Fogstar Drift Gen2 12V 334Ah LiFePO4 Leisure Battery High‑capacity 12V 334Ah LiFePO4 leisure battery for demanding off‑grid and commercial applications where long runtime and reliability matter most. Integrated smart BMS with 300A discharge capability, Bluetooth monitoring and built‑in heating for safe, year‑round operation in UK and European climates. Up to 4,000 cycles at 80% depth of discharge, helping reduce downtime and replacement costs. Fogstar Drift 334Ah Gen2 LiFePO4 The Fogstar Drift Gen2 12V 334Ah LiFePO4 leisure battery is designed for applications that need a large, dependable energy store in a compact footprint, from campervans and off‑grid cabins to welfare units, mobile workshops and marine house banks. With 4,275Wh of energy, 300A maximum discharge and a robust smart BMS, it provides a stable power supply for inverters, refrigeration, tools and onboard electronics over long duty cycles. Built‑in heating, Bluetooth connectivity and proven EVE LF334 prismatic cells make it a practical choice for logistics, commercial and industrial projects where predictable performance and simple monitoring are important. Key features of the Fogstar Drift 334Ah Gen2 12.8V, 334Ah (4,275Wh) LiFePO4 leisure battery using EVE LF334 Grade A prismatic cells for stable, long‑life energy storage. 300A maximum discharge and 300A maximum charge capability, suitable for high‑load systems when correctly designed and protected. Integrated smart BMS with over‑current, over‑discharge and temperature protection plus 2A active balancing for cell health over the battery lifetime. Built‑in low‑temperature heating pads to enable safe charging in cold conditions, powered from the incoming charge current rather than the battery itself. Series and parallel linking: up to 16 batteries in parallel or 4 in series (up to 48V), allowing flexible system design for larger off‑grid and commercial installations. Ideal applications This 334Ah Gen2 LiFePO4 leisure battery suits campervans, motorhomes and overland vehicles that run high‑demand loads such as inverters, induction hobs, refrigeration and heating for extended periods away from mains power. It is equally at home as a marine house bank on yachts and workboats, or in static off‑grid systems such as site cabins, containerised power units and backup systems for small commercial premises. Multiple batteries can be combined for larger 12V, 24V or 48V systems and integrated with solar arrays, alternator charging and inverters using appropriate control equipment; for anything beyond a simple drop‑in replacement we recommend installation and commissioning by one of our trusted partners or your preferred qualified installer. Technical specifications Cell Type: LF334 Cell Configuration: 4S1P Nominal Capacity: 334Ah Energy: 4,275Wh Cell Chemistry: Lithium Iron Phosphate Cell Nominal Voltage: 3.2V *4 (12.8V) Cycle Life: 4000 Cycles @ 80% DOD Maximum Discharge: 300A Nominal Voltage: 12.8V Standard Charging Voltage: 14.4V Maximum Charging Voltage: 14.6V Discharge Cut Off Voltage: 10V Discharge Temperature Range: -20°C ~ 55°C Charge Temperature Range: 0°C ~ 55°C Heating Function: 0°C ~ 10°C Storage: -20°C ~ 45°C (1 month) 0°C ~ 35°C (3 months) Measurements (LxWxH mm): 383 x 193 x 250 Weight: 29kg Housing Material: ABS Plastic BMS specifications Maximum Discharge: 300A Temperate Protection: Yes Overcurrent Protection: Yes Overdischarge Protection: Yes Max Charging Current: 300A Battery series and parallel mode Our 12V models can be connected sixteen (16) in parallel OR four (4) in series - to a maximum of 48V. Battery heating This battery has a built-in heater that heats the battery to 5°C to enable charging at low temperatures. The 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. If 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. Charging Your battery should be charged using a lithium iron phosphate battery charger. Bulk Charge: 14.4V Float Charge: 13.5V Charging Current: up to 300A Battery warranty Fogstar offers a 10 year warranty on all Fogstar Drift Leisure batteries. Warranties only apply to the original owner and are non-transferrable. Fogstar will verify your purchase prior to processing any warranty claims or returns. Please contact us at [email protected] as soon as you encounter any issues. Our 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. Active balancing All cells used in the Gen2 range are Grade A, factory-matched and balanced EVE prismatic cells supplied directly from the manufacturer. The 2A active balancer is fully integrated within the BMS architecture, rather than implemented as an external module. The system maintains long-term voltage equilibrium across the pack without continuous current consumption. UK expert support Energian provides UK‑based expert support to help you specify, integrate and operate Fogstar Drift Gen2 LiFePO4 leisure batteries within 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 simple drop‑in replacement is not appropriate. Documents available for download Fogstar Drift Gen2 12V 334Ah LiFePO4 Leisure Battery – Technical Datasheet (PDF) Fogstar Drift Gen2 LiFePO4 Leisure Battery – User / Installation Manual (PDF)
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