{"product_id":"victron-argofet-200-2-isolator","title":"Victron Argofet 200-2 FET Battery Isolator 200A | ARG200201020R","description":"\u003cp\u003eThe Victron Argofet 200-2 is a FET-based battery isolator switch that charges two separate battery banks from a single alternator or charger, with no voltage drop across the unit. It suits marine, vehicle and off-grid systems where independent battery banks need to stay isolated from each other during discharge while sharing one charging source.\u003c\/p\u003e\u003ch2\u003eKey features of this battery isolator switch\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous current\u003c\/strong\u003e, 200A rating for high-capacity alternators and charging systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFET technology\u003c\/strong\u003e, removes the 0.6V to 0.7V drop found on diode-based isolators, so batteries receive the full charge voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual output\u003c\/strong\u003e, charges two independent battery banks from one input with no cross-discharge between them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow power loss\u003c\/strong\u003e, less heat generated compared with diode isolators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing\u003c\/strong\u003e, aluminium casing suited to engine bays and confined spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e, works with standard alternators and battery chargers, no modification needed to the charging source.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow it works\u003c\/h2\u003e\u003cp\u003eDiode-based isolators typically drop around 0.6V to 0.7V between the charging source and the battery, which leaves batteries chronically undercharged. The Argofet 200-2 uses MOSFET technology instead, so the voltage at each battery terminal matches the alternator or charger output directly. Current flows freely to each bank during charging while reverse current between the two banks is blocked, so a discharged starter battery cannot drain the leisure bank, or vice versa.\u003c\/p\u003e\u003cp\u003eIt's a passive device. No external control wiring is needed in most standard installations, and it responds automatically to charging voltage.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMarine vessels with separate starter and domestic battery banks charged from one alternator.\u003c\/li\u003e\n\u003cli\u003eMotorhomes and campervans needing isolation between the starter battery and habitation bank.\u003c\/li\u003e\n\u003cli\u003eOff-grid vehicles and 4x4 expedition builds with dual battery setups.\u003c\/li\u003e\n\u003cli\u003eCommercial vehicles keeping auxiliary equipment batteries independent from the engine start battery.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e1 x Victron Argofet 200-2 FET battery isolator\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eInstallation notes\u003c\/h2\u003e\u003cp\u003eFit this with a qualified electrician or experienced marine or vehicle electrical installer. Connections must be rated for 200A continuous current, with fusing on the input cable as close to the source as practicable. Mount in a ventilated location away from water ingress; airflow around the unit is still recommended even though heat output is lower than a diode isolator. Check compatibility with your alternator output and battery chemistry before fitting.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":52095397265696,"sku":"ARG200201020R","price":91.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/8148\/1504\/files\/ledandsolar-arg200201020r-1.webp?v=1785748718","url":"https:\/\/www.ledandsolar.co.uk\/products\/victron-argofet-200-2-isolator","provider":"LED \u0026 Solar","version":"1.0","type":"link"}