{"title":"Limitless Retro Pro Series battery","description":null,"products":[{"product_id":"retro-pro-56-limitless-lithium","title":"Retro Pro 56 Limitless Lithium","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eLimitless Lithium Retro Pro 56\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSerious Lithium Power for Serious Car Audio Systems\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLimitless Lithium Retro Pro 56\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-performance \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12V LiFePO4 lithium battery\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e engineered for demanding high-output electrical and car audio systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e56Ah of actual capacity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e750 amps of continuous discharge\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1,200–1,300 amps of burst discharge capability\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the Retro Pro 56 is built to supply the current serious amplifiers demand.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on alternator output and the overall electrical system, the Retro Pro 56 can support approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9,000–13,000 watts continuously\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e16,000 watts of burst power\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePOWER CAPABILITY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Power Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 9,000–13,000 Watts\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eBurst Power Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 16,000 Watts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContinuous power capability is dependent on alternator output:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e100A–400A Alternator Range\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor maximum performance, your charging system, wiring, grounds, alternator capacity, and overall electrical system should be properly matched to your amplifier system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e56AH OF ACTUAL CAPACITY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Retro Pro 56 provides \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e56Ah of actual lithium capacity — not a lead-acid equivalent rating.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts estimated lead-acid equivalent capacity is approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e200–240Ah\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, delivering substantial reserve capacity without the size and weight associated with a comparable traditional battery bank.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHIGH-CURRENT PERFORMANCE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBuilt for demanding electrical systems, the Retro Pro 56 delivers:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e750A Continuous Discharge\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1,200–1,300A Burst Discharge\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUp to 400A Maximum Charge Current\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e9,000–13,000W Continuous Power Support\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUp to 16,000W Burst Power Support\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNOTE:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Burst amperage is temperature dependent. Charging above 400 amps may reduce battery cycle life.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLIFEPO4 CHEMISTRY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Retro Pro 56 utilizes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e chemistry and features an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003einternal balance board\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to help maintain proper cell balance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIMPORTANT:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The Retro Pro 56 does \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e have an integrated Battery Management System (BMS). Proper charging voltage, installation, system monitoring, and battery maintenance are essential.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSPECIFICATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Retro Pro 56\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eResting Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 13.1V–13.4V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCapacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 56Ah Actual\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLead-Acid Equivalent:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 200–240Ah\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChemistry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e LiFePO4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBCI Case Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Group 24\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 21 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDepth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWidth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10.125\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTerminal Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e M8 × 1.25\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTerminal Orientation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Positive Left\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOperating Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e -22°F to 140°F (-30°C to 60°C)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Charge Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 14.8V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Charge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 400A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Discharge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 750A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBurst Discharge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1,200–1,300A*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Wattage Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 9,000–13,000W*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBurst Wattage Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 16,000W*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLife Cycles:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 2,000 cycles @ 80% DOD\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInternal Balance Board:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMS:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003ePerformance is dependent on temperature, alternator output, charging system, wiring, and overall electrical-system configuration.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBUILT FOR HIGH-OUTPUT CAR AUDIO\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhen you're running \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emultiple high-power amplifiers, large subwoofer systems, or competition-level electrical demands\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, your battery bank needs to be capable of supplying massive amounts of current quickly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Retro Pro 56 combines \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehigh continuous discharge capability, substantial reserve capacity, and compact LiFePO4 technology\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to create an electrical foundation capable of supporting serious car audio power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWARRANTY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEvery Limitless Lithium Retro Pro 56 includes a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1-year warranty\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e from the date of purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRegister your battery \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewithin 30 days of purchase\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to receive an additional \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2-year warranty extension\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a total of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3 years of coverage against manufacturing defects\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHIGH POWER. HIGH CAPACITY. BUILT TO PERFORM.\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor systems demanding \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10,000 watts and beyond\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLimitless Lithium Retro Pro 56\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides the current capability and reserve capacity needed to keep high-output amplifiers supplied with serious power.\u003c\/span\u003e\u003c\/p\u003e","brand":"Car Audio Superstore","offers":[{"title":"Default Title","offer_id":67609965691190,"sku":"RP24-56AH","price":1339.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/1319\/0710\/files\/RETROPRO56-001__97324_dd95706c-a3d9-41b2-9fb7-ba13626b4775.webp?v=1790711734"},{"product_id":"retro-pro-56-limitless-lithium-with-3-5a-battery-maintainer","title":"Retro Pro 56 Limitless Lithium with 3.5A Battery Maintainer","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eLimitless Lithium Retro Pro 56\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSerious Lithium Power for Serious Car Audio Systems\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLimitless Lithium Retro Pro 56\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-performance \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12V LiFePO4 lithium battery\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e engineered for demanding high-output electrical and car audio systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e56Ah of actual capacity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e750 amps of continuous discharge\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1,200–1,300 amps of burst discharge capability\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the Retro Pro 56 is built to supply the current serious amplifiers demand.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on alternator output and the overall electrical system, the Retro Pro 56 can support approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9,000–13,000 watts continuously\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e16,000 watts of burst power\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePOWER CAPABILITY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Power Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 9,000–13,000 Watts\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eBurst Power Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 16,000 Watts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContinuous power capability is dependent on alternator output:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e100A–400A Alternator Range\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor maximum performance, your charging system, wiring, grounds, alternator capacity, and overall electrical system should be properly matched to your amplifier system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e56AH OF ACTUAL CAPACITY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Retro Pro 56 provides \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e56Ah of actual lithium capacity — not a lead-acid equivalent rating.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts estimated lead-acid equivalent capacity is approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e200–240Ah\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, delivering substantial reserve capacity without the size and weight associated with a comparable traditional battery bank.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHIGH-CURRENT PERFORMANCE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBuilt for demanding electrical systems, the Retro Pro 56 delivers:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e750A Continuous Discharge\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1,200–1,300A Burst Discharge\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUp to 400A Maximum Charge Current\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e9,000–13,000W Continuous Power Support\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUp to 16,000W Burst Power Support\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNOTE:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Burst amperage is temperature dependent. Charging above 400 amps may reduce battery cycle life.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLIFEPO4 CHEMISTRY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Retro Pro 56 utilizes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e chemistry and features an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003einternal balance board\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to help maintain proper cell balance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIMPORTANT:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The Retro Pro 56 does \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e have an integrated Battery Management System (BMS). Proper charging voltage, installation, system monitoring, and battery maintenance are essential.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSPECIFICATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Retro Pro 56\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eResting Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 13.1V–13.4V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCapacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 56Ah Actual\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLead-Acid Equivalent:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 200–240Ah\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChemistry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e LiFePO4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBCI Case Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Group 24\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 21 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDepth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWidth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10.125\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTerminal Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e M8 × 1.25\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTerminal Orientation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Positive Left\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOperating Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e -22°F to 140°F (-30°C to 60°C)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Charge Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 14.8V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Charge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 400A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Discharge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 750A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBurst Discharge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1,200–1,300A*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Wattage Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 9,000–13,000W*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBurst Wattage Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 16,000W*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLife Cycles:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 2,000 cycles @ 80% DOD\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInternal Balance Board:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMS:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003ePerformance is dependent on temperature, alternator output, charging system, wiring, and overall electrical-system configuration.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBUILT FOR HIGH-OUTPUT CAR AUDIO\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhen you're running \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emultiple high-power amplifiers, large subwoofer systems, or competition-level electrical demands\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, your battery bank needs to be capable of supplying massive amounts of current quickly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Retro Pro 56 combines \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehigh continuous discharge capability, substantial reserve capacity, and compact LiFePO4 technology\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to create an electrical foundation capable of supporting serious car audio power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWARRANTY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEvery Limitless Lithium Retro Pro 56 includes a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1-year warranty\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e from the date of purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRegister your battery \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewithin 30 days of purchase\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to receive an additional \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2-year warranty extension\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a total of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3 years of coverage against manufacturing defects\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHIGH POWER. HIGH CAPACITY. BUILT TO PERFORM.\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor systems demanding \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10,000 watts and beyond\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLimitless Lithium Retro Pro 56\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides the current capability and reserve capacity needed to keep high-output amplifiers supplied with serious power.\u003c\/span\u003e\u003c\/p\u003e","brand":"Car Audio Superstore","offers":[{"title":"Default Title","offer_id":67609990463798,"sku":null,"price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/1319\/0710\/files\/combo-retro56-35v2__98758.webp?v=1790711785"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/1319\/0710\/collections\/RETROPRO56-001__97324.webp?v=1790711712","url":"https:\/\/www.caraudiosuperstore.com\/collections\/limitless-retro-pro-series-battery.oembed","provider":"Car Audio Superstore","version":"1.0","type":"link"}