Fox ESS EP6 Plus | 5.76kWh High Voltage LFP Battery | Built In Fire Suppressant | Heating Element
£1,120.00 + VAT
Fox ESS EP6 Plus 5.76kWh Battery with Heating Element & Fire Suppressant
#2: FE-HV-EP6-H#3: 7429
FOX EP6 Data Sheet
FOX EP6 User Manual
FOX Warranty
(not compatible with EP5)
Scalable Lithium Iron Phosphate Battery for Hybrid & AC Systems - Compact, efficient, and built for UK weather conditions
The Fox ESS EP6 Plus is a high-performance LFP (LiFePO₄) battery designed for high-voltage energy storage systems. With a nominal capacity of 5.76kWh, it’s ideal for homeowners and small commercial users looking to enhance solar energy storage, backup power, or grid independence.
This modular battery can be expanded up to 23.04kWh using up to four units in parallel, connected via the Fox ESS 4-way junction box. Thanks to its built-in self-heating function, the EP6 Plus delivers stable charging and discharging performance even in cold UK climates
Key Features
5.76kWh nominal energy capacity
Expandable to 23.04kWh (up to 4 batteries per inverter port)
Self-heating technology for operation in low temperatures
>95% round-trip efficiency
Compact and IP65-rated for indoor or outdoor installation
Compatible with all Fox ESS hybrid and AC inverters
10-Year Manufacturer Warranty
Technical Specifications
Battery Type: LFP (LiFePO₄)
Nominal Energy: 5.76kWh
Operating Voltage: 174V – 213V
Max Charge Current: 30 A
Max Discharge Current: 30 A
Depth of Discharge: 90%
Round-Trip Efficiency: >95%
Scalability: Max 4 units in parallel
Weight: 51kg
Dimensions: 380 x 640 x 185mm
IP Rating: IP65
Operating Temp: -25°C to 55°C
Inverter Compatibility - Works Seamlessly With:
Fox ESS 1-Phase Hybrid Inverters
Fox ESS 3-Phase Hybrid Inverters
Fox ESS AC-Coupled Inverters
Combine the EP6 Plus with any compatible Fox ESS inverter for a high-efficiency, smart energy system tailored to your power needs.
Ideal For:
UK homes with solar PV systems
Energy storage in cold climates
EV charger support
Backup power and off-grid setups
Small commercial solar systems
What’s in the Box?
1x Fox ESS EP6 Plus Battery (5.76kWh)
Installation & user manuals
Mounting hardware (if required)
Warranty registration documents
Why Choose the Fox ESS EP6 Plus?
With its compact design, expandable capacity, and cold-weather resilience, the EP6 Plus is a flexible and future-proof energy storage solution. Its compatibility with the full Fox ESS inverter range makes it a great choice for new installations or system upgrades.
Fox ESS EP12 Plus | 11.52kWh High Voltage LFP Battery | Built In Fire Suppressant | Heating Element
£2,106.00 + VAT
Fox ESS EP12 Plus 11.52kWh Battery with Heating Element & Fire Suppressant
#3: 7430 #2: FE-HV-EP12-H
FOX EP12 Data Sheet
FOX EP12 User Manual
FOX ESS EP12 Installation Guide
FOX Warranty
(not compatible with EP11)
Future-proof your energy storage with the Fox ESS EP12 Plus – a durable, high-performance LFP battery designed for residential and commercial energy systems.
Scalable Lithium Iron Phosphate Battery for Hybrid & AC Systems
The Fox ESS EP12 Plus is a high-voltage lithium iron phosphate (LFP) battery with a nominal capacity of 11.52kWh. Designed for long-lasting, scalable energy storage, it can be expanded up to 46.08kWh (per inverter port) using the Fox ESS 4-way junction box.
With built-in self-heating technology, the EP12 Plus ensures optimal performance even in extreme cold. This makes it a perfect choice for UK homes and businesses looking for efficient year-round energy storage.
It integrates seamlessly with Fox ESS’s full range of single-phase (1ph) and three-phase (3ph) hybrid and AC inverters, delivering reliable energy for self-consumption, backup power, or EV charging support.
Key Features
11.52kWh Nominal Capacity
Expandable to 46.08kWh per inverter port (4 units in parallel)
>95% Round-Trip Efficiency
Integrated Self-Heating for low-temperature environments
IP65-Rated – suitable for indoor & outdoor installation
10-Year Manufacturer Warranty
Technical Specifications
Battery Type: LFP (LiFePO₄)
Nominal Energy: 11.52kWh
Operating Voltage: 348V – 438V
Max Charge Current: 30 A
Max Discharge Current: 30 A
Depth of Discharge: 90%
Round-Trip Efficiency: >95%
Scalability: Max 4 units in parallel
Weight: 98kg
Dimensions: 710 x 640 x 185mm
IP Rating: IP65
Operating Temp: -25°C to 55°C
Inverter Compatibility - Works Seamlessly With:
Fox ESS 1-Phase Hybrid Inverters
Fox ESS 3-Phase Hybrid Inverters
Fox ESS AC-Coupled Inverters
Ideal For:
Solar energy storage (on-grid & off-grid)
Residential battery backup systems
Commercial & agricultural energy systems
EV charging energy reserves
Power backup during outages
What’s in the Box?
1x Fox ESS EP12 Plus Battery (11.52kWh)
Installation guide & user manual
Mounting hardware (if applicable)
Warranty & registration documents
Why Choose the EP12 Plus?
The Fox ESS EP12 Plus is engineered for long-term energy independence, high performance, and reliable scalability. Whether you're starting a new solar installation or upgrading an existing setup, it’s a smart investment backed by industry-leading technology and support.
Fox ESS EP5 5.18kWh Battery
£1,195.00 + VAT
Fox ESS EP5 5.18kWh Battery with 10 Year Warranty
#2:FE-HV-EP5-10Y Storage Systems - Li-ion Battery Pack
FOX EP5 Data Sheet
FOX EP5 User Manual
FOX Warranty
FOX Battery Sizing Guide
The Fox ESS EP5 is a high-performance, scalable battery storage system. With maximum flexibility, it is suitable for a wide range of storage applications. With a FE-JUNBOX-HV, additional batteries can be installed in parallel allowing for a maximum storage capacity of 20.8kWh.
(EP series are only compatible with the same EP model/size)
Don't forget: You must register your install with Fox online to activate the 10 year battery warranty, otherwise it's 5 years as standard
Features
90% Depth of Discharge
Scalable to 20.8 kWh
Floor or Wall Mounting
Compact and easy to install
IP65 Rated
High voltage and high efficiency
Warranty 5 years + 5 year extended warranty
Fox ESS EP5 Specs
Weight: 50.5kg
Nominal Energy: 5,180Wh
Voltage: 115 V
Continuous Discharge Rate (Normal Use): 5,184 W
Maximum Discharge Rate: 5,184 W
Surge Discharge Rate (15 seconds): 12,480 W
Maximum Charge Rate: 5,184
Fox EQ2900 2.88kWh HV Battery (Slave) V2.0 Connector Type A
£755.00 + VAT
Fox EQ2900 2.88kWh HV Battery (Slave)
#2: FE-HV-EQS-2900
Fox EQ2900 Datasheet
Fox EQS2900 Manual
Fox EQS2900 Warranty
EQ2900 (2.88 kWh) master and ECS2900 variants from the same EQ/ECS family are interoperable as long as they use the same high-voltage platform and connector type.
Fox EQ High Voltage Battery – Slave Module (EQS2900)
The Fox EQS2900 is a high-performance high-voltage battery slave module, designed to expand the capacity of the Fox EQ modular battery system. Built for flexibility, reliability, and fast installation, the EQ range is ideal for residential and light commercial energy storage applications where scalable capacity and long-term performance are essential.
The modular, plug-and-play design allows additional battery modules to be added in series, enabling systems to grow as energy demands increase — all while maintaining efficient high-voltage operation and seamless inverter communication.
Key Features & Benefits
2.88 kWh usable capacity per module
Scalable system design – expand up to 20.16 kWh
High voltage architecture for improved system efficiency
90% depth of discharge (DoD) for maximum usable energy
Wide operating temperature tolerance for reliable year-round performance
CAN communication for stable inverter integration
Fast plug-and-play installation, reducing install time and labour costs
System Configuration Requirements
Minimum configuration:
2 modules required (1 × Master + 1 × Slave)
Maximum configuration:
Up to 7 modules per stack (1 × Master + 6 × Slaves)
Slave modules cannot operate independently and must be paired with a Fox EQ Master module.
Technical Specifications
Weight: 33 kg
Battery Type: Lithium-ion
Nominal Energy: 2.88 kWh (2880 Wh)
Depth of Discharge (DoD): 90%
Nominal Voltage: 52 V
Continuous Discharge Power (Normal Operation): 1.44 kW
Maximum Discharge Power (5 minutes): 2.88 kW
Surge Discharge Power (15 seconds): 3.0 kW
Maximum Charge Power (5 minutes): 2.88 kW
2
Fox ESS Cube HV ECS2900 V2 2.88kWh Slave Battery Connector Type A
£765.00 + VAT
Fox Cube HV ECS2900 V2 2.88kWh Slave battery Connector Type A
#2: FE-HV-ECS-2900-4A2C #3: 6001
Fox ECS2900 Datasheet
Fox ECS2900 Manual
Fox ECS2900 Warranty
If purchasing to add to an existing system please check if you have V2 with A connector batteries on your existing system.
How to check if you have Type A or B
TYPE A BATTERIES
Serial Number Prefix 60JM292 / KM292 / 8M292 / QM292
TYPE B BATTERIES
Serial Number Prefix 60CM292 / TM292
Suitable for charging from the grid such as Economy 7 & Octopus Go. For detailed explanation of how to maximize Economy 7 essential information to work out which battery storage options is best for you please visit - Understanding Economy 7
Compatible with Fox HV chargers only available on our Fox HV main page
Energy cube 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 20.16 kWh. Installation is easy, with a plug and play solution that can save valuable time for installers.
2.88kWh Capacity
Scalable to 20.16kWh
90% Depth of Discharge
Wide Temperature Tolerence
Easy Installation
CAN/RS485 Communication
High Voltage
Weight: 32.4 kgBattery Type: Lithium IonNominal Energy: 2880 WhDepth of discharge: 90.00 %Voltage: 52 VContinuous Discharge Rate (Normal Use): 1440 WMaximum Discharge Rate (5 Minutes): 2880 WSurge Discharge Rate (15 Seconds): 3000 WMaximum Charge Rate (5 Minutes): 2880 W
Fox ESS Cube ECS2900 2.88kWh V2 HV Battery (Master) Type B
£808.00 + VAT
Fox ECS2900 2.88kWh HV Battery (Master)
#1: FE-HV-ECM-2900
Fox ECS2900 Datasheet
Fox ECS2900 Manual
Fox ECS2900 Warranty
*Cube batteries from ITS are V2 with B connector, if purchasing to add to an existing system please check if you have V2 with B connector batteries on your existing system.
Fox ECS 2.88kWh HV Battery – High-Performance Modular Storage
The Fox ECS Battery is a high-performance, scalable high-voltage (HV) battery storage system, compatible exclusively with Fox HV chargers. Designed with a modular approach, it provides maximum flexibility, making it ideal for residential and commercial energy storage applications. Expand your system with additional batteries to achieve up to 20.16 kWh of storage.
Key Features
2.88kWh Capacity – compact yet powerful
Scalable to 20.16kWh – add more modules as your energy needs grow
90% Depth of Discharge – maximizes usable energy
Wide Temperature Tolerance – reliable performance in varied climates
Easy Installation – plug and play system saves time for installers
CAN/RS485 Communication – seamless integration with compatible systems
High Voltage Operation – efficient energy transfer
Technical Specifications
Weight: 34.7 kg
Rated Power: 2,880 W
Battery Type: Lithium Ion
Nominal Energy: 2,880 Wh
Depth of Discharge: 90%
Voltage: 52 V
Continuous Discharge Rate (Normal Use): 1,440 W
Maximum Discharge Rate (5 Minutes): 2,880 W
Surge Discharge Rate (15 Seconds): 3,000 W
Maximum Charge Rate (5 Minutes): 2,880 W
Why Choose Fox ECS Batteries?
The Fox ECS 2.88kWh HV Battery is designed for flexible, scalable energy storage. Its modular design and plug-and-play installation make it ideal for expanding existing systems or starting a new high-voltage storage setup. Perfect for homeowners or businesses seeking reliable, efficient, and safe energy storage solutions.
Fox ESS Cube ECS4300, 4.14kWh HV Battery (Master)
£1,041.00 + VAT
Fox ECS 4.14kWh HV Battery (Master)
#2: FE-HV-ECM-4300 Storage Systems - Li-ion Battery Pack
Fox ECM4300 Datasheet
Fox Product Compatibility
Fox ECM4300 User Manual
Fox ECM4300 Warranty
Fox ECS Solar Battery Storage – Scalable Energy Storage Solution
The Fox ECS Solar Battery Storage System is a high-performance, modular energy storage solution designed for flexibility and scalability. With a modular design, additional batteries can be added to achieve a maximum storage capacity of 29.03 kWh, making it suitable for a wide range of residential and commercial applications.
Key Features
Plug-and-play installation for fast and easy setup
4.14 kWh per module, scalable up to 29.03 kWh
90% Depth of Discharge for maximum usable energy
Wide temperature tolerance for reliable operation
CAN/RS485 communication for smart system integration
High-voltage design for efficient energy transfer
Technical Specifications
Specification
Details
Weight
38.3 kg
Rated Power
4,300 W
Battery Type
Lithium-ion
Nominal Energy
4,145 Wh
Depth of Discharge
90%
Voltage
57 V
Continuous Discharge Rate
2,875 W
Maximum Discharge Rate (5 min)
2,875 W
Surge Discharge Rate (15 sec)
3,737 W
Maximum Charge Rate (5 min)
2,875 W
Installation Notes
Minimum of 2 modules required (1 Master + 1 Slave)
Supports up to 7 modules in a stack (1 Master + 6 Slaves)
When adding modules to an existing Energy Cube stack, ensure compatibility with existing battery modules
Must be installed by a qualified electrician
Why Choose Fox ECS Battery Storage?
The Fox ECS Solar Battery is ideal for UK homeowners and businesses seeking a reliable, scalable, and efficient energy storage solution. Its modular design, smart communication features, and high depth of discharge enable maximum self-consumption of solar energy, providing flexible, long-term energy independence.
Order now from ITS Technologies – your trusted UK supplier of Fox batteries, solar PV systems, and energy storage solutions.
Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ESS Cube EQ4800, 4.66kWh HV Battery (Slave)
£1,115.00 + VAT
Fox EQ4800, 4.66kWh HV Battery (Slave)
#2: FE-HV-EQS-4800 Storage Systems - Li-ion Battery Pack
Fox's EQ is a high-performance, scalable battery storage system. Its modular design allows for maximum flexibility. The Fox EQ is suitable for a wide range of storage applications. Additional batteries can be added with a maximum storage capacity of 41.94kWh.
EQ4800 are compatible with ECS-4800 batteries
Fox EQ4800 Datasheet
Fox Product Compatibility
Fox EQ4800 Warranty
Modular Energy Storage Solution for Homes and Small Businesses
The Fox EQ4800 (FE-HV-EQS-4800) is a high-performance lithium-ion battery module designed for scalable high-voltage energy storage systems. With a nominal capacity of 4.66kWh, this slave unit offers seamless integration with other EQ series batteries, enabling expandable storage up to 41.94kWh (1 master + 8 slave units).
Designed for hybrid solar, backup, and off-grid systems, the Fox EQ4800 is ideal for UK homes and commercial applications seeking reliable, modular power storage. Its plug-and-play installation, wide temperature tolerance, and high discharge efficiency make it a trusted choice for installers and system designers.
Key Benefits
4.66kWh Nominal Capacity
Modular & Scalable – Expandable up to 41.94kWh (1 master + 8 slaves)
Wide Temperature Tolerance – Built for UK weather conditions
Plug & Play Design – Fast, simple installation
90% Depth of Discharge – Maximised usable capacity
CAN/RS485 Communication – Reliable and fast system integration
High Voltage Battery – Compatible with Fox ECS series systems
Backward Compatible – Works with older ECM/S-4800 models
Please Note: A 2 module minimum is required for operation (1 master + 1 slave). Must be installed by a certified electrician. To active the extended 12-year extended warranty register online with Fox ESS
Technical Specifications
Specification
Value
Battery Type
Lithium-Ion (Li-ion)
Nominal Energy
4.66kWh / 4660Wh
Rated Power
4,660W
Voltage
45V
Depth of Discharge (DoD)
90%
Continuous Discharge Rate
2,225W
Maximum Discharge Rate (5 min)
4,450W
Surge Discharge Rate (15 sec)
3,000W
Maximum Charge Rate (5 min)
4,450W
Scalability
Up to 41.94kWh
Communication
CAN/RS485
Weight
41.5kg
Why Choose the Fox ESS Cube EQ488 4.66Wh HV Battery?
Future‑proofing your energy system: If you install a smaller system now but anticipate higher usage (EV charging, home battery backup, increasing self‑consumption of solar), having a system that can grow is a major advantage.
Cost‑effectiveness: By buying a slave module instead of a whole new standalone system, you’re optimising investment by utilising what you already have and increasing capacity only as needed.
Less grid dependence: Expanded storage means you can store more of your solar generation (if you have PV), or have more backup capacity during power cuts/peak tariffs.
Installation efficiency: The simpler install and compatibility reduce labour risk and installation complexity — beneficial both for homeowners and for installers.
Warranty & support: Products from this family (by Fox ESS) emphasise correct installation and registration to unlock extended warranties (helping buy‑in confidence)
Fox ESS | Evo 10.0 kW + 10.24 kWh | All In One System | Fire Suppressant | IP66 | Heating Elelement | 95% DoD
£3,301.00 + VAT
Fox ESS Evo 10.0 kW + 10.24 kWh Integrated Storage & Inverter System
#2: FE-EVO10-10H
Fox Evo 10kW Datasheet
Fox Evo 10kW User Manual
Fox Firmware Upgrade
Fox ESS Evo 10.0kW + 10.24kWh Battery Storage System UK
Introducing the Fox ESS Evo Series 10.0 kW with 10.24 kWh all-in-one inverter + battery solution — the ideal hybrid storage system for homes and small commercial installations. This integrated unit combines inverter, battery, smart switching (EPS), and monitoring in a sleek, minimalist enclosure optimised for indoor or outdoor installation.
Fully integrated inverter + Li‑ion battery (no external battery required)
Single system with EPS (Emergency Power Supply) built in
Elegant, compact design suited to both indoor and outdoor use
Scalable architecture: expand to 30.72 kWh via parallel modules
This unit is perfect for customers seeking a reliable, compact solar battery system with high efficiency and smart control features.
Key Benefits
Seamless solar + battery integration — simplifies system design, reduces wiring and installation time
Backup power automatically — the EPS function ensures essential loads are sustained during grid outages
Scalable storage capacity — start with 10.24 kWh and grow your system as demand increases
High performance — capable of 200% PV oversizing, high round‑trip efficiency, and robust protection
Outdoor deployment ready — IP66 protection rating ensures durability in harsh environments
Use this system in: rooftop solar + battery projects, zero-export scenarios, self-consumption optimization, off-grid transitions, and backup power installations.
Technical Specifications: Inverter
Inverter Rating
10.0 kW (nominal)
PV Oversize Capability
200% (i.e. can accept up to 20 kW PV input)
MPPT Inputs
3 independent MPPT channels
Start-up Voltage
80 V
Current Limits
20 A / 25 A Imp / Isc
Emergency Power Supply (EPS)
Yes — supports 200% overload in EPS mode
Export Limitation
CT / Meter / DRM0 / E‑Stop compatible
Communication
Integrated Wi-Fi (no external dongle required)
Parallel Mode
Up to 3 modules in parallel
Protection / Ingress Rating
IP66 (dusttight & powerful water jets resistant)
Weight
115 kg
Display / Interface
LCD screen with magnetic protective cover
Technical Specifications: Battery
Battery Type
LiFePO₄ (LFP) integrated
Usable Capacity
10.24 kWh
Maximum Scalable Capacity
30.72 kWh (via parallel modules)
Maximum Charge / Discharge Rate
Up to 10 kW per unit
Depth of Discharge (DoD)
95 %
Warm-up / Heating
Integrated battery warm-up system
Fire Safety
Built‑in fire suppressant
Protection Rating
IP66 (sealed for outdoor use)
Round-trip Efficiency
High (manufacturer‑specified)
Why Choose the Fox ESS Evo 10.0 kW System?
All-in-One Simplicity — no separate inverter + battery boxes. Everything built into one unit.
Efficiency & Performance — supports 200% PV oversizing, ensuring you can maximise solar input.
Scalability & Flexibility — add more units later to scale capacity and flexibility.
Robust Safety Features — built-in fire suppression, integrated battery heating, and durable IP66 enclosure.
Please note: The standard warranty on the product is 5 years but it could be extended to 10 years in total after successful registration on the Fox website below.
https://www.fox-ess.com/warranty-registration-2/
Fox EQ2900 2.88kWh HV Battery (Master) V2.0 Connector Type A
£773.00 + VAT
Fox EQ2900 2.88kWh HV Battery (Master)
#2: FE-HV-EQM-2900#3: EQ2900-M
Fox EQ2900 Datasheet
Fox EQS2900 Manual
Fox EQS2900 Warranty
EQ2900 (2.88 kWh) master and ECS2900 variants from the same EQ/ECS family are interoperable as long as they use the same high-voltage platform and connector type.
Fox EQ2900 2.88kWh High-Voltage Battery (Master) – Connector Type A
Part No: FE-HV-EQM-2900Category: Storage Systems – Li-ion Battery Pack
The Fox EQ2900 High-Voltage Battery (Master) is a modular lithium battery designed for scalable residential and light commercial energy storage systems. As part of the Fox EQ high-voltage battery range, the EQ2900 delivers reliable performance, flexible system expansion, and fast installation through a true plug-and-play design.
With 2.88kWh usable capacity per module, the system can be expanded to suit growing energy demands, making it ideal for homeowners seeking future-proof battery storage.
Modular & Scalable Energy Storage
The Fox EQ system is designed for maximum flexibility. Battery modules are connected in series, allowing storage capacity to grow as required.
Key scalability details:
2.88kWh capacity per module
Scalable up to 20.16kWh
Minimum configuration: 2 modules (1 × Master + 1 × Slave)
Maximum configuration: 7 modules per stack (1 × Master + 6 × Slaves)
This modular architecture makes the EQ system suitable for a wide range of storage applications while keeping system design simple.
High-Voltage Performance & Efficiency
The EQ2900 operates as a high-voltage battery, enabling efficient energy transfer and compatibility with Fox high-voltage hybrid and AC-coupled inverters.
Performance highlights include:
90% depth of discharge (DoD) for high usable capacity
High round-trip efficiency
Wide operating temperature tolerance for reliable year-round performance
Installer-Friendly Design
Designed to save time on site, the EQ battery range features a streamlined installation process with minimal wiring.
Installation benefits:
Plug-and-play battery modules
Compact, stackable design
CAN / RS485 communication for system integration
Clear Master / Slave architecture for straightforward commissioning
Compatibility & System Expansion Notice
When adding EQ battery modules to an existing Energy Cube or EQ stack, it is essential that new batteries are compatible with the original modules.
Important:Please contact ITS Technologies or your installer before expanding an existing system to confirm correct compatibility and configuration.
Safety & Installation Requirements
This product must be installed by a qualified electrician or certified installer. All installations must comply with local wiring regulations and electrical standards.
ITS Technologies accepts no liability for product malfunctions resulting from incorrect installation or non-compliant system design.
Key Specifications at a Glance
Battery Type: High-Voltage Lithium-ion
Module Capacity: 2.88kWh
Max System Capacity: 20.16kWh
Configuration: 1 × Master + up to 6 × Slave modules
Depth of Discharge: 90%
Communication: CAN / RS485
Connector Type: Type A