what the other stores charge, as of our latest check.
What do buyers say about the Victron Energy Argo FET Battery Isolator?: Rated 4.7 out of 5 from 29 ratings.
Where can I buy the Victron Energy Argo FET Battery Isolator?: 13 stores we checked sell it, including Voltaico, eMarine, Blue Marine, Intelligent Controls, Marine Parts Source.

Stores we've priced the Victron Energy Argo FET Battery Isolator at

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