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FOX ESS Energy Cube CS2900 high voltage 2.88kW Slave Battery

SKU: CS2900

Energy Cube is a powerful, scalable battery storage system. The modular design allows maximum flexibility and is suitable for a wide range of storage applications. Additional batteries can be connected in series for a maximum storage capacity of 20.16 kWh. Installation is easy, with a plug-and-play solution that can save installers valuable time.

Available in delivery or click&collect

EX. VAT: £1,064.56


  • 2.88kWh capacity
  • Scalable to 20.16kWh
  • 90% depth of discharge
  • Large temperature tolerance
  • Easy installation
  • CAN/RS485 communication
  • High tension
  • Weight: 32.4kg
  • Battery Type: Lithium Ion
  • Nominal Energy: 2880Wh
  • Depth of discharge:90.00%
  • Voltage:52V
  • Continuous Discharge Rate (Normal Use):1440W
  • Maximum Discharge Rate (5 Minutes): 2880W
  • Surge Discharge Rate (15 Seconds):3000W
  • Maximum Charge Rate (5 Minutes): 2880W

Frequently asked questions

Solar panel battery storage systems allow homeowners to store excess energy generated by their solar panels for later use. This stored energy can be used during periods when the solar panels are not producing electricity, such as at night or during cloudy days.

Solar panels generate electricity during daylight hours. Any excess electricity that is not used immediately can be stored in a battery. When the solar panels are not generating electricity, the stored energy in the battery can be used to power the home.

Benefits include increased energy independence, reduced electricity bills, backup power during outages, and the ability to maximize the use of renewable energy generated by your solar panels.

The most common types of batteries used for solar storage are lithium-ion batteries, lead-acid batteries, and flow batteries. Lithium-ion batteries are the most popular due to their high efficiency, longer lifespan, and lower maintenance requirements.

Yes, it is possible to add a battery to an existing solar panel system. However, it is important to ensure compatibility between the battery and the existing system. Consulting with a professional installer is recommended.

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