Fox H1 3.7kW Hybrid Inverter with Fox ESS EP12 11.52kWh 384V Battery

Fox H1 3.7kW Hybrid Inverter + EP12 11.52kWh HV Battery Bundle

#2: FE-3.7-EP12-WG

FOX EP12 Data Sheet

 FOX EP12 User Manual

 FOX ESS EP12 Installation Guide

 FOX Warranty

 Fox H1 3.7kW Datasheet

 Fox H1 3.7kW Manual

 Fox H1 3.7kW Installer Guide

 Fox H1 3.7kW G100 Certification

 Fox Battery Sizing Guide

Fox H1 3.7kW Hybrid Inverter + EP12 11.52kWh HV Battery Bundle

Part No: FE-3.7-EP12-WG

The Fox H1 3.7kW Hybrid Inverter + EP12 11.52kWh High-Voltage Battery Bundle delivers a complete, high-performance solar and storage solution for residential properties. Combining intelligent energy management with scalable lithium storage, this system is designed to maximise solar self-consumption, reduce grid reliance, and provide backup capability.

This bundle pairs the advanced Fox H1 3.7kW Hybrid Inverter Gen 2 with the high-capacity Fox ESS EP12 11.52kWh 384V Battery, creating a fully integrated high-voltage storage system.

What’s Included in This Bundle

• 1 × Fox ESS EP12 11.52kWh 384V High-Voltage LFP Battery (with integrated heating element)

• 1 × Fox H1 3.7kW Hybrid Inverter with EPS – Single Phase Gen 2

This configuration is ideal for homeowners looking for a powerful yet compact hybrid storage system.

Fox ESS EP12 11.52kWh High-Voltage Battery

The EP12 is a high-voltage lithium iron phosphate (LFP) battery designed for enhanced safety, long cycle life, and strong discharge capability. With a total capacity of 11.52kWh, it provides substantial storage for medium to larger homes with higher evening consumption.

Key battery features include:

• 11.52kWh total capacity

• 384V high-voltage architecture

• Integrated heating element for improved low-temperature performance

• LFP chemistry for enhanced safety and thermal stability

• Long lifecycle performance

• Compatible with Fox high-voltage hybrid inverters

The integrated heating element ensures stable operation in colder UK climates, supporting year-round performance.

Fox H1 3.7kW Hybrid Inverter – Gen 2

The Fox H1 3.7kW Gen 2 is a single-phase hybrid inverter engineered for seamless integration between solar PV, battery storage, and grid supply.

Inverter highlights include:

• 3.7kW AC output (single phase)

• Integrated battery management compatibility

• EPS (Emergency Power Supply) functionality

• High efficiency conversion

• Dual MPPT for flexible string design

• Remote monitoring via Fox Cloud platform

The EPS functionality allows essential circuits to remain powered during grid outages when correctly configured.

Intelligent Energy Management

Together, this bundle enables:

• Increased solar self-consumption

• Reduced electricity bills through smart charge/discharge control

• Compatibility with time-of-use tariffs

• Optional backup power capability (EPS configuration required)

The high-voltage architecture improves overall system efficiency while reducing current losses compared to low-voltage systems.

Ideal Applications

• Residential solar + storage installations

• Homes with medium to high evening electricity usage

• Properties using flexible or time-of-use energy tariffs

• Installations requiring future-ready hybrid capability

Key Technical Overview

Inverter

• Output Power: 3.7kW (Single Phase)

• Type: Hybrid with EPS

• MPPT: Dual

Battery

• Capacity: 11.52kWh

• Nominal Voltage: 384V

• Chemistry: Lithium Iron Phosphate (LFP)

• Integrated Heating Element: Yes

Professional Installation Required

This system must be installed by a qualified electrician or certified solar installer. All installations must comply with current UK wiring regulations and local electrical standards.