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EG4

BigBattery ETHOS + EG4 12000XP V2 | 20.4kWh Off-Grid Solar

SKU K0183
$4,975.00
$4,975.00
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Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Northgrid Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

  • If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
  • If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@northgridsupply.com and we’ll look into it immediately.

6. Restocking Fees

In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.

BigBattery ETHOS Battery & 12000XP V2 Inverter | 10.24– 92.16kWh | Off- Grid System

The ETHOS + EG4 12000XP off-grid system is a powerful and expandable energy solution designed for both off-grid and hybrid setups. It integrates the ETHOS 48V lithium battery system with the EG4 12000XP hybrid inverter to provide reliable and efficient power for homes, cabins, and independent energy systems. This system delivers strong performance with up to 12kW split-phase output and high solar input capacity, enabling it to efficiently manage energy from solar panels, batteries, and the grid. It is designed to maintain consistent power delivery even in demanding environments. With its modular battery architecture, the system can be expanded beyond its base 20.4kWh capacity, supporting long-term energy growth.

Product Logistics & Support

  • Ships From: Texas, USA.

  • Battery Warranty: 12 Years.

  • Inverter Warranty: 10 Years.

  • Support: Lifetime USA-Based Tech Support.

Key Features

  • Strong Output: 12,000W split-phase output for residential and off-grid use.

  • Solar Optimized: Up to 24,000W solar (PV) input with dual MPPT.

  • Robust Storage: 20.4kWh ETHOS LiFePO4 battery system.

  • Scalable Architecture: Expandable battery capacity up to 80+ kWh.

  • Safe Chemistry: LiFePO4 battery chemistry for long lifespan and safety.

  • Long-Term Reliability: 6,000+ cycle life for extended use.

  • Intelligent Integration: Closed-loop communication between battery and inverter.

  • Advanced Safety: Comprehensive Battery Management System (BMS) protection.

  • Seamless Transitions: UPS backup switching (15–30ms) for uninterrupted power.

  • Energy Control: Smart management with load control and peak shaving.

  • Total Oversight: Remote monitoring and real-time system control.

  • User Friendly: Maintenance-free operation.

Performance and Efficiency

  • High Efficiency: The system is designed for high-efficiency power conversion and stable performance across different energy demands.

  • Thermal Stability: LiFePO4 technology provides improved thermal stability and consistent output.

  • Maximized Harvest: The hybrid inverter maximizes solar energy usage and overall system efficiency.

Document Links

Battery Downloads:

Inverter Downloads

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    Frequently Bought Together

    Total price$13,284.97