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The BigBattery ETHOS 2x Expansion Kit shown with parallel and communication cable

BigBattery ETHOS 2x Expansion Kit

Brand :

$2,790.00
(You save $980.00 )
Calculating Price Per Kilowatt-hours
SKU:
BNDL-B0011
Spec Sheet:
Manual:
Kit Type:
Energy Storage
Kilowatt-hour(s):
10.24kWh

Scale Your Storage. Power More Possibilities.

The BigBattery ETHOS 2x Expansion Kit is designed specifically for existing ETHOS owners who need more energy storage without replacing their current system. This expansion package allows you to increase your battery capacity by an additional 10.24kWh while maintaining the same reliable, scalable platform you've already invested in. Complete with the required communication cable, power cable, and rack base, this expansion kit makes it easy to grow your energy storage system as your power needs evolve. Whether you're adding capacity for longer backup times, increasing solar self-consumption, or preparing for future energy demands, the ETHOS Expansion Kit provides a simple path to more stored energy and greater energy independence.

Ethos product advertisement highlighting efficiency and reliability features.

Key Benefits:

    • Built for Growing Energy Needs: Perfect for homeowners and businesses whose energy requirements have increased due to additional appliances, EV charging, expanded living spaces, or longer backup power expectations.

    • Reliable Long-Term Performance: Built with Tier 1 LiFePO4 battery technology, durable construction, and advanced safety features to provide dependable energy storage for years to come.

    • Complete Expansion Solution: Includes two ETHOS battery modules, a parallel communication cable, a parallel power cable, and an ETHOS rack base to simplify installation and system expansion.

    • Scalable Up to 80kWh: Continue adding capacity as your energy requirements increase. The ETHOS platform is engineered to support long-term growth and larger residential or off-grid applications.

Use Cases:

Ideal for existing BigBattery ETHOS owners who need additional battery capacity for whole-home backup, increased solar energy storage, growing household energy consumption, EV charging, off-grid expansion, or commercial energy applications.

Tech Specs:

    • Total Additional Energy Storage: 15.36kWh

    • Enclosure Rating: IP65 Weather-Resistant

    • Nominal Voltage: 48V

    • Battery Chemistry: LiFePO4 (Lithium Iron Phosphate)

Please Note: Lifetime Customer Support is based in Texas and available via phone and email. We strongly recommend using a certified solar installer and/or master electrician for professional installation. Please note that additional components may be required for your installation.

Have questions or need assistance? Our support team is here to help! Give us a call at 903-441-2090.

Product Image Product Information
EG4 18KPV Hybrid Inverter | All-In-One Solar Inverter | 18000W PV Input | 12000W Output | 48V 120/240V Split Phase | EG4-18KPV-12LV

2x BigBattery | 48V ETHOS Stackable Battery Module
End Clamp for Mini Rail 30mm close up view

1x ETHOS Parallel Power Cable | 4.9ft | Red and Black
Front and rear view of BlueSun 460W Bifacial Solar Panel pallet quantity

1x ETHOS Parallel Communication Cable | 4.9ft

1x ETHOS Battery Rack Base

Relevant Videos

Transformable Solar Home Battery System That Will Fit Almost ANYWHERE! BigBattery Ethos 48V

This video provides an in-depth overview and installation walkthrough of the BigBattery ETHOS modular battery storage system, highlighting its slim design, scalability, and outdoor-ready construction. The presenter explains how the 48V, 5.12kWh stackable batteries can be expanded up to 16 modules on a single control unit, making the system ideal for homeowners who want to start small and increase their storage capacity over time. The video also covers mounting considerations, wiring configurations, communication settings, and integration with an EG4 FlexBOSS inverter, while sharing practical installation tips and areas where the product design could be improved. Overall, the review emphasizes the ETHOS system's space-saving footprint, flexible installation options, and ability to deliver scalable energy storage for both indoor and outdoor applications.

Is the BigBattery Ethos LFP Worth It? 1 Year Whole House Battery Experience

In this 1-year update, I dive into my experience with the BigBattery Ethos LiFePO4 whole house battery! This 30kWh battery has flawlessly powered my 1900sqft home for an entire year without a single issue. From seamless integration with the EG4 inverter to its straightforward setup, the Ethos has been a game-changer for my energy needs. This battery is amazing if you're considering solar energy storage or a reliable backup power solution, this review covers performance, reliability, and why the BigBattery Ethos is a top choice for whole-home energy.

Spec Sheet:
Manual:
Kit Type:
Energy Storage
Kilowatt-hour(s):
10.24kWh
10-Year Warranty

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