Fox ESS PQ1 | 5kW AIO Options | Fire Suppressant | Heating Element | IP66 | Built in EPS Box
from £3,277.00 + VAT
Fox ESS PQ Series Hybrid Inverter & EQ5000 Battery Storage System
#2: FE-PQ1-5.0-EQ-10
FOX PQ Data Sheet
FOX PQ User Manual
FOX ESS PQ Installation Guide
FOX PQ Warranty
The Fox ESS PQ Series is a powerful next-generation single-phase hybrid solar and battery storage system, combining high-output hybrid inverter technology with scalable EQ5000 LFP battery storage.
Available with 5kW, 8kW, 10kW or 12kW hybrid inverter options and a choice of 2 to 6 x EQ5000 battery modules, the system can be configured to suit a wide range of residential energy requirements.
Designed for high solar generation, large household loads and increased energy independence, the PQ Series supports up to 200% PV oversizing, multiple MPPTs and high-current solar panels. Its modular stackable battery design also makes it easy to increase storage capacity as energy requirements grow.
With an integrated 63A bypass and ultra-fast <4ms backup switchover, the PQ Series is also ideally suited to installations requiring comprehensive backup capability during a grid outage.
Choose Your System
Hybrid Inverter: 5kW, 8kW, 10kW or 12kW single-phase
Battery Storage: 2–6 x Fox ESS EQ5000 LFP battery modules
Modular, stackable design for a clean and compact installation
Expandable battery capacity to suit changing energy requirements
Key Benefits
High-power 5kW, 8kW, 10kW & 12kW single-phase hybrid inverter options
Scalable Fox ESS EQ5000 LFP battery storage
Choice of 2–6 battery modules
Up to 24kW PV input capacity
Up to 4 MPPTs for flexible solar array design on 8kW+ models
20A PV input per string, compatible with modern high-power solar panels
Up to 200% PV oversizing
Integrated 63A bypass for full-house backup applications
<4ms automatic backup switchover
Parallel operation of up to 3 systems
IP66-rated for indoor or outdoor installation
Remote system monitoring through the FoxCloud app and web portal
Ready for AI energy management and Virtual Power Plant (VPP) applications
Modular design allows future battery expansion
Advanced Solar & Battery Management
The PQ Series is designed to maximise the amount of solar energy generated, stored and used within the property. Excess solar generation can be directed into the EQ5000 battery bank for use later in the day, helping to reduce grid consumption and maximise solar self-consumption.
The system can also be configured around compatible time-of-use electricity tariffs, allowing batteries to be charged during lower-cost periods and discharged when grid electricity is more expensive.
Whole-Home Backup Capability
With an integrated 63A bypass and backup switchover of less than 4ms, the PQ Series provides a powerful platform for whole-home backup installations when designed and installed accordingly.
Smart Monitoring
FoxCloud provides remote access to system performance, including solar generation, battery state of charge, household consumption and grid import/export, allowing users to monitor and manage their energy system from their phone or web browser.
Fox ESS PQ1 | 8kW AIO Options | Fire Suppressant | Heating Element | IP66 | Built in EPS Box
from £3,285.00 + VAT
Fox ESS PQ Series Hybrid Inverter & EQ5000 Battery Storage System
#2: FE-PQ1-5.0-EQ-10
FOX PQ Data Sheet
FOX PQ User Manual
FOX ESS PQ Installation Guide
FOX PQ Warranty
The Fox ESS PQ Series is a powerful next-generation single-phase hybrid solar and battery storage system, combining high-output hybrid inverter technology with scalable EQ5000 LFP battery storage.
Available with 5kW, 8kW, 10kW or 12kW hybrid inverter options and a choice of 2 to 6 x EQ5000 battery modules, the system can be configured to suit a wide range of residential energy requirements.
Designed for high solar generation, large household loads and increased energy independence, the PQ Series supports up to 200% PV oversizing, multiple MPPTs and high-current solar panels. Its modular stackable battery design also makes it easy to increase storage capacity as energy requirements grow.
With an integrated 63A bypass and ultra-fast <4ms backup switchover, the PQ Series is also ideally suited to installations requiring comprehensive backup capability during a grid outage.
Choose Your System
Hybrid Inverter: 5kW, 8kW, 10kW or 12kW single-phase
Battery Storage: 2–6 x Fox ESS EQ5000 LFP battery modules
Modular, stackable design for a clean and compact installation
Expandable battery capacity to suit changing energy requirements
Key Benefits
High-power 5kW, 8kW, 10kW & 12kW single-phase hybrid inverter options
Scalable Fox ESS EQ5000 LFP battery storage
Choice of 2–6 battery modules
Up to 24kW PV input capacity
Up to 4 MPPTs for flexible solar array design on 8kW+ models
20A PV input per string, compatible with modern high-power solar panels
Up to 200% PV oversizing
Integrated 63A bypass for full-house backup applications
<4ms automatic backup switchover
Parallel operation of up to 3 systems
IP66-rated for indoor or outdoor installation
Remote system monitoring through the FoxCloud app and web portal
Ready for AI energy management and Virtual Power Plant (VPP) applications
Modular design allows future battery expansion
Advanced Solar & Battery Management
The PQ Series is designed to maximise the amount of solar energy generated, stored and used within the property. Excess solar generation can be directed into the EQ5000 battery bank for use later in the day, helping to reduce grid consumption and maximise solar self-consumption.
The system can also be configured around compatible time-of-use electricity tariffs, allowing batteries to be charged during lower-cost periods and discharged when grid electricity is more expensive.
Whole-Home Backup Capability
With an integrated 63A bypass and backup switchover of less than 4ms, the PQ Series provides a powerful platform for whole-home backup installations when designed and installed accordingly.
Smart Monitoring
FoxCloud provides remote access to system performance, including solar generation, battery state of charge, household consumption and grid import/export, allowing users to monitor and manage their energy system from their phone or web browser.
Fox ESS PQ1 | 10kW AIO Options | Fire Suppressant | Heating Element | IP66 | Built in EPS Box
from £3,298.00 + VAT
Fox ESS PQ Series Hybrid Inverter & EQ5000 Battery Storage System
#2: FE-PQ1-5.0-EQ-10
FOX PQ Data Sheet
FOX PQ User Manual
FOX ESS PQ Installation Guide
FOX PQ Warranty
The Fox ESS PQ Series is a powerful next-generation single-phase hybrid solar and battery storage system, combining high-output hybrid inverter technology with scalable EQ5000 LFP battery storage.
Available with 5kW, 8kW, 10kW or 12kW hybrid inverter options and a choice of 2 to 6 x EQ5000 battery modules, the system can be configured to suit a wide range of residential energy requirements.
Designed for high solar generation, large household loads and increased energy independence, the PQ Series supports up to 200% PV oversizing, multiple MPPTs and high-current solar panels. Its modular stackable battery design also makes it easy to increase storage capacity as energy requirements grow.
With an integrated 63A bypass and ultra-fast <4ms backup switchover, the PQ Series is also ideally suited to installations requiring comprehensive backup capability during a grid outage.
Choose Your System
Hybrid Inverter: 5kW, 8kW, 10kW or 12kW single-phase
Battery Storage: 2–6 x Fox ESS EQ5000 LFP battery modules
Modular, stackable design for a clean and compact installation
Expandable battery capacity to suit changing energy requirements
Key Benefits
High-power 5kW, 8kW, 10kW & 12kW single-phase hybrid inverter options
Scalable Fox ESS EQ5000 LFP battery storage
Choice of 2–6 battery modules
Up to 24kW PV input capacity
Up to 4 MPPTs for flexible solar array design on 8kW+ models
20A PV input per string, compatible with modern high-power solar panels
Up to 200% PV oversizing
Integrated 63A bypass for full-house backup applications
<4ms automatic backup switchover
Parallel operation of up to 3 systems
IP66-rated for indoor or outdoor installation
Remote system monitoring through the FoxCloud app and web portal
Ready for AI energy management and Virtual Power Plant (VPP) applications
Modular design allows future battery expansion
Advanced Solar & Battery Management
The PQ Series is designed to maximise the amount of solar energy generated, stored and used within the property. Excess solar generation can be directed into the EQ5000 battery bank for use later in the day, helping to reduce grid consumption and maximise solar self-consumption.
The system can also be configured around compatible time-of-use electricity tariffs, allowing batteries to be charged during lower-cost periods and discharged when grid electricity is more expensive.
Whole-Home Backup Capability
With an integrated 63A bypass and backup switchover of less than 4ms, the PQ Series provides a powerful platform for whole-home backup installations when designed and installed accordingly.
Smart Monitoring
FoxCloud provides remote access to system performance, including solar generation, battery state of charge, household consumption and grid import/export, allowing users to monitor and manage their energy system from their phone or web browser.
Fox ESS PQ1 | 12kW AIO Options | Fire Suppressant | Heating Element | IP66 | Built in EPS Box
from £3,318.00 + VAT
Fox ESS PQ Series Hybrid Inverter & EQ5000 Battery Storage System
#2: FE-PQ1-5.0-EQ-10
FOX PQ Data Sheet
FOX PQ User Manual
FOX ESS PQ Installation Guide
FOX PQ Warranty
The Fox ESS PQ Series is a powerful next-generation single-phase hybrid solar and battery storage system, combining high-output hybrid inverter technology with scalable EQ5000 LFP battery storage.
Available with 5kW, 8kW, 10kW or 12kW hybrid inverter options and a choice of 2 to 6 x EQ5000 battery modules, the system can be configured to suit a wide range of residential energy requirements.
Designed for high solar generation, large household loads and increased energy independence, the PQ Series supports up to 200% PV oversizing, multiple MPPTs and high-current solar panels. Its modular stackable battery design also makes it easy to increase storage capacity as energy requirements grow.
With an integrated 63A bypass and ultra-fast <4ms backup switchover, the PQ Series is also ideally suited to installations requiring comprehensive backup capability during a grid outage.
Choose Your System
Hybrid Inverter: 5kW, 8kW, 10kW or 12kW single-phase
Battery Storage: 2–6 x Fox ESS EQ5000 LFP battery modules
Modular, stackable design for a clean and compact installation
Expandable battery capacity to suit changing energy requirements
Key Benefits
High-power 5kW, 8kW, 10kW & 12kW single-phase hybrid inverter options
Scalable Fox ESS EQ5000 LFP battery storage
Choice of 2–6 battery modules
Up to 24kW PV input capacity
Up to 4 MPPTs for flexible solar array design on 8kW+ models
20A PV input per string, compatible with modern high-power solar panels
Up to 200% PV oversizing
Integrated 63A bypass for full-house backup applications
<4ms automatic backup switchover
Parallel operation of up to 3 systems
IP66-rated for indoor or outdoor installation
Remote system monitoring through the FoxCloud app and web portal
Ready for AI energy management and Virtual Power Plant (VPP) applications
Modular design allows future battery expansion
Advanced Solar & Battery Management
The PQ Series is designed to maximise the amount of solar energy generated, stored and used within the property. Excess solar generation can be directed into the EQ5000 battery bank for use later in the day, helping to reduce grid consumption and maximise solar self-consumption.
The system can also be configured around compatible time-of-use electricity tariffs, allowing batteries to be charged during lower-cost periods and discharged when grid electricity is more expensive.
Whole-Home Backup Capability
With an integrated 63A bypass and backup switchover of less than 4ms, the PQ Series provides a powerful platform for whole-home backup installations when designed and installed accordingly.
Smart Monitoring
FoxCloud provides remote access to system performance, including solar generation, battery state of charge, household consumption and grid import/export, allowing users to monitor and manage their energy system from their phone or web browser.
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
(Confirmed to be compatible with previous EP5 model)
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
(Confirmed to be compatible with previous EP11 model)
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 Junction Box for paralleling up to 4 EP Batteries
£138.00 + VAT
Fox Junction Box for paralleling up to 4 EP Batteries (EP5/6 or EP11/12)
#2: FE-JUNBOX-HV Storage Systems - Accessory #3: 6021
Fox HV Junction Box Data Sheet
Fox HV Junction Box User Manual
Fox HV Junction Box Quick Install Guide
Fox HV Junction – High Voltage Battery Connector
The Fox HV Junction is a vital accessory for expanding your Fox EP5 or EP11 battery system. It allows safe and reliable parallel connections, making it the perfect solution for scalable high-voltage storage installations.
Key Features
✅ Supports up to 4-way battery parallel connection
✅ Scalable storage – expand your system up to 40kWh
✅ Easy installation – simple plug-and-play setup
✅ Durable protection – IP65 rating for indoor or outdoor use
✅ Lightweight & practical – just 4.5 kg
Why Choose the Fox HV Junction?
Ensures seamless integration with Fox EP5 and EP11 high-voltage batteries
Designed for residential and commercial energy storage systems
Helps future-proof your solar installation with scalable capacity
Built to last with strong housing and weatherproof design
Specifications
Compatible batteries: Fox EP5 & Fox EP11
Max parallel connections: 4
Max system capacity: 40kWh
Protection level: IP65
Weight: 4.5 kg
Ideal For
Homeowners looking to expand existing Fox battery systems
Installers needing a safe, certified junction for multi-battery setups
Businesses scaling up energy storage solutions
🔑 The Fox HV Junction ensures safety, scalability, and simplicity when adding multiple Fox batteries to your high-voltage storage system.
Fox ESS | Evo 5.0 kW + 10.24 kWh | All In One Storage System | Fire Suppressant | IP66 | Heating Elelement | 95% DoD
£3,192.00 + VAT
Fox ESS Evo 5.0 kW + 10.24 kWh Integrated Storage & Inverter System
#2: FE-EVO10-5H
Fox Evo 5.0kW Datasheet
Fox Evo 5.0kW User Manual
Fox Firmware Upgrade
Fox ESS Evo 5.0kW + 10.24kWh Battery Storage System UK
Meet the Fox ESS Evo Series 5.0 kW with 10.24 kWh Li‑ion Battery Pack (EVO10‑5H) — a sleek, all-in-one solar storage and inverter system optimised for residential and light commercial installations in the UK. This integrated hybrid solution offers inverter, battery, and EPS backup features in a compact, weatherproof enclosure.
This all‑in‑one hybrid inverter + battery system has been designed for an indoor or outdoor installation. This integration solution of a powerful inverter, high‑capacity battery, integrated Emergency Power Supply (EPS), and advanced smart monitoring comes in compact and aesthetically pleasing desing.
This product is ideal for homeowners looking to:
Maximise solar self‑consumption
Have built‑in backup power in a grid outage
Deploy a minimalist, weatherproof design
Scale storage later when needed - up to 30.72 kWh
This series is also suitable for light commercial applications where modular expansion is important.
With full UK compatibility (export limiting, CT/meter interaction, DRM/ESTOP), this model is built for the UK solar & storage market.
Key Benefits - Inverter
Maximum Power & Oversizing
5.0 kW inverter output
MPPT & Input Flexibility
2 independent MPPT channels
80 V low start‑up voltage (enhanced early morning / low irradiation performance)
Display & Interface
Built-in LCD display with magnetic cover (for clean aesthetics)
Integrated Wi‑Fi (no external dongle required)
Support for export limitation via CT, meter, DRM0, ESTOP
EPS & Overload Capability
EPS (Emergency Power Supply) mode with up to 200 % overload capability
Parallel mode: up to 3 EVO units in parallel for increased capacity or power
Protection rating: IP66, suitable for outdoor installations
Key Benefits - Battery
Type & Chemistry
Integrated 10.24 kWh LiFePO₄ (LFP) battery
Scalable: up to 30.72 kWh when paralleling multiple units
Performance & Efficiency
Depth of Discharge (DoD): 95 %
High charge/discharge rates: up to 10 kW per unit
High round‑trip efficiency for reduced energy losses
Safety & Environmental Protection
IP66 rated enclosure (dust tight and heavy rain protection)
Integrated battery warm-up (to maintain performance in cold climates)
Built-in fire suppressant system
Technical Specifications: Inverter
Inverter Rating
5.0 kW
PV Oversize Capability
300%
MPPT Inputs
2
On/Off Grid Mode Supported
Start Up Voltage
80 V
Maximum DC Current
20 A / 25 A Imp / Isc
Emergency Power Supply (EPS)
200% capability
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
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 95%
Why Choose the Fox ESS Evo 5.0 kW System?
True all-in-one designCombines inverter + battery + emergency power supply (EPS) in one unit. No need for separate components or complex wiring.
Indoor or outdoor installationWith an IP66 rating, the unit is fully protected against dust and powerful water jets — ideal for exposed sites or internal utility rooms.
Scalable capacityStart with 10.24 kWh, then scale up to 30.72 kWh by adding parallel modules — perfect for growing your storage as your energy needs evolve.
Smart export control & grid complianceExport limitation methods (CT/METER/DRM0/ESTOP) and built‑in EPS ensure compliance with UK grid regulations and offer clean, controlled power management.
Integrated connectivity & monitoringBuilt‑in WiFi (no external dongle required) lets you monitor and manage your system via web or mobile platform.
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 ESS EP5 5.18kWh Battery with heating element
£1,025.00 + 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
(Confirmed to be compatible with new EP6 model)
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
£745.00 + VAT
Fox EQ2900 2.88kWh HV Battery (Slave)
2: FE-HV-EQS-2900
#3: 7203
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
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
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
£697.00 + 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)
£911.00 + 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 EQ5000, 4.92kWh HV Battery (Master)
£1,260.00 + VAT
Fox EQ5000, 4.92kWh HV Battery (Master)
2: FE-HV-EQM-5000 Storage Systems - Li-ion Battery Pack
Fox EQ5000 Datasheet
Fox Product Compatibility
Fox EQ5000 Warranty
🔋 Fox ESS EQM5000 High Voltage Battery Master – 4.92kWh Modular Storage System
The Fox ESS EQM5000 High Voltage Battery Master is part of the Fox ESS EQ high-voltage battery storage system, designed to provide flexible and scalable energy storage for compatible solar and battery installations.
The modular system allows additional battery modules to be connected in series, enabling storage capacity to be expanded up to 29.52kWh. With a plug-and-play design, 90% depth of discharge and CAN/RS485 communication, the Fox EQ battery system provides a flexible solution for growing energy storage requirements.
Important: The EQM5000 is a master battery module and requires a minimum of one compatible slave module to operate.
Modular & Scalable Battery Storage
Expandable Up to 29.52kWh
The Fox ESS EQ battery system is designed with a modular architecture, allowing compatible battery modules to be added as energy storage requirements increase.
The system supports:
Minimum configuration: 2 modules
1 × Master battery
1 × Slave battery
Maximum configuration: 6 modules
1 × Master battery
Up to 5 × Slave batteries
Maximum system capacity: Up to 29.52kWh
This scalable design allows installers and system owners to configure the battery storage system according to current and future energy requirements.
Plug-and-Play Installation
The modular battery design supports straightforward installation, helping reduce installation time when building or expanding a compatible Fox ESS EQ battery stack.
⚡ High-Voltage Battery Performance
90% Depth of Discharge
The EQ battery system supports a 90% depth of discharge (DoD), allowing a significant proportion of the battery's stored energy to be used.
Reliable Charging & Discharging
The battery is designed to support efficient energy storage and delivery within compatible systems.
Performance specifications include:
Continuous discharge rate: 1,440W
Maximum discharge rate (5 minutes): 2,880W
Surge discharge rate (15 seconds): 3,000W
Maximum charge rate (5 minutes): 2,880W
Communication & System Integration
CAN & RS485 Communication
The Fox ESS EQM5000 supports CAN and RS485 communication, enabling communication between compatible battery modules and the wider energy storage system.
High-Voltage Modular System
The EQ range is designed as a scalable battery storage platform, making it suitable for installations where additional energy storage capacity may be required in the future.
Battery Compatibility When Expanding an Existing System
Adding Modules to an Existing EQ Battery Stack
If you are adding new battery modules to a pre-existing Fox ESS EQ battery stack, it is important to ensure that the new modules are compatible with the original battery modules.
Before purchasing or installing additional modules, contact your technical support representative through the relevant portal and provide a photograph of the existing battery stack to help confirm compatibility.
Heated & Non-Heated Battery Compatibility
Mixed Battery Configurations
Heated and non-heated battery versions can be used together within the same compatible EQ battery system.
For example:
A non-heated master can be connected to heated slave modules.
A heated master can be connected to non-heated slave modules.
However, if any battery module within the system does not support heating, the heating function will be disabled for the entire battery system.
⚠️ Warranty Registration Information
Activate Your 10-Year Product Warranty
The Fox ESS installation must be registered online to activate the 10-year product warranty.
Please refer to the applicable Fox ESS warranty documentation and registration requirements for full terms, conditions and eligibility.
Technical Specifications
Product Details
Manufacturer: Fox ESS
Product Range: EQ High Voltage Battery
Product Type: Master Battery Module
Supplier Part Number: EQ5000-M
Part Number: FE-HV-EQM-5000
Battery Chemistry: Lithium-Ion
Weight: 50.6kg
Length: 0.66m
Electrical Specifications
Nominal Energy: 2,880Wh
Depth of Discharge: 90%
Voltage: 52V
Continuous Discharge Rate: 1,440W
Maximum Discharge Rate (5 Minutes): 2,880W
Surge Discharge Rate (15 Seconds): 3,000W
Maximum Charge Rate (5 Minutes): 2,880W
Why Choose the Fox ESS EQM5000 Battery Master?
Modular and scalable energy storage design
Expandable system capacity up to 29.52kWh
Requires a minimum of 2 battery modules
Supports up to 6 modules per stack
90% depth of discharge
CAN and RS485 communication
Plug-and-play modular installation
Compatible heated and non-heated module configurations
Designed for compatible Fox ESS high-voltage battery systems
10-year product warranty available following eligible online registration
Fox ESS Cube EQ5000 4.92kWh HV Battery (Slave)
£1,130.00 + VAT
Fox EQ5000, 4.92kWh HV Battery (Slave)
#2: FE-HV-EQS-5000 Storage Systems - Li-ion Battery Pack
Fox EQ5000 Datasheet
Fox Product Compatibility
Fox EQ5000 Warranty
🔋 Fox ESS EQS5000 High Voltage Battery Slave – 4.92kWh Modular Storage System
The Fox ESS EQS5000 High Voltage Battery Slave is a modular lithium-ion battery designed for use as part of the Fox ESS EQ high-voltage battery storage system. The scalable design allows compatible battery modules to be added to increase total energy storage capacity as requirements grow.
The EQS5000 works alongside a compatible Fox ESS EQ master battery module and forms part of a flexible battery stack with a maximum system capacity of up to 29.52kWh.
Important: The EQS5000 is a slave battery module and cannot operate independently. A compatible Fox ESS EQ master module is required.
Modular & Scalable Battery Storage
Expandable Up to 29.52kWh
The Fox ESS EQ battery system uses a modular design that allows compatible battery modules to be connected together to increase total energy storage capacity.
A compatible battery stack requires:
Minimum configuration: 2 modules
1 × Master battery
1 × Slave battery
Maximum configuration: 6 modules
1 × Master battery
Up to 5 × Slave batteries
Maximum system capacity: Up to 29.52kWh
This flexible configuration allows the battery storage system to be expanded as energy requirements increase.
Easy Plug-and-Play Installation
The modular design supports straightforward installation and system expansion, helping installers save time when assembling compatible Fox ESS EQ battery stacks.
⚡ Battery Performance & Energy Storage
90% Depth of Discharge
The Fox ESS EQS5000 supports a 90% depth of discharge (DoD), allowing a significant proportion of stored energy to be utilised within a compatible battery system.
Charging & Discharging Performance
The battery module is designed to support reliable energy storage and delivery when installed as part of a compatible Fox ESS EQ system.
Performance specifications include:
Continuous discharge rate: 1,440W
Maximum discharge rate (5 minutes): 2,880W
Surge discharge rate (15 seconds): 3,000W
Maximum charge rate (5 minutes): 2,880W
Communication & System Integration
CAN & RS485 Communication
The EQS5000 supports CAN and RS485 communication, allowing compatible battery modules to communicate within the wider energy storage system.
Designed for High-Voltage Battery Systems
The EQ battery range is designed as a scalable energy storage platform, providing flexibility for installations that may require additional battery capacity in the future.
Adding Batteries to an Existing EQ Stack
Check Module Compatibility Before Expansion
If you are adding an EQS5000 battery module to an existing Fox ESS EQ battery stack, it is important to confirm that the new battery is compatible with the existing modules.
Before installation, contact your technical support representative through the relevant portal and provide a photograph of the existing battery stack to help determine compatibility.
Heated & Non-Heated Battery Compatibility
Mixed Battery Configurations
Heated and non-heated Fox ESS EQ battery versions can be used together within the same compatible battery system.
For example:
A non-heated master module can be connected to heated slave modules.
A heated master module can be connected to non-heated slave modules.
However, if any battery module within the system does not support heating, the heating function will be disabled for the entire battery system.
⚠️ Warranty Registration Information
Activate Your 10-Year Product Warranty
The Fox ESS installation must be registered online to activate the 10-year product warranty.
Please refer to the applicable Fox ESS warranty documentation and registration requirements for full warranty terms, conditions and eligibility.
Technical Specifications
Product Details
Manufacturer: Fox ESS
Product Range: EQ High Voltage Battery
Product Type: Slave Battery Module
Part Number: FE-HV-EQS-5000
Supplier Part Number: EQ5000-S
Battery Chemistry: Lithium-Ion
Weight: 46.6kg
Length: 0.66m
Electrical Specifications
Nominal Energy: 2,880Wh
Depth of Discharge: 90%
Voltage: 52V
Continuous Discharge Rate: 1,440W
Maximum Discharge Rate (5 Minutes): 2,880W
Surge Discharge Rate (15 Seconds): 3,000W
Maximum Charge Rate (5 Minutes): 2,880W
Why Choose the Fox ESS EQS5000 Battery Slave?
Modular 4.92kWh-class battery storage system
Designed for use with a compatible Fox ESS EQ master module
Expandable battery stack up to 29.52kWh
Supports up to 6 modules per battery stack
90% depth of discharge
CAN and RS485 communication
Plug-and-play modular installation
Supports compatible heated and non-heated module configurations
Suitable for expanding compatible Fox ESS EQ energy storage systems
10-year product warranty available following eligible online registration