{"product_id":"relion-battery-rb300-relion-lithium-battery-group-31-12v-300ah-marine-deep-cycle","title":"Relion Battery RB300 RELiON Lithium Battery Group 31 12V 300Ah Marine Deep Cycle","description":"\u003cp\u003eThis new RELiON Legacy Series Lithium Battery RB300 is a high-capacity 12-volt, Group 31 lithium iron phosphate (LiFePO₄) deep cycle battery engineered for marine, RV, solar, and off-grid power systems with substantial energy demands. Designed as a direct replacement for large-format AGM, GEL, or lead-acid batteries, the RB300 delivers exceptional usable capacity, ultra-fast charging, and extended cycle life with zero maintenance.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eBuilt with a durable ABS enclosure and an integrated Battery Management System (BMS), the RB300 ensures safe operation, accurate state-of-charge monitoring, and long-term reliability. With 300 amp hours of capacity and an impressive 720-minute reserve capacity, this battery is ideal for applications requiring long runtimes and consistent deep cycle performance.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e RB300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Legacy Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 Volt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBCI Group Number:\u003c\/strong\u003e 31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Type:\u003c\/strong\u003e Marine Deep Cycle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrolyte Style:\u003c\/strong\u003e Lithium Iron Phosphate (LiFePO₄)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmp Hour Rating:\u003c\/strong\u003e 300 AH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Cranking Amps (CCA):\u003c\/strong\u003e 200 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCranking Amps:\u003c\/strong\u003e 100 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReserve Capacity:\u003c\/strong\u003e 720 Minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Location:\u003c\/strong\u003e M8 Threaded Stud Top Terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e ABS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 20.6 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 10.5 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 8.7 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Rated:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversality:\u003c\/strong\u003e Fully Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIngress Protection:\u003c\/strong\u003e IP65\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh-capacity LiFePO₄ lithium technology provides significantly more usable energy than lead-acid batteries\u003c\/li\u003e\n\u003cli\u003eIntegrated Battery Management System (BMS) ensures protection, safety, and accurate SOC calculations\u003c\/li\u003e\n\u003cli\u003eUltra-fast charging and high-efficiency discharge performance\u003c\/li\u003e\n\u003cli\u003eUp to 99% efficiency for maximum usable power\u003c\/li\u003e\n\u003cli\u003eExtended cycle life with maintenance-free operation\u003c\/li\u003e\n\u003cli\u003eDurable ABS enclosure for demanding marine and off-grid environments\u003c\/li\u003e\n\u003cli\u003eCapable of charging in temperatures from -20°C to 45°C\u003c\/li\u003e\n\u003cli\u003eIdeal solution for large battery banks and high-consumption systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMarine deep cycle power systems\u003c\/li\u003e\n\u003cli\u003eRV house battery banks\u003c\/li\u003e\n\u003cli\u003eSolar energy storage\u003c\/li\u003e\n\u003cli\u003eOff-grid and backup power systems\u003c\/li\u003e\n\u003cli\u003eHigh-demand DC power applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWarranty\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLimited 10-Year Product Warranty\u003c\/li\u003e\n\u003cli\u003e3-Year Free Replacement Warranty\u003c\/li\u003e\n\u003cli\u003eNon-Returnable Item\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Relion Battery","offers":[{"title":"Default Title","offer_id":48298257973454,"sku":"06-8329","price":4119.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3785\/6462\/files\/ImageServerAPI_1_0e853290-eb77-4ee6-9af9-8d1d37974fde.png?v=1787073383","url":"https:\/\/newrvparts.com\/products\/relion-battery-rb300-relion-lithium-battery-group-31-12v-300ah-marine-deep-cycle","provider":"New RV Parts","version":"1.0","type":"link"}