Fox EQ2900 2.88kWh MASTER Battery – EQM2900 Fox ESS

Unlock Greater Energy Storage with the Fox EQ2900 2.88kWh MASTER Battery – a powerful high-voltage expansion unit designed to work with the Fox EQ2900 SLAVE batteries.

The Fox EQ2900 2.88kWh MASTER battery offers a compact, stackable design for flexible installation, allowing you to expand your system with up to 6 SLAVE units.

Note: This is a MASTER unit and cannot function independently. At least 1 SLAVE battery is required. You can purchase a compatible SLAVE battery here.

System Configuration Limits

Minimum Setup Requirements:

• Single Phase: 1x Master + 1x Slave
• Three Phase: 1x Master + 2x Slaves

Maximum Capacity: 1x Master + 6x Slaves = 20.16kWh total

Key Features of the Fox EQ2900 2.88kWh MASTER Battery:

• 2.88kWh Storage Capacity per battery
• Scalable up to 20.16kWh with up to 6 Slave units
• 90% Depth of Discharge (DOD) for high efficiency
• Compact & Stackable for space-saving installation
• Easy Plug-and-Play Setup with simple buckle-fixing design
• CAN/RS485 Communication for seamless system integration
• Wide Operating Temperature Range
• Fast Charge/Discharge Performance
• 12-Year Warranty (upon registration at Fox ESS website)

Easy Installation

Designed with installers in mind, the Fox EQ2900 2.88kWh MASTER Battery is a plug-and-play system with a stackable modular design, making it simple to expand your setup – even post-installation.

Real-Time Monitoring

Track your battery’s performance with ease using your smartphone or tablet. Access live data, historical charge logs, and configure charging schedules to take advantage of off-peak energy rates.

Product Code: EQM2900
Learn More: Fox ESS Energy Cube Factsheet

Fox ESS Integrations

Earn extra from your Fox ESS battery

Axle Energy runs a free Virtual Power Plant (VPP) that works with Fox ESS batteries and inverters. It occasionally exports energy from your system to support the grid - and pays you for taking part.

• £25 signup bonus when you join via our link
• £10/month minimum earnings guaranteed
• £1 per kWh exported during events

Earn £10/month & join the Axle VPP

Switch to the UK’s most awarded energy supplier
Switch to Octopus Energy and you’ll get £50 credit once your switch is complete. Existing customer? Find out how you can benefit too. T&Cs apply (only one switching offer per household).

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Downloads

Datasheet – Fox EQ2900 2.88kWh Battery
Installation Guide for Fox ESS EQ Series
User Manual for Fox ESS EQ Series
Fox ESS Battery Warranty Policy (UK) (V4.4)

Fox ESS Battery Compatability Sheet

Fox Energy Cube (EC, EQ) Upgrade Guide – How to add a Battery to an Existing System

Video – Fox Energy Cube Series