Big Battery | 24kW 46kWh ETHOS Energy Storage System (ESS)
Overview
REVOLUTIONIZING RESIDENTIAL ESS! BigBattery’s 48V ETHOS system has arrived, offering a robust 46kWh configuration for grid-tied power, perfect for larger family homes or expansive multi-level properties. Built for safety, reliability, and equipped with advanced features, ETHOS sets a new standard in home energy storage.
The ETHOS system is designed with a modular, stackable setup for effortless expandability and easy installation on walls in garages, sheds, or exteriors, with all mounting hardware included. Its IP65-rated casing, internal fire suppression, and advanced BMS with auto-balancing ensure safety and longevity. The control box features an interactive LED display, plus CANBus and RS485 communication protocols for real-time power status monitoring.
To enhance performance, we pair ETHOS with two advanced 12,000W Lux inverters, each with an LCD touchscreen, 3 MPPT inputs, UPS modules for smooth on/off-grid transitions, and the capacity to manage PV arrays up to 36,000W. With smart load control, AC coupling, and peak shaving functions, these inverters deliver energy savings and ensure a stable power supply, even in challenging grid conditions.
Whether you’re preparing for emergency power or equipping your home with a high-powered solar system, ETHOS provides reliable, efficient energy day in and day out, enabling utility savings and potential benefits from net metering and tax incentives. Take control of your home’s energy with the 48V ETHOS system today!
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!
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! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
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!
Unlock substantial savings with the government's Solar Tax Credit, which offers a robust 30% deduction on the installation costs of solar systems. This attractive incentive is your ticket to leveraging solar energy's eco-friendly potential while enjoying the financial benefits.
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.
Contact us now to learn more!