{"product_id":"rolls-vb12-314lfp-12v-314ah-lifepo4-battery","title":"Rolls VB12-314LFP 12V 314Ah LiFePO4 Battery","description":"\u003cdiv style=\"font-size: 18px; line-height: 1.6;\"\u003e\n\u003c!-- A. Product Title \/ Heading --\u003e\n\u003ch1 style=\"text-align: center;\"\u003eRolls VB12-314LFP 12V 314Ah LiFePO₄ Battery\u003c\/h1\u003e\n\u003c!-- B. Key value proposition --\u003e\n\u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-capacity 12V 314Ah LiFePO₄ leisure battery delivering 4.02kWh of energy in a single compact case for larger 12V and 48V systems.\u003c\/li\u003e\n\u003cli\u003eLong service life with an expected 6000 cycles at 80% depth of discharge, helping to minimise replacement and downtime in demanding applications.\u003c\/li\u003e\n\u003cli\u003eIntegrated hardware BMS with full protection plus Bluetooth connectivity and dedicated iOS\/Android app for straightforward monitoring and control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- C. Brief Description --\u003e\n\u003ch2\u003eBrief description\u003c\/h2\u003e\n\u003cp\u003eThe Rolls VB12-314LFP 12V 314Ah LiFePO₄ Battery is part of the VB Series LFP range and is built around high-quality prismatic LiFePO₄ cells in an ABS enclosure. With 4.02kWh of storage, fast charge\/discharge capability and maintenance-free design, it suits larger campervans, motorhomes, boats, off‑grid cabins and commercial service vehicles that need substantial 12V capacity in one unit. An integrated BMS manages safety, while an IP65 rating and Bluetooth connectivity make it practical for real-world leisure and light commercial environments.\u003c\/p\u003e\n\u003c!-- D. Key features --\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e12.8V nominal, 314Ah capacity and 4.02kWh total energy for high‑demand 12V and 48V systems.\u003c\/li\u003e\n\u003cli\u003eABS container with rope\/plastic handles and M8 terminals supplied with stainless bolts and washers for easy installation.\u003c\/li\u003e\n\u003cli\u003eFast charge\/discharge performance with up to 150A continuous charge and discharge current.\u003c\/li\u003e\n\u003cli\u003eHeating for low‑temperature operation plus wide charge and discharge temperature ranges.\u003c\/li\u003e\n\u003cli\u003eUp to 4 units in series and 4 in parallel (4S4P at 48V) for scalable storage banks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- E. Technical specifications – all strings from the datasheet --\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ch3\u003eGeneral\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eVB Series LFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eSee Warranty Terms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolts\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eSPEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Hardware\u003c\/td\u003e\n\u003ctd\u003eM8 stainless bolts \u0026amp; washers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCharge \/ Discharge\u003c\/h3\u003e\n\u003ctable style=\"width: 100.087%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eCharge Voltage Range\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e14.2–14.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eEnd of Discharge Protection Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e11.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eRecommended Charge Current (‑20~50°C \/ ‑4–122°F)\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e0.32C 100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eCharge Mode\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003eCharge at recommend voltage \u0026amp; current by temperature until charge current drops to ≤ 0.05C (CC,CV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eCharge Mode Notes\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003eDO NOT USE TEMPERATURE COMPENSATION; No BTS (Battery Temperature Sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eMax Continuous Charge Current\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e150 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eMax Continuous Discharge Current\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e150 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eCharge Temperature Range\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e-20~50°C (-4~122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eDischarge Temperature Range\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e-20~55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 63.3091%;\"\u003eStorage Temperature Range\u003c\/td\u003e\n\u003ctd style=\"width: 36.2097%;\"\u003e-5~45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCapacity\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd\u003e314 AH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Energy\u003c\/td\u003e\n\u003ctd\u003e4.02 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e12.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell type\u003c\/td\u003e\n\u003ctd\u003ePrismatic LiFePO4 cells (CB75\/3.2V314Ah)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eIEC 62619 (cell), UL 1973 (cell), UN38.3 (cell\/pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eROHS (cell), IP65 Rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDesign\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContainer\u003c\/td\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover\u003c\/td\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandles\u003c\/td\u003e\n\u003ctd\u003eRope \/ Plastic Handle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign features\u003c\/td\u003e\n\u003ctd\u003eFast charge\/discharge performance; Maintenance-free operation; Heating for low temperature operation; Bluetooth Connectivity \u0026amp; dedicated IOS \u0026amp; Android App\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBattery Management System (BMS)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated hardware BMS inside\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal BMS Model\u003c\/td\u003e\n\u003ctd\u003eRD-RJ4S150A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection topology\u003c\/td\u003e\n\u003ctd\u003eIndependent charge \u0026amp; discharge protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection functions\u003c\/td\u003e\n\u003ctd\u003eShort-Circuit Protection, Over-Voltage Protection, Low-Voltage Protection, Over-Current Protection, Low-Temperature Protection, Over-Temperature Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSpecifications – mechanical\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e31.5 kg \/ 69.4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e384 mm \/ 15.12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e194 mm \/ 7.64\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e248 mm \/ 9.76\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight Incl. Term.\u003c\/td\u003e\n\u003ctd\u003e253 mm \/ 9.96\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement note\u003c\/td\u003e\n\u003ctd\u003eProduct measurements \u0026amp; weights are calculated based on sample data. Individual specifications are subject to vary due to the manufacturing process \u0026amp; battery components.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOperational limits and configuration\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpected Cycle Life\u003c\/td\u003e\n\u003ctd\u003e6000 @ 80% DOD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries Connection\u003c\/td\u003e\n\u003ctd\u003e4 UNITS MAX (48V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel Connection\u003c\/td\u003e\n\u003ctd\u003e4 UNITS MAX (48V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eUp to 4S4P (in 48V configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRevision\u003c\/td\u003e\n\u003ctd\u003eRev.#2 | November 2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- F. Shipping --\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eShipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If the shipping rate is not shown at checkout, please contact us on \u003ca href=\"tel:+442080640335\"\u003e+44 2080640335\u003c\/a\u003e or \u003ca href=\"mailto:info@energian.co.uk\"\u003einfo@energian.co.uk\u003c\/a\u003e for a tailored shipping quote.\u003c\/p\u003e\n\u003c!-- UK expert support --\u003e\n\u003ch2\u003eUK expert support\u003c\/h2\u003e\n\u003cp\u003eUK expert support is available to help with battery selection, sizing and configuration of the Rolls VB12-314LFP 12V 314Ah LiFePO₄ Battery in leisure, marine and off‑grid systems. For larger banks or systems with inverters, chargers and DC distribution we recommend installation and commissioning via our trusted partners to ensure safe operation and correct protection settings.\u003c\/p\u003e\n\u003cp\u003eYou can contact us by phone, email or live chat, or visit our office for an in‑person consultation to discuss your project and preferred system layout.\u003c\/p\u003e\n\u003c!-- Documents --\u003e\n\u003ch2\u003eDocuments available for download\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/VB12-314LFP_datasheet.pdf?v=1781007609\" style=\"color: rgb(43, 0, 255);\" rel=\"noopener\" target=\"_blank\"\u003eRolls VB12-314LFP datasheet\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/Rolls-VB-Series-LFP-Drop-In-Battery-Operating-Manual.pdf?v=1780991461\" target=\"_blank\" rel=\"noopener\"\u003eRolls VB Series LFP installation \/ user manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Rolls Battery","offers":[{"title":"Default Title","offer_id":57527338336638,"sku":"VB12-314LFP","price":527.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/V12-314LFP.webp?v=1781007314","url":"https:\/\/www.energian.co.uk\/products\/rolls-vb12-314lfp-12v-314ah-lifepo4-battery","provider":"Energian","version":"1.0","type":"link"}