Big Battery | 24kW 46kWh ETHOS Energy Storage System (ESS)
24kW 46kWh ETHOS Energy Storage System (ESS)
Advanced Residential Energy Storage Starts Here — The 24kW 46kWh ETHOS Energy Storage System (ESS) by BigBattery delivers a premium residential energy solution, engineered for modern homes that demand high-capacity, grid-tied power. Designed for safety, performance, and long-term reliability, this system is ideal for large family households, multi-story residences, or any home with intensive energy needs.
Scalable, Stackable, and Smart
This residential ESS includes:
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Six ETHOS battery modules delivering a total of 46.08kWh of energy storage
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Two 12,000W Lux hybrid inverters for a combined 24kW of continuous power
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Support for solar PV arrays up to 36,000W
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Built-in UPS modules to ensure uninterrupted transitions between on-grid and off-grid power
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Smart load management, peak shaving, and AC coupling for optimal energy efficiency
Engineered for Home Energy Independence
The 24kW 46kWh ETHOS Energy Storage System (ESS) is built to exceed residential expectations:
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Modular and stackable design allows for simple expansion and future upgrades
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Wall-mountable installation with included hardware fits seamlessly in garages, sheds, or exterior walls
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IP65-rated enclosure offers water and dust resistance for durability
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Advanced BMS with auto cell balancing ensures safe, even charging and long battery life
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LED display with CANBus and RS485 enables real-time energy monitoring and remote diagnostics
Why Choose the ETHOS 24kW 46kWh System?
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Perfect for off-grid living, solar homes, or backup power in blackout-prone areas
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Reduces monthly utility bills by avoiding peak demand rates and storing solar power
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Eligible for net metering and solar tax incentives, maximizing your ROI
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Reliable performance and fast grid transitions keep your home running without interruption
Key Benefits:
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24kW continuous power — enough to run your entire household, including HVAC systems, kitchen appliances, and electronics
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46kWh of storage — store plenty of solar energy for overnight use or extended grid outages
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Expandable system — add more battery modules as your energy needs grow
Take control of your home’s energy future with the 24kW 46kWh ETHOS Energy Storage System (ESS) — the scalable, intelligent solution for sustainable, secure, and cost-saving power.
What's Included
9 × 48V ETHOS 5.12kWh Stackable Battery Module
2 × ETHOS Control Box
2 × ETHOS RACK BASE
2 × LUXPower 12kW Hybrid Inverter
2 × Ethos Parallel Comm Cable 4.9 ft (150cm)
4 × Ethos Parallel Power Cable 4.9 ft (1500mm)
1 × Parallel Busbar
Specs and Downloads
System Spec Sheet
Inverter Spec Sheet
Single Stack Tech Specs
| SKU: | K0755 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 10.24kWh |
| Ah Capacity: | 200Ah |
| 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 2P |
| 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: | 273 lb (123.8 kg) |
| Depth: | 6.7 in (170 mm) |
| Width: | 26.5 in (674 mm) |
| Height: | 43.3 in (1100 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 |
Inverter
Registration & WiFi Setup Guide
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
Get your 30% Tax Solar Credit!
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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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