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

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

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.