Fogstar Drift 12V 300Ah Lithium Leisure Battery (Gen 2)

The Fogstar Drift 12V 300Ah Lithium Leisure Battery (Gen2) is a high-capacity LiFePO4 leisure battery for campervans, motorhomes, boats, off-grid solar systems and backup power applications. With 3,840Wh of stored energy, a 300A Smart BMS, Bluetooth monitoring, integrated low-temperature heating and IP67 protection, it is built for demanding 12V electrical systems where strong power delivery, accurate monitoring and long service life are important. Key Features 300Ah capacity with 3,840Wh of stored energy 12.8V LiFePO4 lithium battery chemistry 300A Smart BMS for high-demand loads 0.2A shunt accuracy for improved state-of-charge monitoring Integrated active cell balancing Grade A EVE LF304 prismatic cells Bluetooth monitoring via the Fogstar Drift App Integrated automatic low-temperature heating IP67 waterproof and dustproof construction Compatible with Victron systems Supports series and parallel battery configurations Physical on/off switch M8 terminals with bolts included 10-year warranty High-Capacity 12V Lithium Power The Drift Gen2 12V 300Ah provides 3,840Wh of stored energy, making it well suited to larger campervan, motorhome, marine and off-grid electrical systems. Its 300A maximum continuous discharge capability allows it to support powerful inverter loads, refrigeration, pumps, lighting, communications equipment and other high-demand devices. Compared with traditional lead-acid leisure batteries, LiFePO4 chemistry offers lower weight, deeper usable capacity and a much longer cycle life. This makes the battery especially attractive for customers looking to reduce battery weight while increasing usable energy storage. Accurate Monitoring and Active Cell Balancing The Gen2 platform uses a highly accurate 0.2A shunt to improve current measurement and state-of-charge reporting. Better measurement accuracy gives users a clearer understanding of remaining capacity, charging performance and real-time energy usage. An integrated active balancer helps maintain even cell voltages across the battery pack, supporting consistent performance and helping to maximise battery efficiency and cycle life over repeated charge and discharge cycles. Bluetooth Monitoring Built-in Bluetooth allows key battery information to be viewed through the Fogstar Drift App on compatible iOS and Android devices. Users can monitor voltage, current, state of charge, temperature and other operating data directly from a phone or tablet without requiring a separate battery monitor. Technical Specifications Specification Value Battery Chemistry LiFePO4 Nominal Voltage 12.8V Capacity 300Ah Energy 3,840Wh Cell Type Grade A EVE LF304 prismatic cells BMS 300A Smart BMS Maximum Continuous Discharge 300A Recommended Charge Voltage 14.4V Shunt Accuracy 0.2A Cell Balancing Active balancing Cycle Life 4,500 cycles at 80% DOD Monitoring Bluetooth via Fogstar Drift App Low-Temperature Heating Integrated automatic heating Protection Rating IP67 Dimensions 383 × 193 × 250mm Weight Approx. 29kg Terminals M8, 1.25 pitch, 12mm bolts included Warranty 10 years Cold-Weather Charging Protection The integrated low-temperature heater helps protect the LiFePO4 cells when charging conditions are too cold. The battery can warm itself before charging, making it better suited to winter campervan use, marine installations, outdoor lockers and off-grid systems exposed to low ambient temperatures. IP67 Protection for Demanding Installations An IP67-rated enclosure provides protection against dust and water ingress, giving the battery greater flexibility in mobile, marine and off-grid installations. This makes it suitable for environments where damp conditions, splashes or dust may be present around the battery compartment. Series and Parallel Configuration Configuration Maximum Supported Series Connection Up to 4 batteries for 48V systems Parallel Connection Up to 16 batteries Parallel connection allows total storage capacity to be increased substantially for larger off-grid and leisure electrical systems. Supported series operation also provides a route to 24V, 36V or 48V battery banks where the installation is correctly configured for series use. Victron System Integration The Drift Gen2 range supports integration with compatible Victron systems, making it a strong choice for campervan, marine and off-grid installations using Victron inverter/chargers, solar charge controllers and monitoring equipment. Compatible communication can provide improved system data and simplify installation within a properly configured Victron electrical system. Typical Applications Campervan and van conversion electrical systems Motorhome lithium leisure battery upgrades Marine and boat electrical systems Off-grid solar battery storage Cabins and remote buildings High-power inverter systems Backup power systems DIY solar systems 12V renewable energy installations Expandable 24V and 48V battery banks using supported configurations Why Choose This Product? The Fogstar Drift 12V 300Ah Gen2 combines a substantial 3.84kWh of stored energy with a high-current 300A BMS, making it suitable for electrical systems where both runtime and power delivery matter. Premium EVE LF304 cells, active balancing, accurate shunt monitoring and Bluetooth connectivity give users greater control and visibility than a basic lithium leisure battery. Integrated heating, IP67 protection, Victron compatibility and support for larger series or parallel battery banks make it a versatile choice for campervan, motorhome, marine and off-grid solar installations. A 10-year warranty provides additional confidence for long-term use. For technical support or additional information, reach out to us at hello@offgridrenewables.co.uk.