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EG4 & BigBattery Hybrid Power Kit | 12kW 120/240V Output 48VDC Inverter - 10.2kWh System Bundle | 1 x EG4 12000XP Inverter + 2 x Ethos Lithium Battery

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Top Authorized Dealer
Manufacturer Warranty Included
SKU K0183
Original price $5,665.00 - Original price $5,665.00
Original price
$5,665.00
$5,665.00 - $5,665.00
Current price $5,665.00
Availability:
in stock, ready to be shipped
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Refer to our Price Match Policy Rules.

Refunds & Returns Policy

We offer a 30 day return for this product from date of receipt. All returns must be pre-approved and issued an Return Merchandise Authorization (RMA) #. The return shipping fees are the responsibility of the customer. Returns are subject to a restocking fee. Returns are only allowed if the product was unused, original-condition items, or not installed.

Refer to our Refunds & Return Policy for more details.

Shipping & Delivery

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Delivery time

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EG4 & BigBattery Hybrid Power Kit | 12kW 120/240V Output 48VDC Inverter - 10.2kWh System Bundle | 1 x EG4 12000XP Inverter + 2 x Ethos Lithium Battery

Description

BigBattery ETHOS Battery & 12000XP Inverter 10.24–92.16kWh Off-Grid System

Power your off-grid lifestyle with unmatched reliability and scalability. The BigBattery ETHOS Battery paired with the EG4 12000XP Inverter delivers a robust energy solution designed for homes, cabins, and remote operations. Offering a flexible storage capacity from 10.24kWh up to 92.16kWh, this system adapts to your energy demands—whether you need backup power or a full off-grid setup.

  • Massive Capacity Range: Scale from 10.24kWh to 92.16kWh to match your usage.
  • High-Performance Inverter: The 12000XP ensures seamless conversion and stable power output.
  • Off-Grid Ready: Built for independence, reliability, and long-term energy security.
  • Durable & Efficient: Engineered for consistent performance and reduced maintenance.
  • Smart Investment: Lower reliance on the grid while maximizing energy savings.

Take control of your energy future with a system that grows with you—powerful, efficient, and built to last.

Key Features & Benefits

  • Scalability: The system is built to grow; you can parallel up to 16 inverters and 16+ batteries to meet expanding energy needs.

  • Smart Energy Management: Includes a programmable "Smart Load" port for automated power shedding and Wi-Fi monitoring via the EG4 app.
  • Safety & Reliability: Equipped with built-in fire arrestors, rapid shutdown (RSD) capabilities, and a 10-year warranty on the battery.

  • Plug-and-Play Design: The bundle is engineered for DIY-friendly installation with clearly labeled terminals and a sleek, space-saving wall-mount profile.
BigBattery’s 48V ETHOS 20.48kWh system delivers scalable, wall-mounted off-grid and backup power for tiny homes, cabins, and homesteads, pairing an IP65 LiFePO₄ battery stack with advanced safety features and a 12000W EG4 12000XP split-phase inverter for robust performance and utility savings.

What's Included

1 x EG4 12000XP 120/240V Output 48VDC Inverter

2 x BigBattery Ethos 10.2kWh (2 Module)

1 x BigBattery ETHOS Control Box


Product Specifications

BigBattery ETHOS Product Specifications

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: 200A
Max Continuous Power: 10240W
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
Communications: CANBus / RS485
Certifications: UL9540, UL9540a, UL1973, UN38.3, & CE


EG4 12000XP Product Specifications

EG4 12000XP Spec Sheet

EG4 12000XP Certificate of Compliance

EG4 12000XP WiFi Configuration Guide


Product Manual

EG4 12000XP User Manual

BigBattery ETHOS 10.2kWh (2 Modules)

BigBattery ETHOS 10.2kWh (2 Module) Product Specs

BigBatery ETHOS 10.2kWh User Manual


Product Warranty

EG4 Product Warranty

EG4 Electronics offers a 10-year Full Parts Replacement or Full Product Replacement Prorated Warranty from the date of battery (EG4 WallMount Indoor 100Ah*1) purchase.

Your warranty must be registered within the first year of purchase or provide proof of purchase from an EG4 authorized distributor to remain valid. If you choose not to register or cannot provide proof of purchase, your warranty may be invalidated.

This limited warranty is to the original purchaser of the product and is one time transferable only if the product remains installed in the original installation location. All parts exchanges, including BMS, are covered during the warranty period. If a full replacement warranty is needed, the warranty is prorated 1/10th per year after the first year at the current retail pricing. Replacement shipping charges may incur on a case-by-case basis. Outside of the continental US, replacement shipping charges may apply.

Product that is not purchased through an EG4 approved vendor is not covered under this warranty. A list of approved vendors can be found on our website. Reselling or removing the product from the original installation site will void the warranty.

Warranty Exclusions – EG4 Electronics has no obligation under this limited warranty for products subjected to the following conditions (including but not limited to):

  1. Damages incurred during installation/reinstallation or removal

  2. Poor workmanship performed by an individual, installer, or a firm

  3. Damages caused by mishandling the product or inappropriate environmental exposure

  4. Damages caused by improper maintenance or operating outside the specified operating conditions

  5. Tampering, altering, and/or disassembly of the product

  6. Using product in applications other than what the manufacturer intended

  7. Lightning, fire, flood, earthquake, terrorism, riots, or acts of God

  8. Any product with a serial number that has been altered, defaced, or removed

  9. Any unauthorized firmware updates/upgrades/patches

  10. Failure to update with the most recent firmware version, when known defects/issues are corrected

  11. Damages incurred from a voltage or current spikes due to open-loop lithium battery communications

EG4 product warranty is a limited warranty – EG4 limits its liability in the event of a product defect to repair or replacement in accordance with the terms of this limited warranty. EG4 is not responsible for any additional or indirect damages that may arise from the malfunctioning of the product. These damages could be incidental or consequential, including without limitation, any liability for the loss of revenue, profits, or time. EG4 shall not be liable for any direct or indirect loss of life, including but not limited to bodily injury, illness, or death arising from the misuse or mishandling of the product, whether caused by negligence or otherwise.

EG4 recommends operating its batteries under the conditions listed in our white paper “SoH, DoD and Round-trip Efficiency Explained” to maintain longer and more efficient battery life.

Product FAQs

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