
Fox Energy Cube CS2900 Slave Battery 2.9kW (version 2 green label)
CS2900
Fox Energy Cube CS2900 Slave Battery 2.9kW (Version 2 Green Label) - Scalable Storage for Flexible Energy Management
The Fox Energy Cube CS2900 Slave Battery is a high-performance, scalable energy storage solution designed for versatile applications. With its modular design, this system allows for easy expansion to meet growing energy demands. The plug-and-play installation process ensures a quick setup, saving valuable time for installers.
Please note: This is the Green Label Version 2 with a Type A connector.
- Modular & Scalable Design: Can be connected in series to achieve up to 20.16kWh of storage capacity.
- Efficient Power Output: Delivers a continuous discharge rate of 1440W and maximum discharge rate of 2880W for reliable performance.
- Easy & Quick Installation: Plug-and-play solution designed to simplify and speed up the installation process.
- High-Performance Battery: 2.88kWh nominal energy with 90% depth of discharge for optimal efficiency and longevity.
- Reliable Communication: Supports CAN/RS485 communication for smooth integration with other systems.
Technical Specification
- Weight: 32.4kg
- Battery Type: Lithium Ion
- Nominal Energy: 2880Wh
- Voltage: 52V
- Depth of Discharge: 90%
✅ Upgrade your energy storage with the Fox Energy Cube CS2900 Slave for scalable and efficient power management!

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.