Fox ESS PowerQ AIO EQ4000 Battery Module
- Hybrid PV Input Up to 22.8kW per PowerQ
- LFP Battery, Up to 20kWh per PowerQ
- Scalable Up to 4 Units, Totally Up to 80kWh Backup Capacity
- Both Wi-Fi & 4G Communication Available
- LRA Up to 110A
- Multiple Energy Operation Modes
- Compatible with Generator with Fox Hub G2
See the specs >
August Sale:
- 5% Off with coupon code: AUG5
The EQ4000 is a high-voltage, modular lithium iron phosphate (LiFePO₄) battery module designed to expand storage capacity in Fox PowerQ AIO systems—a hybrid inverter and battery solution. It’s intended for zero-tool, plug-and-play installation, enhancing flexibility and scaling in clean energy storage deployments.
Each module provides 3.97 kWh of usable energy and allows stacking 2 to 5 modules for a total of up to 19.85 kWh per AIO unit.
Product Overview
Total energy | 3.97kWh |
Module Qty | 1 Battery modules |
Max. Continuous power | 11.4kW |
Max. PV input voltage | 600V |
Easy Scalable | Max to 5 Modules up to 19.85kWh |
Dimensions(W*H*D) | 18.9*14.2*9.2 inch (480*360*233 mm) |
Weight | Battery module: 81.35 lbs/36.9 kg |
Mounting | Ground mount |
Safety and EMC |
UL9540A, UL9540, UL1973, UL1741 SA, UL 1741 SB, UL1741 CRD, CSA C22.2 No.107.1-16, UL1998, UL1699B, HECO SRD-V2.0; IEEE1547-2018, IEEE1547a-2020, IEEE1547.1-2020, Rule21; FCC part15 CLASS B |
Warranty | 12.5 Years |
Key Features
- Hybird PV Input Up to 22.8kW per PowerQ
- LFP Battery, Up to 20kWh per PowerQ
- Scalable Up to 4 Units, Totally Up to 80kWh Backup Capacity
- Both Wi-Fi & 4G Communication Available
- LRA Up to 110A
- Multiple Energy Operation Modes
- Compatible with Generator with Fox Hub G2
Product Specifications
- Max. PV input voltage: 600V
- MPPT Voltage Range: 80 ~ 550V
- Max. PV input current per MPPT: 28/14/14
- MPPT & Strings: 3 (MPPT 1: 2 Strings; MPPT 2&3: 1 String)
- Max. Continuous AC Out current : 47.5A
- CEC efficiency (PV): 97%
- Enclosure rating: Type 4X
- Cooling Method: Natural convection
- Display: LED, App, Website
- Communication Protocol: WiFi, 4G, LAN
- Interface: CAN2.0, RS485, Meter, CT, ISO alarm, SUNSPEC
Shipping and Packaging
- The battery can only ship via freight truck
Download
Datasheet
FoxESS PowerQ-datasheet-US-Mainland-V1.0-2.27.pdf
FoxESS_AIO_H1_AC1_Datasheet_US_Mainland_-compressed.pdf
User Manual
Fox-ESS-PowerQ-User-Manual-ESSwith-hub-V1.0a.pdf
Certification
Fox_PowerQ_UL9540.pdf
Fox_PowerQ_UL1973.pdf
Fox_PowerQ_UL1741.pdf
Fox_CoFC_80112280_EN.pdf
HUB &WiFi
Fox Hub-G2 Datasheet
Fox Smart WiFi Datasheet
FoxESS Cloud User Manual
About FOX ESS
FOX ESS is a leading provider of advanced energy storage solutions that empower customers to optimize their energy usage, reduce their carbon footprint, and enhance their energy independence. Founded in 2016, 15% of FOX ESS staff are engineers with a core R&D center base in Shang Hai. FOX ESS has developed a wide range of energy storage products and services that cater to the needs of various industries, including residential-use, utilities, commercial, and industrial customers. FOX ESS is committed to delivering innovative, reliable, and cost-effective energy storage solutions that meet the evolving needs of the energy market. With a global team of experienced engineers and energy experts, the primary markets of FOX ESS include Germany, Italy, the UK, Brazil, Poland, and the US.

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