{"product_id":"fogstar-drift-12v-668ah-gen-2-lithium-leisure-battery","title":"Fogstar Drift 12v 668Ah Gen 2 Lithium Leisure Battery","description":"\u003cdiv style=\"font-size: 16px; line-height: 1.6;\"\u003e\n\u003c!-- A. PRODUCT TITLE \/ HEADING --\u003e\n\u003ch1 style=\"text-align: center;\"\u003eFogstar Drift Gen2 12V 668Ah LiFePO4 Leisure Battery\u003c\/h1\u003e\n\u003c!-- B. KEY VALUE PROPOSITION --\u003e\n\u003cul\u003e\n\u003cli\u003eVery high‑capacity 12V 668Ah LiFePO4 leisure battery delivering 8,550Wh of energy for serious off‑grid and commercial power systems.\u003c\/li\u003e\n\u003cli\u003e300A smart BMS with Bluetooth monitoring, active balancing and built‑in heating for controlled, year‑round operation in demanding environments.\u003c\/li\u003e\n\u003cli\u003eUp to 4,000 cycles at 80% depth of discharge, designed to support long duty cycles in logistics, marine, welfare and industrial applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- C. BRIEF DESCRIPTION --\u003e\n\u003ch2 style=\"text-align: center;\"\u003eFogstar Drift 668Ah Gen2 LiFePO4 Leisure Battery\u003c\/h2\u003e\n\u003cp\u003eThe Fogstar Drift Gen2 12V 668Ah LiFePO4 leisure battery is built for large off‑grid systems that need reliable, long‑duration power from a single battery bank. With 8,550Wh of stored energy and a 300A maximum discharge, it can comfortably support sizeable inverters, refrigeration, tools and onboard systems in vehicles, boats and fixed installations as part of a  correctly designed installation. EVE LF334 prismatic cells, integrated heating and a robust smart BMS make it a practical choice for mobile welfare units, marine house banks, off‑grid cabins and containerised power where uptime and predictability are key.\u003c\/p\u003e\n\u003c!-- D. KEY FEATURES --\u003e\n\u003ch2\u003eKey features of the Fogstar Drift 668Ah Gen2\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e12.8V, 668Ah (8,550Wh) LiFePO4 leisure battery using EVE LF334 Grade A prismatic cells for stable, large‑scale energy storage.\u003c\/li\u003e\n\u003cli\u003e300A maximum discharge and 300A maximum charge capability, suitable for high‑load systems when paired with appropriately rated cables, protection and control gear.\u003c\/li\u003e\n\u003cli\u003eSmart BMS with over‑current, over‑discharge and temperature protection plus 2A active balancing to maintain cell alignment over the service life.\u003c\/li\u003e\n\u003cli\u003eBuilt‑in heating pads to enable charging down to low ambient temperatures, powered from the incoming charge current rather than the battery itself.\u003c\/li\u003e\n\u003cli\u003eCan be linked up to sixteen units in parallel or four in series (up to 48V) for large off‑grid, marine and industrial systems; professional installation is recommended for multi‑battery banks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- APPLICATIONS \/ USE CASES --\u003e\n\u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cp\u003eThis 668Ah Gen2 LiFePO4 leisure battery is well suited to high‑demand off‑grid systems in campervans, motorhomes and specialist vehicles where long runtime and large inverter loads are required. It is also appropriate for marine house banks on larger yachts and workboats, remote site cabins, welfare units, telecoms support and containerised or skid‑mounted power solutions. For complex systems with multiple batteries, mixed charging sources (solar, alternator, generator) and larger inverters, we recommend design, installation and commissioning through our trusted partners or your preferred qualified installer.\u003c\/p\u003e\n\u003c!-- E. TECHNICAL SPECIFICATIONS – ALL STRINGS FROM DATASHEET --\u003e\n\u003ch2\u003eTechnical specifications \u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCell Type: LF334\u003c\/li\u003e\n\u003cli\u003eCell Configuration: 4S2P\u003c\/li\u003e\n\u003cli\u003eNominal Capacity: 668Ah\u003c\/li\u003e\n\u003cli\u003eEnergy: 8,550Wh\u003c\/li\u003e\n\u003cli\u003eCell Chemistry: Lithium Iron Phosphate\u003c\/li\u003e\n\u003cli\u003eCell Nominal Voltage: 3.2V *4 (12.8V)\u003c\/li\u003e\n\u003cli\u003eCycle Life: 4000 Cycles @ 80% DOD\u003c\/li\u003e\n\u003cli\u003eMaximum Discharge: 300A\u003c\/li\u003e\n\u003cli\u003eNominal Voltage: 12.8V\u003c\/li\u003e\n\u003cli\u003eStandard Charging Voltage: 14.4V\u003c\/li\u003e\n\u003cli\u003eMaximum Charging Voltage: 14.6V\u003c\/li\u003e\n\u003cli\u003eDischarge Cut Off Voltage: 10V\u003c\/li\u003e\n\u003cli\u003eDischarge Temperature Range: -20°C - 55°C\u003c\/li\u003e\n\u003cli\u003eCharge Temperature Range: 0°C - 55°C\u003c\/li\u003e\n\u003cli\u003eHeating Function: 0°C - 10°C\u003c\/li\u003e\n\u003cli\u003eStorage: -20°C - 45°C (1 month) \u0026lt;br\u0026gt; 0°C - 35°C (3 months)\u003c\/li\u003e\n\u003cli\u003eMeasurements (LxWxH mm): 635 x 244 x 220\u003c\/li\u003e\n\u003cli\u003eWeight: 56kg\u003c\/li\u003e\n\u003cli\u003eHousing Material: ABS Plastic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBMS specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum Discharge: 300A\u003c\/li\u003e\n\u003cli\u003eTemperate Protection: Yes\u003c\/li\u003e\n\u003cli\u003eOvercurrent Protection: Yes\u003c\/li\u003e\n\u003cli\u003eOverdischarge Protection: Yes\u003c\/li\u003e\n\u003cli\u003eMax Charging Current: 300A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBattery series and parallel mode\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOur 12V models can be connected sixteen (16) in parallel OR four (4) in series - to a maximum of 48V.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBattery heating\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis battery has a built-in heater that heats the battery to 5°C to enable charging at low temperatures.\u003c\/li\u003e\n\u003cli\u003eThe Drift heating pads are only activated when the battery is being charged, and are only powered by the incoming charge current, not the battery itself.\u003c\/li\u003e\n\u003cli\u003eIf you put the battery on charge in cold temperatures, it will heat the battery first, and then allow current through to the battery when the temperature is safe enough to do so.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCharging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYour battery should be charged using a lithium iron phosphate battery charger.\u003c\/li\u003e\n\u003cli\u003eBulk Charge: 14.4V\u003c\/li\u003e\n\u003cli\u003eFloat Charge: 13.5V\u003c\/li\u003e\n\u003cli\u003eCharging Current: up to 300A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBattery warranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFogstar offers a 10 year warranty on all Fogstar Drift Leisure batteries.\u003c\/li\u003e\n\u003cli\u003eWarranties only apply to the original owner and are non-transferrable.\u003c\/li\u003e\n\u003cli\u003eFogstar will verify your purchase prior to processing any warranty claims or returns.\u003c\/li\u003e\n\u003cli\u003ePlease contact us at customerservice@fogstar.co.uk as soon as you encounter any issues.\u003c\/li\u003e\n\u003cli\u003eOur warranty does not cover items that have been damaged due to gross negligence, normal wear and tear, damage due to accident or collision, abuse or incorrect installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDownload the Fogstar Drift App\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAs a Fogstar customer, you'll also get the use of our fantastic Fogstar Drift App.\u003c\/li\u003e\n\u003cli\u003eOur App has been custom built to connect directly with the BMS, allowing you to manage and maintain the health of the battery at all times.\u003c\/li\u003e\n\u003cli\u003eThe Fogstar Drift app is free to download on both Android and iOS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eActive balancing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll cells used in the Gen2 range are Grade A, factory-matched and balanced EVE prismatic cells. - supplied directly from the manufacturer.\u003c\/li\u003e\n\u003cli\u003eThis ensures your battery begins life with optimal uniformity in capacity and internal resistance.\u003c\/li\u003e\n\u003cli\u003eThe 2A active balancer is fully integrated within the BMS architecture, rather than implemented as an external module.\u003c\/li\u003e\n\u003cli\u003eIt engages only when cell deviation exceeds the defined threshold of 0.015V, and operates with minimal power draw.\u003c\/li\u003e\n\u003cli\u003eThe system maintains long-term voltage equilibrium across the pack without continuous current consumption, and without requiring any user intervention.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- F. SHIPPING \u0026 SUPPORT --\u003e\n\u003ch2\u003eUK expert support\u003c\/h2\u003e\n\u003cp\u003eEnergian provides UK‑based expert support to help you specify, integrate and operate Fogstar Drift Gen2 LiFePO4 leisure batteries in new or existing systems. Contact us by phone, email or live chat, or visit our office for an in‑person consultation, and we can also connect you with trusted installation partners where a straightforward drop‑in replacement is not appropriate.\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 rel=\"noopener\" style=\"color: rgb(43, 0, 255);\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/12V_668Ah_Fogstar_Drift_Gen2_Tech_Spec_Sheet.pdf?v=1778315297\" target=\"_blank\"\u003eFogstar Drift Gen2 12V 668Ah LiFePO4 Leisure Battery – Technical Datasheet (PDF)\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\/Limited_Edition_Gen2_Fogstar_Drift_Manual.pdf?v=1778315413\"\u003eFogstar Drift Gen2 LiFePO4 Leisure Battery – User \/ Installation Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Fogstar Drift","offers":[{"title":"Default Title","offer_id":57384859435390,"sku":null,"price":1146.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/Fogstar-Drift-12V-668Ah-Lithium-Leisure-Battery-Gen2-Limited-Edition-3.png?v=1778315579","url":"https:\/\/www.energian.co.uk\/products\/fogstar-drift-12v-668ah-gen-2-lithium-leisure-battery","provider":"Energian","version":"1.0","type":"link"}