FOX ESS EQ4800-L9 (41,93KWh) (37.73 kWh) Battery Commercial Battery High voltage 10 Years Product Warranty

The Fox ESS EQ4800-L9 is a high-voltage, modular battery storage system providing 41.93 kWh nominal (37.73 kWh usable) based on stable LiFePO₄ cell chemistry. The system operates in a voltage window of 365.4–463.7 V (nominal 403.2 V), achieves a round-trip efficiency greater than 95%, and allows a 90% DoD, making it ideal for maximizing self-consumption and providing dependable backup and grid-support functions. Built for indoor and outdoor installation (IP65), the unit is modular and scalable (up to 9 modules), features CAN communication and local status display, and complies with industry safety and transport standards.

• High system capacity – 41.93 kWh nominal (37.73 kWh usable) for substantial self-consumption and backup capability.
• Safe and durable chemistry – LiFePO₄ cells provide excellent thermal and chemical stability and long lifecycle.
• Excellent efficiency – >95% round-trip efficiency reduces operational losses and improves system economics.
• High usable DoD – 90% depth of discharge increases effective energy available per cycle.
• Modular & scalable design – Plug-and-play stacking up to 9 units allows flexible sizing for residential and commercial projects.
• Robust installation & compliance – IP65 enclosure for outdoor/indoor use and certifications for safety, EMC and transport.

• Nominal energy: 41.93 kWh
• Usable energy (90% DoD): 37.73 kWh
• Battery / cell chemistry: LiFePO₄
• Nominal voltage / operating range: 403.2 V (365.4 – 463.7 V)
• Round-trip efficiency: >95%
• Depth of discharge (DoD): 90%
• Cycle life: ≥ 6,000 cycles (manufacturer specification)
• Dimensions (W × H × D): 570 × 1,352 × 380 mm
• Weight: 356.5 kg
• Protection / certifications: IP65; applicable IEC/EN and transport standards (e.g., IEC 62619, EN IEC 61000 series, UN38.3)
• Communication / monitoring: CAN interface; local LED/status display
• Warranty: Manufacturer warranty terms as specified in the official datasheet

The Fox ESS EQ4800-L9 combines large usable capacity, LiFePO₄ safety, very high efficiency and modular scalability — an excellent choice for larger residential and commercial energy storage projects. Purchase securely via certified distributors with buyer protection and request a tailored quote now to confirm availability and delivery.

FOX ESS is a leading manufacturer of photovoltaic inverters and energy storage systems. Their products deliver high efficiency, long lifespan, and reliable performance across residential and commercial projects. With sustainable production and strong B2B conditions, FOX ESS is the ideal choice for professional solar installers.