{"product_id":"victron-argofet-200-2-battery-isolator-200a-2-batteries","title":"Victron Argofet 200-2 Battery Isolator — 200A for 2 Batteries (Zero Voltage Drop)","description":"\u003cp\u003e\u003cstrong\u003eThe Victron Argofet 200-2 is a FET-based battery isolator that charges two separate battery banks from a single alternator\u003c\/strong\u003e — with virtually zero voltage drop and no parasitic draw between banks. The right pick for boats and RVs with separate starter and house banks where you want simple alternator charging without a DC-DC charger.\u003c\/p\u003e\n\n\u003ch2\u003eHow an Argofet works\u003c\/h2\u003e\n\u003cp\u003eTraditional diode-based isolators lose ~0.7V across each diode — enough to prevent a lead-acid bank from reaching full charge. FET-based isolators (Argofet) use MOSFET transistors instead, dropping voltage by only ~0.02V at full load. That difference matters: your house bank actually gets to absorption voltage instead of sitting at 13.7V indefinitely.\u003c\/p\u003e\n\u003cp\u003eArgofet also blocks current between banks, so a deeply discharged house bank can't drain your starter battery when the engine is off.\u003c\/p\u003e\n\n\u003ch2\u003eArgofet vs DC-DC Charger — which one?\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eArgofet 200-2 (this product)\u003c\/th\u003e\n\u003cth\u003eOrion-Tr Smart DC-DC Charger\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLithium-safe\u003c\/td\u003e\n\u003ctd\u003eNo — not for lithium house banks\u003c\/td\u003e\n\u003ctd\u003eYes — current-limited for alternator safety\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eVoltage drop\u003c\/td\u003e\n\u003ctd\u003e~0.02V (effectively zero)\u003c\/td\u003e\n\u003ctd\u003eSlight (charge voltage regulated)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBattery chemistry matching\u003c\/td\u003e\n\u003ctd\u003eSame chemistry both banks\u003c\/td\u003e\n\u003ctd\u003eDifferent chemistry on each end OK\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAlternator compatibility\u003c\/td\u003e\n\u003ctd\u003eStandard alternators only\u003c\/td\u003e\n\u003ctd\u003eWorks with smart\/regulated alternators too\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCost\u003c\/td\u003e\n\u003ctd\u003e$119.85\u003c\/td\u003e\n\u003ctd\u003e$215.05–$243.95\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eLead-acid start + lead-acid house\u003c\/td\u003e\n\u003ctd\u003eLithium house bank, modern vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eChoose Argofet if:\u003c\/strong\u003e both banks are lead-acid\/AGM (same chemistry), you have a standard (non-smart) alternator, and you want a low-cost, simple solution.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose DC-DC Charger if:\u003c\/strong\u003e you have a lithium house bank, you have a smart alternator (Euro 6, etc.), or you want proper 3-stage charge management.\u003c\/p\u003e\n\n\u003ch2\u003eWhy the Argofet 200-2\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e200A total capacity\u003c\/strong\u003e — handles full alternator output for most marine\/RV applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2 output banks\u003c\/strong\u003e — starter + house from single alternator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZero voltage drop\u003c\/strong\u003e — ~0.02V vs 0.7V on traditional diode isolators\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo parasitic draw\u003c\/strong\u003e — banks are electrically isolated when engine is off\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorks on 12V or 24V\u003c\/strong\u003e systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo external power needed\u003c\/strong\u003e — passive operation\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eCompact and robust\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e5-year warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eBattery voltage\u003c\/th\u003e\n\u003ctd\u003e12V or 24V (alternator output)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMax continuous current\u003c\/th\u003e\n\u003ctd\u003e200A total\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eNumber of output banks\u003c\/th\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eVoltage drop at full load\u003c\/th\u003e\n\u003ctd\u003e~0.02V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eReverse current protection\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSelf-consumption\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-40°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eEnclosure rating\u003c\/th\u003e\n\u003ctd\u003eIP21 (indoor \/ dry mounting)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eManufacturer SKU\u003c\/th\u003e\n\u003ctd\u003eARG200201020\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e5 years (manufacturer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eRecommended applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoat with starter + house (both lead-acid)\u003c\/strong\u003e — simple alternator charging of both\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRV with chassis + house (both lead-acid)\u003c\/strong\u003e — budget alternative to DC-DC charger\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTow vehicle to trailer (lead-acid both)\u003c\/strong\u003e — trailer house bank charges while driving\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOlder vehicle without smart alternator\u003c\/strong\u003e — standard alternator works perfectly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine commercial\u003c\/strong\u003e — simple, no-fail isolation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBackup gen-start systems\u003c\/strong\u003e — isolate generator starter from main bank\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eEvery Jonsson Tech order ships within 5 days nationwide from our Houston, Texas warehouse.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":46106647920859,"sku":"ARG200201020","price":119.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/3200\/9947\/files\/argofet.jpg?v=1728467875","url":"https:\/\/www.jonssontech.net\/products\/victron-argofet-200-2-battery-isolator-200a-2-batteries","provider":"Jonsson Tech LLC ","version":"1.0","type":"link"}