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BigBattery| 36kW 92.1kWh ETHOS Energy Storage System (ESS)
BigBattery| 36kW 92.1kWh ETHOS Energy Storage System (ESS)
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BigBattery’s 48V ETHOS systems are here, and this 61kWh 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 EG4 hybrid 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.
Kit Includes:
Designed For 48V Applications
Tech Specs
Single Module Tech Specs
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 (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: | UL9540a, UL1973, & UN38.3 |
Inverter Downloads
Spec Sheet: | Spec Sheet |
User Manual: | User Manual |
Rapid Shut Down Wiring Guide: | Rapid Shut Down Wiring Guide |
UL1741 Certificate: | UL1741 Certificate |









Introducing the 48V ETHOS
The next generation of residential ESS is here! The 48V LiFePO4 ETHOS is a UL-certified, CEC-listed solution designed to provide reliable power storage for every home in America. Boasting a stackable, modular design, with all cables and components included, the ETHOS is easily installed to your wall & affords the ability to expand upon your system later on. We pair the ETHOS with a cutting-edge, UL1741-certified LUXPower inverter capable of supporting 18kW PV arrays, but the ETHOS is compatible with dozens of 48V inverters in case you already have one setup at home. Be sure to check in with your local AHJ to confirm your desired system is compliant with all state and regional regulations.
With preconfigured systems for indoor & outdoor installations, you can shop confidently knowing that BigBattery has a power system to support your energy needs. Plus, for solar installers, flexible system configurations & special installer financing options make the ETHOS the ideal battery solution for your installs. Check out our all-new 48V ETHOS Systems below!
BigBattery ETHOS - The Future of UL-Certified Energy Storage Systems
ETHOS Expansion Kit | Integrate Seamless Power & Modular Versatility
BigBattery's 48V ETHOS - UL-Certified Lithium Energy Storage System
How to Size a Home Solar Power System
UL-Certified 48V ETHOS - Product Unboxing
FAQ
How do I connect this battery into my existing system?
These batteries use a standard
amphenol ESS connector. Each
module can be connected using the included cables. You
may also purchase additional
cables from BigBattery.
How many times can I putthis battery in parallel/series?
These batteries are not series
capable but can be connected
in parallel up to 16 times. Make
sure that the total amount of
these batteries in your configuration never exceeds sixteen total batteries. When connecting
batteries in parallel, ensure all
batteries are within 0.3 volts of
one another.
How long will my battery last,and what do I do at the end ofits life?
Lithium iron phosphate (LiFePO4) batteries can be cycled
from 3500 - 5000 times (80%
DoD, 0.5C). If you cycle the battery daily, you can get over 10
years of use from your battery.
When your battery is at the end
of its lifespan, contact us & we’ll
recycle it for you, free of charge!