
Fox Energy Cube CS2900 Slave Battery 2.9kW (version 2 green label)
CS2900
Fox Energy Cube CS2900 Slave
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.
Please note these are Green Labelled Version 2
Type A Connector

Fox Energy Cube CS2900 Slave Battery 2.9kW
The ECS is a high-performance, scalable battery storage system. The modular design allows for maximum flexibility, making it suitable for a broad range of storage applications.
Additional batteries can be installed in series, allowing for a maximum storage capacity of 20.16kWh.
Installation is easy, with a plug and play solution that can save valuable time for installers.
Specifications
- 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
- 2.88kWh capacity
- Scalable to 20.16kWh
- 90% depth of discharge
- Large temperature tolerance
- Easy installation
- CAN/RS485 communication
- High tension
Product | Battery |
Type | Slave |
Nominal Power Output | 2.9 kW |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.