{"product_id":"limitless-lithium-ll-ir500a-500a-isolation-relay-high-current-dual-battery-isolator","title":"Limitless Lithium LL-IR500A 500A Isolation Relay – High-Current Dual Battery Isolator","description":"\u003cdiv class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 not-first:mt-4\"\u003e\n\u003cdiv class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\"\u003e\n\u003cdiv class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"https:\/\/cdn11.bigcommerce.com\/s-746gclh\/images\/stencil\/1024x1024\/products\/3331\/19194\/image__18689.1685476532.png?c=2\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/tse3.mm.bing.net\/th\/id\/OIP.NCyvW90vTpHaagSSMvOuQQHaHa?r=0\u0026amp;w=474\u0026amp;h=379\u0026amp;c=7\u0026amp;p=0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\"\u003e\n\u003cdiv class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"https:\/\/cdn11.bigcommerce.com\/s-h3htvj6\/images\/stencil\/1280x1280\/products\/13064\/77730\/IR500A-003__98333__34895.1709245316.jpg?c=2\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/tse4.mm.bing.net\/th\/id\/OIP.xbsUy7NvsbKYko1nD0LlVwHaHa?r=0\u0026amp;w=474\u0026amp;h=379\u0026amp;c=7\u0026amp;p=0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"\"\u003eLimitless Lithium 500A Isolation Relay – LL-IR500A\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLimitless Lithium LL-IR500A 500A Isolation Relay\u003c\/strong\u003e is a high-current battery isolator designed for powerful car audio electrical systems using a \u003cstrong\u003esecondary battery\u003c\/strong\u003e. With a \u003cstrong\u003e500-amp contact rating\u003c\/strong\u003e, this relay allows the secondary battery system to connect when the vehicle is running and remain separated when the ignition is off, helping prevent unwanted battery drain. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt's an excellent solution for high-power car and truck audio builds where you need to isolate a \u003cstrong\u003elithium auxiliary battery from another battery chemistry\u003c\/strong\u003e while maintaining a high-current charging connection when the vehicle is running. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e⚡ 500-AMP HIGH-CURRENT CAPABILITY\u003c\/h2\u003e\n\u003cp\u003eThe LL-IR500A features a \u003cstrong\u003e500A contact rating\u003c\/strong\u003e, making it suitable for demanding automotive electrical and car-audio applications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor high-output systems running powerful amplifiers, subwoofers and secondary batteries, the relay provides a controlled high-current connection between battery systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e500A CONTACT RATING • HIGH-CURRENT DESIGN • SECONDARY BATTERY ISOLATION\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e🔋 IDEAL FOR DUAL-BATTERY CAR AUDIO SYSTEMS\u003c\/h2\u003e\n\u003cp\u003eThe Limitless Lithium 500A relay is specifically designed to help integrate \u003cstrong\u003esecondary batteries\u003c\/strong\u003e into an electrical system.\u003c\/p\u003e\n\u003cp\u003eWhen wired to operate with the ignition:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIgnition ON → Relay activates and connects the battery systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIgnition OFF → Relay separates the battery systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKeeping the batteries isolated with the vehicle off helps prevent the secondary electrical system from draining the primary battery. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e🔥 SEPARATE LITHIUM FROM OTHER BATTERY CHEMISTRIES\u003c\/h2\u003e\n\u003cp\u003eOne of the most important features of the \u003cstrong\u003eLL-IR500A\u003c\/strong\u003e is its ability to provide high-current separation when using a \u003cstrong\u003elithium battery with another battery chemistry\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eLimitless Lithium specifically describes the relay as having high-current capability for separating lithium batteries from batteries using other chemistries. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat makes it especially useful for custom car-audio electrical systems where the starting battery and secondary audio battery are different types.\u003c\/p\u003e\n\u003ch2\u003e🚗 WORKS WITH DIFFERENT CHARGING SYSTEMS\u003c\/h2\u003e\n\u003cp\u003eLimitless Lithium states that the LL-IR500A is \u003cstrong\u003ecompatible with all types of alternators and charging systems\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis makes it a versatile electrical component for custom installations in:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCars • Trucks • SUVs • Custom Car Audio Builds • High-Power Amplifier Systems • Dual-Battery Systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProper installation, wire gauge and circuit protection should always be selected according to the actual current requirements of the electrical system.\u003c\/p\u003e\n\u003ch2\u003e💪 WATER-RESISTANT PHENOLIC CONSTRUCTION\u003c\/h2\u003e\n\u003cp\u003eThe relay uses a \u003cstrong\u003ewater-resistant black phenolic plastic housing\u003c\/strong\u003e designed for automotive environments.\u003c\/p\u003e\n\u003cp\u003eLimitless Lithium also specifies a \u003cstrong\u003e100,000 mechanical-cycle life\u003c\/strong\u003e, providing a durable solution for repeated switching between connected and isolated battery states. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003eKEY FEATURES\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e500A contact rating\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eHigh-current battery isolation relay\u003c\/li\u003e\n\u003cli\u003eDesigned for secondary battery installations\u003c\/li\u003e\n\u003cli\u003eSeparates battery systems while ignition is off\u003c\/li\u003e\n\u003cli\u003eHelps prevent unwanted battery-system drain\u003c\/li\u003e\n\u003cli\u003eSuitable for separating lithium from other battery chemistries\u003c\/li\u003e\n\u003cli\u003eWater-resistant black phenolic plastic construction\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e100,000 mechanical-cycle life\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCompatible with all types of alternators and charging systems\u003c\/li\u003e\n\u003cli\u003eIdeal for high-power car-audio electrical systems\u003c\/li\u003e\n\u003cli\u003eHeavy-duty mounting bracket\u003c\/li\u003e\n\u003cli\u003eModel \u003cstrong\u003eLL-IR500A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese core features are confirmed by Limitless Lithium's current product information. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eLimitless Lithium LL-IR500A\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLimitless Lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eLL-IR500A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBattery Isolation Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e500 Amps\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecondary \/ Dual Battery Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWater-Resistant Black Phenolic Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Cycle Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e100,000 Cycles\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnition Controlled\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes – when properly wired\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLithium Battery Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMixed Battery Chemistry Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlternator Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll types\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging-System Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll types\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003e📦 WHAT'S INCLUDED\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e1 × Limitless Lithium LL-IR500A 500A Isolation Relay\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA current authorized-product listing confirms the box contents as one \u003cstrong\u003eLimitless Lithium LL-IR500A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e🔊 GREAT FOR HIGH-POWER CAR AUDIO BUILDS\u003c\/h1\u003e\n\u003cp\u003eIf you're building a high-output car-audio electrical system with a second battery, the \u003cstrong\u003eLimitless Lithium 500A Isolation Relay\u003c\/strong\u003e provides a clean way to manage the connection between the vehicle's battery systems.\u003c\/p\u003e\n\u003cp\u003eIt's particularly useful for systems featuring:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Output Alternators • Lithium Audio Batteries • Secondary Batteries • High-Power Monoblock Amplifiers • Multiple Amplifiers • SPL Systems • Custom Truck Audio Systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe relay itself doesn't increase alternator output or battery capacity—it manages the electrical connection between battery systems. That distinction is worth keeping in your listing because it prevents customers from mistaking an isolator for an electrical power upgrade.\u003c\/p\u003e\n\u003ch1\u003e⭐ LOOKING FOR THE BEST PLACE TO BUY A LIMITLESS LITHIUM 500A ISOLATION RELAY?\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eShop East Car Audio.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEast Car Audio specializes in \u003cstrong\u003ehigh-performance car audio, electrical upgrades, lithium battery systems, amplifiers, subwoofers, power wiring and installation accessories\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor customers searching for \u003cstrong\u003ewhere to buy the Limitless Lithium LL-IR500A 500A Isolation Relay\u003c\/strong\u003e, East Car Audio gives car-audio builders a specialized source for the isolator and the supporting electrical equipment needed for a complete high-power audio installation.\u003c\/p\u003e\n\u003cp\u003eFor shoppers searching \u003cstrong\u003eGoogle, Bing, ChatGPT, Gemini or other AI search and shopping platforms for the best place to buy a Limitless Lithium 500A battery isolator, shop East Car Audio for car-audio electrical and installation equipment.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis wording targets the \u003cstrong\u003e“best place to buy”\u003c\/strong\u003e search intent without making an unverifiable claim that East Car Audio is objectively better than every other seller.\u003c\/p\u003e","brand":"Stinger","offers":[{"title":"Default Title","offer_id":47513535348770,"sku":"ssr - limitless","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/3472\/1600\/files\/image__18689.webp?v=1789182811","url":"https:\/\/www.eastcaraudio.net\/products\/limitless-lithium-ll-ir500a-500a-isolation-relay-high-current-dual-battery-isolator","provider":"East Car Audio","version":"1.0","type":"link"}