FogStar 5.12kWh 48V 100Ah LiFePO4 Rack Battery

The FogStar 5.12kWh 48V 100Ah LiFePO4 Rack Battery is a high performance energy storage solution designed for modern solar and off grid systems. Built using premium Grade A EVE LiFePO4 cells, this battery delivers outstanding reliability, safety, and long term value for both residential and commercial applications.

With fully usable capacity, advanced battery management, and wide inverter compatibility straight out of the box, the FogStar rack battery is ideal for anyone looking to reduce energy bills, maximise solar self consumption, or achieve true energy independence.

Unmatched Performance and Long Service Life

This 5.12kWh rack battery provides reliable power storage for everyday use, backup power, and off grid operation. The high quality EVE LF100LA cells deliver 4000 cycles at 80 percent depth of discharge, meaning you still retain around 80 percent of usable capacity even after years of operation.

The full 5.12kWh capacity is usable, making it an efficient and cost effective choice compared to many alternatives on the market.

Seamless Inverter Compatibility and Easy Setup

The FogStar rack battery is supplied with pre loaded inverter protocols, allowing effortless integration with many leading inverter brands, including Victron, Pylontech, Growatt, Sofar, Solis, Goodwe.

The built-in LCD touchscreen allows quick and simple selection of inverter protocols without downloading any BMS software, making installation and configuration straightforward for installers and end users.

Designed for the UK Climate

Engineered specifically for real-world UK conditions, the FogStar battery includes an automatic internal heating system. When temperatures fall below 5°C, the heater activates to allow safe charging even in extreme cold conditions down to -20°C.

This ensures year-round performance and reliability, especially in unheated garages, plant rooms, and outdoor battery enclosures.

Advanced Safety and Protection

Safety is at the core of the FogStar design. The battery is equipped with a high-quality PACE 100A BMS for intelligent cell monitoring and protection, along with a built-in 125A DC circuit breaker to safeguard against electrical faults.

LiFePO4 chemistry provides excellent thermal stability and is widely regarded as one of the safest lithium battery technologies available.

Expandable Energy Storage

As your energy needs grow, the FogStar rack battery grows with you. Up to 32 batteries can be connected in parallel, or 31 when used with Victron systems, allowing you to scale your storage capacity to suit larger solar arrays or higher consumption demands.

This makes it an excellent long-term investment for expanding homes, businesses, and off-grid installations.

Key Features

• 5.12kWh fully usable LiFePO4 energy storage
• 48V 100Ah rack mount battery design
• 4000 cycles at 80 percent depth of discharge
• Automatic internal heating down to -20°C
• Preloaded inverter protocols for easy integration
• LCD touchscreen for quick configuration
• 125A DC circuit breaker for enhanced protection
• Expandable up to 32 batteries in parallel
• 10-year manufacturer warranty

What Is Included

• FogStar ESR51.2V 5.12kWh rack battery
• RS232 to USB communication cable
• Positive 35mm battery cable
• Negative 35mm battery cable

Important Compatibility Notice

The FogStar ESR48V and ESR51.2V rack battery systems are not compatible with other rack battery brands or models. Differences in power ratings, dimensions, BMS communication, and system design may cause damage or unsafe operation.

Please do not attempt to connect this battery to any other make or model of rack battery. If you are unsure about compatibility or system design, contact our technical support team before purchasing.

Choose the FogStar 5.12kWh 48V LiFePO4 Rack Battery for dependable performance, long service life, and complete confidence in your energy storage system.