Big Battery 36kW 92.1kWh ETHOS Energy Storage System (ESS) - K0968
CERTIFIED COMMERCIAL ESS! BigBattery’s 48V ETHOS systems are here, and this 92kWh commercial configuration is the ideal solution for grid-tied power in your office building, warehouse, or job site, supported by comprehensive safety, reliability, and state-of-the-art features.
The ETHOS System was built to be a versatile commercial power solution, with a stackable, modular design for easy expandability, and all hardware included to wall-mount your ETHOS with an effortless installation. The ETHOS comes equipped with an IP65-rated casing, an internal fire suppression system, as well as an advanced BMS with auto cell-balancing to ensure long-lasting safety and reliability. Plus, its control box features an interactive LED display, along with CANBus and RS485 communication protocols, so you can always monitor the status and performance of your power.
But that’s not all. We pair this ETHOS system with 3 cutting-edge 12000W Lux inverters, which feature their own LCD touch screen displays, 3 MPPT inputs each, integrated UPS modules for seamless on and off-grid switching, and the ability to handle PV arrays of up to 54000W. Plus, through their smart load control, AC coupling abilities, and peak shaving functions, you can meet your power needs and protect your business against unstable grids or rolling blackouts, while seeing huge savings each month on your electric bill.
Whether you’re looking to ensure emergency backup power is always available, or you’re looking to outfit your office building with a powerful solar system, the ETHOS ensures reliable, efficient power delivery day in and day out, allowing you to save on utilities, or get rewarded for giving back to the grid through net metering programs and other tax incentives. Take control of your business’s power and shop the 48V ETHOS today!
Included
- 18 × 48V ETHOS 5.12kWh Stackable Battery Module
- 3 × ETHOS Control Box
- 3 × ETHOS RACK BASE
- 3 × LUXPower 12kW (18kPV) Hybrid Inverter
- 3 × Ethos Parallel Comm Cable 4.9 ft (1500mm)
- 6 × Ethos Parallel Power Cable 4.9 ft (1500mm)
What our Experts Think
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Large‑Scale Energy Storage: With 92.1 kWh capacity, this system stores a substantial amount of energy — more than enough for whole‑home backup, off‑grid living, or extended heavy‑load usage.
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Strong 36 kW Output: Capable of powering large loads — HVAC systems, appliances, backup systems, or small commercial operations — without strain.
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Modern LiFePO₄ Technology: Provides excellent cycle life, safety, thermal stability, and consistency, outperforming older battery chemistries in reliability and longevity.
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Comprehensive Battery Management System: Integrated BMS protects against overcharge, over‑discharge, thermal issues, and ensures balanced cell operation for long-term stability.
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Flexible & Versatile Use Cases: Suitable for solar‑plus‑storage systems, off‑grid setups, grid‑tie hybrid installations, or as emergency backup for residences or commercial buildings.
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Low Maintenance & Durable Build: Designed for robust, long-term operation with minimal upkeep — ideal for users who want a “set and forget” energy storage solution.
Q&A
Q: What is the Big Battery ETHOS ESS used for?
A: Designed for residential, commercial, and off-grid solar systems, delivering high-capacity, reliable energy storage.
Q: What is the power and capacity?
A: Provides 36kW continuous output with 92.1kWh energy capacity, supporting heavy loads and long-duration backup power.
Q: What battery chemistry does it use?
A: Uses LiFePO4 cells, ensuring long cycle life, high efficiency, and enhanced safety for demanding applications.
Q: Does it include a BMS?
A: Yes, features an advanced Battery Management System for overcharge, over-discharge, and thermal protection.
Q: Is it compatible with inverters and solar systems?
A: Yes, it integrates seamlessly with grid-tied or off-grid inverters and solar setups for flexible energy management.
Q: How long will the batteries last?
A: LiFePO4 chemistry provides thousands of cycles, offering years of reliable, low-maintenance operation.
Q: Why choose the ETHOS 36kW/92.1kWh ESS?
A: Users prefer it for high-capacity performance, scalable energy storage, robust reliability, and safety features for residential and commercial use.
Maintenance Tips
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Inspect connections regularly: Check AC/DC terminals, busbars, and wiring for tightness, corrosion, or dust buildup.
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Monitor system performance: Use the BMS or monitoring software to track voltage, temperature, and error codes.
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Maintain cooling system: Keep fans, vents, and heat sinks clean to prevent overheating.
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Firmware updates: Apply manufacturer-recommended updates to maintain efficiency, safety, and optimal performance.
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Check grounding: Ensure proper grounding to prevent electrical hazards and maintain stable operation.
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Environmental care: Install and operate in a cool, dry, ventilated area; avoid direct sunlight, moisture, or corrosive conditions.
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Avoid overloads: Do not exceed the rated 36kW output to protect the ESS and ensure long-term reliability.
