{"product_id":"dual-battery-isolator-kit-12v-300a-vsr-lcd-voltmeter","title":"Dual Battery Isolator Kit, 12V 300A VSR, LCD Voltmeter","description":"\u003cp\u003eDual battery isolator kit keeps your starter battery protected while reliably charging an auxiliary battery for UTV, ATV, RV, truck, boat, and off-grid setups. The 12V 300A voltage sensitive relay supports lithium and lead-acid batteries, with manual and automatic modes for flexible power control. A dual LCD voltmeter shows both battery voltages in real time, helping you spot issues early and manage loads with confidence in rough outdoor conditions.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eDelivers 300A high-current split charging for dual-battery systems on 12V vehicles and equipment.\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSwitches between Auto and Manual modes to combine batteries when needed for emergency starting support.\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eDisplays dual battery voltage on a bright LCD (4.5–20V) for fast diagnostics and status checks.\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eReduces relay chatter with an adjustable 3–60s delay to help protect isolator and battery lifespan.\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eIncludes heavy-duty 2 AWG copper cables, lugs, heat shrink, and hardware for a clean install.\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003eBuilt for demanding installs, this smart isolator adds overvoltage\/undervoltage protection plus a compact, shock- and dust-resistant housing for consistent power management on trails, worksites, and remote camps. Use it to keep critical electronics running on an auxiliary battery without risking a no-start situation, then combine batteries when conditions call for it. Everything needed for wiring is in the box, making it easier to upgrade your dual-battery system with fewer extra purchases. Grab yours today and set up dependable power where you need it.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eSystem rating: DC 12V, 300A\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eVoltage display range: 4.5V–20V (dual display)\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eDelay time: adjustable 3–60 seconds\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eMain materials: PA6 plastic isolator housing, copper wire\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eIsolator size: 3.5 x 3.5 x 3.1 in (90 x 90 x 80 mm)\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eNet weight (with accessories): 7.3 lb (3.3 kg)\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCable: 20 ft (6 m) 2 AWG red cable; 2 ft (0.6 m) 2 AWG black ground cable\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eIn the box: isolator w\/ mounting screws, 3 copper connectors, 2 heat shrink tubes, 4 cable lugs, 6 zip ties\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"B2X","offers":[{"title":"Default Title","offer_id":55518901961031,"sku":"VEV-009112-B","price":5534.0,"currency_code":"CZK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/5402\/2983\/files\/DualBatteryIsolatorKit12V300AVSRLCDVoltmeterDefaultTitle.jpg?v=1792663289","url":"https:\/\/bluemall.cz\/products\/dual-battery-isolator-kit-12v-300a-vsr-lcd-voltmeter","provider":"Bluemall","version":"1.0","type":"link"}