{"product_id":"victron-argofet-100-3-fet-battery-isolator","title":"Victron Argofet 100-3 Three batteries 100A - ARG100301020","description":"\u003ch1 style=\"color: #f87c24;\"\u003eVictron Argofet 100-3 Battery Isolator, Three Batteries, 100A\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron Argofet 100-3 is a FET-based battery isolator designed to charge up to three separate battery banks simultaneously from a single alternator or charger, with no voltage drop penalty. It is suited to marine, vehicle and off-grid installations where independent battery banks must be kept isolated from one another while sharing a common charge source.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCharges three independent battery banks from a single input, with full isolation between banks so a discharged bank cannot draw from another.\u003c\/li\u003e\n  \u003cli\u003eFET (Field Effect Transistor) technology eliminates the 0.6V to 0.7V voltage drop associated with traditional diode-based isolators, preserving full charge voltage to each bank.\u003c\/li\u003e\n  \u003cli\u003e100A continuous current rating across the combined output.\u003c\/li\u003e\n  \u003cli\u003eAlternator protection circuit prevents voltage spikes if the unit is disconnected under load.\u003c\/li\u003e\n  \u003cli\u003eCompact, robust aluminium housing suitable for installation in engine bays and confined spaces.\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard 12V and 24V systems.\u003c\/li\u003e\n  \u003cli\u003eSKU: ARG100301020 | Weight: 1.462 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eTraditional diode isolators introduce a voltage drop of around 0.6V to 0.7V on every charge path. Over a long charge cycle, this means battery banks never reach their full charge voltage, which shortens battery life and reduces usable capacity. The Argofet 100-3 uses MOSFET technology to eliminate this drop, so each connected bank receives the full output voltage from the alternator or charger.\u003c\/p\u003e\n\n\u003cp\u003eThe unit supports three output banks from a single input, making it well suited to installations with a starter battery, a domestic or auxiliary bank, and a third bank for a bow thruster, generator start, or additional load. Each output is fully isolated, meaning a deeply discharged bank cannot pull down the voltage on the others. The built-in alternator protection circuit is an important practical detail: disconnecting a battery from a running alternator can cause a damaging voltage spike, and this circuit suppresses that risk.\u003c\/p\u003e\n\n\u003cp\u003eAt 100A, the Argofet 100-3 covers the majority of single-alternator marine and vehicle installations. The aluminium housing dissipates heat effectively and is compact enough to fit in tight engine compartments. No external cooling fan is required under normal operating conditions.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eModel: Argofet 100-3\u003c\/li\u003e\n  \u003cli\u003eSKU: ARG100301020\u003c\/li\u003e\n  \u003cli\u003eNumber of battery outputs: 3\u003c\/li\u003e\n  \u003cli\u003eMaximum continuous current: 100A\u003c\/li\u003e\n  \u003cli\u003eCompatible system voltages: 12V and 24V\u003c\/li\u003e\n  \u003cli\u003eTechnology: MOSFET FET isolator (near-zero voltage drop)\u003c\/li\u003e\n  \u003cli\u003eWeight: 1.462 kg\u003c\/li\u003e\n  \u003cli\u003eGTIN: 8719076019053\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMarine vessels with separate starter, domestic and thruster battery banks charged from a single alternator.\u003c\/li\u003e\n  \u003cli\u003eMotorhomes and campervans requiring isolation between the vehicle starter battery and one or more leisure banks.\u003c\/li\u003e\n  \u003cli\u003eOff-grid vehicles or plant equipment with multiple battery banks serving different loads.\u003c\/li\u003e\n  \u003cli\u003eAny installation where a single charger or alternator must feed three banks without cross-discharge between them.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Victron Argofet 100-3 FET battery isolator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eInstallation should be carried out by a qualified auto-electrician or marine electrician familiar with high-current DC systems. Ensure all connections are correctly torqued and that appropriate fusing is fitted on each output cable close to the battery terminals. The unit must be mounted to a surface that allows adequate heat dissipation. Do not disconnect battery banks from the unit while the alternator is running, even though the built-in protection circuit reduces spike risk. Verify system voltage compatibility (12V or 24V) before installation.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":59866748223822,"sku":"ARG100301020","price":84.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/VoltaconSolar_-_ARG100301020_-_Argofet_100-3_Three_batteries_100A.webp?v=1781200252","url":"https:\/\/voltaconsolar.com\/products\/victron-argofet-100-3-fet-battery-isolator","provider":"VoltaconSolar","version":"1.0","type":"link"}