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Fox ESS H1 3.7kW G2 Hybrid Inverter with ECS4100 Battery stack of 2 (8.06kWh)
#2: FE-HV-ECM-4100 Storage Systems - Li-ion Battery Pack
Fox H1 3.7kW Datasheet
Fox H1 3.7kW Manual
Fox H1 3.7kW Installer Guide
Fox H1 3.7kW G100 Certification
Fox Warranty
Fox Battery Sizing Guide
Fox ECS 4.03kWh HV Battery + Fox H1 3.7kW Hybrid Inverter Complete Kit
This complete solar storage kit combines Fox ECS 4.03kWh High-Voltage Batteries (Master + Slave) with a Fox H1 3.7kW Hybrid Inverter G2, delivering a scalable, efficient, and plug-and-play energy solution. Designed for residential and small commercial solar systems, this kit maximises solar self-consumption and allows for future expansion.
⚠️ Warranty Reminder: Register your install with Fox online to activate the 12-year battery warranty. Otherwise, a standard 5-year warranty applies.
What’s Included
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1 x Fox ECS 4.03kWh HV Battery (Master) – FE-HV-ECM-4100
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1 x Fox ECS 4.03kWh HV Battery (Slave) – FE-HV-ECS-4100
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1 x Fox H1 3.7kW Hybrid Inverter G2 – FE-H1-3.7-G2
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Accessories included: CT clamps, WiFi stick
⚠️ Additional requirements:
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A second CT if connecting another generator source (e.g., PV or wind)
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Meter installation required if the inverter and main connection point are more than 30m apart
Fox ECS 4.03kWh HV Battery – Features
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Modular and scalable – up to 28.21kWh total storage
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90% depth of discharge – maximises usable energy
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Wide temperature tolerance – reliable performance in varied climates
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Plug-and-play installation – quick setup, expandable post-installation
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CAN/RS485 communication – supports system monitoring and integration
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High-voltage design – efficient energy transfer and reduced cabling
Specifications:
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Weight: 38.25 kg
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Battery Type: Lithium-Ion
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Nominal Energy: 4,050 Wh
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Voltage: 52 V
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Continuous Discharge Rate: 2,875 W
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Max Discharge Rate (5 min): 2,875 W
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Surge Discharge Rate (15 sec): 2,875 W
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Maximum Charge Rate (5 min): 2,875 W
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Minimum Modules Required: 2 (Master + Slave)
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Maximum Stack Size: 7 modules (1 Master + 6 Slaves)
Fox H1 3.7kW Hybrid Inverter – Features
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Easy installation – compact, lightweight, and simple to mount
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IP65 rated – suitable for outdoor installations
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Dual MPPT – ensures optimal solar production
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High round-trip efficiency – 97% for maximum energy utilisation
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Expandable system – supports up to 7 batteries in series, for a maximum storage capacity of 33.24kWh
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Remote monitoring – via smartphone or web portal
Specifications:
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Weight: 22 kg
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Rated Power: 3,680 W
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Min PPT Voltage: 80 V
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Max PPT Voltage: 550 V
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DC Startup Voltage: 75 V
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DC Shutdown Voltage: 600 V
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Max Input Voltage: 600 V
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Max DC Power (5 min): 5,500 W
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Max AC Power (5 min): 3,680 W
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Surge AC Power (1 sec): 4,400 W
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Max DC Current: 32 A
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Max DC Inputs: 2
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Connector Type: MC4
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Included Connectors: 4
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Euro Efficiency: 95.7%
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Transformer: None
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MPPT Quantity: 2
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Integrated DC Switch: Yes
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Warranty: 5 years
Why Choose This Complete Kit?
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Scalable energy storage – add additional ECS modules to meet future energy needs
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Efficient hybrid inverter – dual MPPT ensures maximum solar harvesting
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Plug-and-play system – quick installation and easy setup
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Remote monitoring – track system performance via web or smartphone
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IP65 rated components – durable for indoor or outdoor installation
✅ The Fox ECS 4.03kWh + Fox H1 3.7kW Hybrid Inverter Kit is a high-efficiency, scalable solar solution, combining modular energy storage, advanced hybrid inverter technology, and easy installation for residential and small commercial applications.
Remember to register your install with Fox online to activate the 12 year product warranty, otherwise it's 5 years as standard. Please click here for registration page.
Please check the warranty document for more information.
