Big Battery 48V EG4 POWERPRO - FEWPP-48143-G1
Introducing EG4’s game-changing 48V 14.34kWh PowerPro, the ultimate solution for residential and commercial ESS. This UL-certified, wall-mountable battery ensures reliable, efficient power delivery for any home or business, allowing you to see massive lifetime savings on your utility costs, and when paired with solar, you’re able to benefit from incentive programs and tax credits.
The PowerPro was designed with safety, longevity, and visibility in mind, with a lifespan of over 8000 cycles at 80% DoD. That’s 82.6MWh of lifetime production. This battery comes equipped with LiFePO4 cells, the safest chemistry on the market today, and an all-weather, IP65-rated design that ensures peace of mind through every season. Plus, the PowerPro’s intelligent BMS continuously monitors and records module and cell voltage, current, and temperature in real-time, in addition to a passive cell-balancing function, optimizing performance and ensuring long-lasting power, and an LCD touch screen display on the side of the unit allows you to stay up to the date on the status of your battery day in and day out. But that’s not all. . .
Not only does the PowerPro feature an automatic self-heating function and dual fire extinguishers for fail-safe protection in case of thermal runaway, but EG4 continues to innovate with an all-new emergency stop function. This optional ESS disconnect is capable of shutting down your entire power system at the press of a button, so should an emergency happen, you’ll always be prepared.
The PowerPro serves as the foundation for EG4’s PowerPro ESS Systems, but this battery can be paired with any hybrid or off-grid inverter you may already have installed. It’s time to revolutionize how you power your home or business. Upgrade today with EG4’s 48V PowerPro.
INCLUDED
(1) Mounting Bracket
(1) X Bracket
(6) Expansion Bolt
(2) Red & Black Battery to Inverter Power Cables (3.3 FT)
(1) Battery to Inverter Comm Cable (5 FT)
What our Experts Think
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Robust 48 V power solution — Designed to deliver stable and reliable 48 V output, ideal for solar storage, off‑grid systems, RVs, or backup power setups.
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Efficient energy handling — Engineered for efficient power conversion and management, helping maximize runtime and minimize energy waste.
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Durable & weather‑resistant construction — Built with rugged components and protection measures, suitable for indoor or sheltered outdoor installations.
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Designed for integration — Works well with other components in the ecosystem (batteries, inverters, panels), simplifying system design and compatibility.
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Low‑maintenance & long lifespan — With modern design and build quality, it offers a low‑maintenance power module expected to outlast typical legacy power systems.
Q&A
Q: What is the BigBattery 48V EG4 POWERPRO (FEWPP‑48143‑G1)?
A: A 48 V, 14.3 kWh LiFePO₄ battery module designed for home, solar, off-grid, or backup power systems, providing reliable, long-lasting energy storage.
Q: What makes this battery stand out?
A: IP65-rated weatherproof casing, integrated self-heating for cold climates, dual internal fire arrestors, emergency-stop function, and a touchscreen LCD for easy BMS monitoring.
Q: What kind of performance does it deliver?
A: Up to 10.2 kW continuous output, robust 48 V system compatibility, passive cell balancing, and long cycle life thanks to LiFePO₄ chemistry.
Q: What applications is it best suited for?
A: Residential solar systems, off-grid homes or cabins, emergency backup power, tiny homes, commercial power storage, and other setups needing durable, high-capacity 48 V battery systems.
Q: What’s included with the POWERPRO unit?
A: The battery module, mounting bracket and hardware, inverter-connection cables, and a communication cable — ready for installation.
Q: Does it include safety features?
A: Yes, it has an advanced BMS with over/under-voltage, over-current, thermal protection, emergency shutdown, and fire arrestors for maximum safety.
Q: Is installation straightforward?
A: Yes, it comes ready for plug-and-play installation with all necessary hardware and connection cables included.
Maintenance Tips
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Place the POWERPRO in a cool, dry, and ventilated area to maintain optimal charging efficiency and extend battery lifespan.
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Regularly inspect terminals, connectors, and wiring for corrosion, looseness, or wear to ensure safe and reliable 48V operation.
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Clean the exterior with a soft, dry cloth to remove dust and prevent heat buildup.
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Avoid exposure to direct sunlight, moisture, or extreme temperatures, which can reduce performance and longevity.
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Monitor charge levels and avoid deep discharges to maintain long-term capacity and efficiency.
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For storage or extended non-use, keep the battery at 50–60% charge and disconnect from all loads and chargers
