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Datasheet
UL1973 Certification
UL9540 Certification
Build an advanced solar power solution with the Fox EQ4000 battery, a premium Fox ESS EQ4000 high-voltage battery engineered for use with the Fox AIO (All-in-One) solar power system. Designed with advanced LFP technology and scalable architecture, the Fox EQ4000 4kWh module delivers exceptional performance, safety, and long-term reliability.
Whether you're powering a home, upgrading an RV solar setup, building a cabin power system, or adding backup capacity to a marine vessel, the Fox EQ4000 solar battery provides dependable storage for every environment.
Product Overview
The Fox EQ4000 lithium battery is part of the high-performance Fox AIO (All-in-One) line, offering modular plug-and-play assembly & easy installation. Each module delivers 3.97kWh capacity and can scale up to 27.80kWh, making it ideal for both small and large solar installations. With 90% DOD, >95% efficiency, and wide temperature tolerance, the Fox EQ4000 high voltage battery ensures uninterrupted energy storage for all climates and conditions.
Designed for indoor or outdoor installation with the Fox AIO system, the Fox EQ4000 battery provides smart, efficient, and stable energy storage for homes, cabins, trailers, and off-grid systems.
Key Features
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High-capacity 4kWh Fox EQ4000 energy storage battery for Fox AIO systems
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Scalable design: expand up to 27.80 kWh with multiple modules
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Superior LFP technology for stability and long cycle life
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90% Depth of Discharge and >95% round-trip efficiency
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Wide operating temperature range for extreme environments
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CAN communication for seamless inverter integration
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IP65 protection for reliable indoor/outdoor installation
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Plug-and-play design for fast, easy installation
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UL1973, UL9540, UL9540A & UN38.3 certified for global safety standards