Fogstar Drift 12V 628Ah Lithium Leisure Battery (Gen 2)

The Fogstar Drift 12V 628Ah Lithium Leisure Battery (Gen2) is an ultra-high-capacity LiFePO4 leisure battery for campervans, motorhomes, boats, off-grid solar systems and backup power applications. With 8,038Wh 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 maximum runtime, strong power delivery and dependable long-term performance are priorities.

Key Features

• 628Ah capacity with 8,038Wh of stored energy
• 12.8V LiFePO4 lithium battery chemistry
• 300A Smart BMS for high-demand systems
• 0.2A shunt accuracy for improved state-of-charge monitoring
• Integrated active cell balancing
• Grade A EVE MB31 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

Ultra-High-Capacity 12V Lithium Power

The Drift Gen2 12V 628Ah provides more than 8kWh of stored energy from a single 12V battery, making it a strong choice for large campervan, motorhome, marine and off-grid electrical systems. This substantial capacity can reduce the number of individual batteries needed in high-energy installations, helping simplify wiring and system layout where space permits.

A maximum continuous discharge rating of 300A provides the current required for powerful inverter systems and demanding DC loads. This makes the battery suitable for installations running refrigeration, cooking appliances through an inverter, pumps, lighting, communications equipment and other high-consumption devices.

300A Smart BMS and Active Cell Balancing

The integrated 300A Smart Battery Management System manages battery protection and high-current operation while supporting demanding inverter loads. It incorporates a 0.2A-accuracy shunt for improved current measurement and more reliable state-of-charge reporting.

An active cell balancer helps maintain even cell voltages across the battery pack, supporting consistent performance and helping protect long-term battery health across repeated charge and discharge cycles.

Bluetooth Battery Monitoring

Built-in Bluetooth allows battery performance to be monitored through the Fogstar Drift App on compatible iOS and Android devices. Users can view key operating information including voltage, current, state of charge and battery temperature directly from a phone or tablet.

This gives campervan, marine and off-grid users a simple way to check remaining battery capacity and system behaviour without relying solely on voltage readings.

Technical Specifications

Automatic Low-Temperature Heating

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 touring, marine use and off-grid installations where the battery may be exposed to low ambient temperatures.

IP67 Protection

An IP67-rated enclosure provides strong protection against water and dust ingress, making the battery suitable for more demanding installation environments. This is particularly useful for boats, campervans, motorhomes and off-grid systems where battery compartments may be exposed to damp conditions or dust.

Series and Parallel Configuration

Parallel connection allows total storage capacity to be increased dramatically for very large off-grid or mobile electrical systems. Supported series operation also provides a route to higher-voltage battery banks where the batteries and communications are correctly configured for series use.

Victron System Integration

The Drift Gen2 range supports integration with compatible Victron systems, making the 628Ah model particularly attractive for larger campervan, motorhome, marine and off-grid installations using Victron inverter/chargers, MPPT solar charge controllers and system monitoring equipment.

Compatible communication can provide improved battery information and cleaner integration within a properly configured Victron electrical system.

Typical Applications

• Large campervan and van conversion electrical systems
• Motorhome lithium leisure battery upgrades
• Marine and boat electrical systems
• High-capacity off-grid solar battery storage
• Cabins and remote properties
• Large inverter systems
• Backup power installations
• DIY solar systems
• Extended off-grid touring
• High-consumption 12V electrical systems
• Expandable 24V and 48V battery banks using supported configurations

Why Choose This Product?

The Fogstar Drift 12V 628Ah Gen2 delivers an exceptional 8.038kWh of energy storage in a single 12V battery, making it ideal for customers who want maximum runtime without building a large bank from multiple smaller batteries. Its 300A Smart BMS provides the current capability required for powerful inverter applications, while premium EVE MB31 cells, active balancing and accurate shunt monitoring support dependable long-term operation.

Bluetooth monitoring, automatic low-temperature heating, IP67 protection and Victron compatibility make it especially well suited to premium campervan, motorhome, marine and off-grid solar installations. An 8,000-cycle rating at 80% depth of discharge and a 10-year warranty add further confidence for long-term energy storage use.

For technical support or additional information, reach out to us at hello@offgridrenewables.co.uk.