Big Battery | 24kW | 61.4kWh | ETHOS Energy Storage System (ESS)
24kW | 61.4kWh | ETHOS Energy Storage System (ESS)
Power Your Home with Scalable, Smart, and Secure Energy Storage
Introducing the BigBattery ETHOS 48V 61.4kWh Energy Storage System (ESS) — the future of residential energy storage for large homes and estates. This advanced system combines massive capacity, smart control, and rugged reliability to deliver grid-tied or off-grid energy performance like never before.
Whether you're planning for energy independence, backup power during outages, or maximizing solar usage, this 24kW, 61.4kWh ETHOS ESS provides the clean, reliable, and scalable solution your home needs.
Built for Big Energy Demands
Designed to meet the high energy demands of multi-level homes and large properties, this ETHOS configuration includes:
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Total Storage: 61.4kWh of lithium iron phosphate (LiFePO₄) capacity
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Total Output: 24kW continuous power, driven by dual 12000W Lux inverters
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Expandable Design: Modular and stackable architecture for future energy growth
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Installation-Ready: Includes all mounting hardware for garages, sheds, or external walls
Rugged, Safe, and Smart
The ETHOS Energy Storage System is engineered for outdoor durability and safety:
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IP65-Rated Enclosure: Resists dust, water, and harsh environmental conditions
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Fire Suppression System: Integrated for added safety
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Advanced BMS: Smart Battery Management System with automatic cell balancing
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Real-Time Monitoring: LED display with CANBus and RS485 communication protocols
Premium Inverter Technology
Included with the system are two high-performance Lux inverters, designed for seamless power management:
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Each Inverter Rated at 12,000W
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3 MPPT Inputs Per Unit: Maximizes solar harvesting from multiple PV strings
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Integrated UPS Functionality: Auto-switching between on-grid and off-grid modes
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Touchscreen LCD Display: Easy monitoring and settings control
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AC Coupling, Load Management & Peak Shaving: Reduce utility costs and optimize energy usage
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Solar Capacity Support: Handles up to 36,000W of solar input
Benefits of the 24kW | 61.4kWh ETHOS ESS:
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Massive Capacity: Run large appliances, HVAC systems, and EV chargers with confidence
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Energy Independence: Ideal for solar installations and reducing grid reliance
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Utility Bill Savings: Maximize net metering, load shifting, and time-of-use savings
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Incentive-Ready: Compatible with solar tax credits and rebate programs
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Reliable Backup: Protect your home against blackouts and voltage fluctuations
Take Charge of Your Home’s Energy Future
The ETHOS 24kW | 61.4kWh Energy Storage System (ESS) is more than just a battery—it's a fully integrated energy solution. Backed by BigBattery's industry-leading engineering and safety standards, this system empowers homeowners to take full control of their energy usage, save money, and secure peace of mind.
What's Included
12 × 48V ETHOS 5.12kWh Stackable Battery Module
2 × ETHOS Control Box
2 × ETHOS RACK BASE
2 × LUXPower 12kW Hybrid Inverter
1 × Parallel Busbar
4 × Ethos Parallel Power Cable 4.9 ft (1500mm)
2 × Ethos Parallel Comm Cable 4.9 ft (150cm)
Specs and Downloads
| SKU: | K0961 |
| GTIN-12 (U.P.C.): | 850061252036 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 15.36kWh |
| Ah Capacity: | 300Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 57V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| BMS Cutoff Range: | 42 - 47V |
| Cell Configuration: | 16S 3P |
| Max Continuous Discharge Current: | 250A |
| Max Continuous Power: | 12800W |
| Max Discharge Peak Current: | 300A (Max 5 seconds) |
| Max Charge Current: | 200A |
| Charge Temperature Range: | 32°F - 113°F (0°C - 45°C) |
| Discharge Temperature Range: | -4°F - 140°F (-20°C - 60°C) |
| Optimal Discharge Temperature Range: | 59°F - 95°F (15°C - 35°C) |
| Storage Temperature Range (SoC >50%): | -4°F - 113°F (-20°C - 45°C) (Max 6 months) |
| Weight: | 387 lb (175.5 kg) |
| Depth: | 6.7 in (170 mm) |
| Width: | 26.5 in (674 mm) |
| Height: | 59.8 in (1520 mm) |
| Max Connections: | Up to (16) parallel connections per control box |
| Protection Rating: | IP65 / NEMA 4X |
| Communications: | CANBus / RS485 |
| Certifications: | UL9540, UL9540A, UL1973, & UN38.3 |
User Manual
UL9540 Certification
UL1973 Certification
Safety Data Sheet
Inverter Downloads
User Manual
Rapid ShutDown Certificate
UL1741 Certificate
IEEE1547 Certificate
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
Being an authorized retailer means we carry the same warranty as the manufacturer, protecting your purchase!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! By default, all products on Solar Guys Pro are 100% brand-new and in perfect condition.
If an item is used or refurbished, it will clearly indicate so in the title of the product as well as the discription.
For example, a used Battery will say:
XYZ Battery | 48V 100AH (REFURBISHED)
If you'd like to confirm, you can always send us a email at info@solarguyspro.com
Orders over $500 include a FREE (Normally $149.99) 80-Page DIY Solar eBook — added automatically at checkout.
Frequently Asked Questions
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At Solar Guys Pro, our commitment is to you. Please be reminded that our expertise does not extend to tax advice. Nonetheless, our dedicated staff is eager to guide you through the process and ensure you capitalize on this exceptional offer.
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