•

BigBattery

48V NEXUS | 15kWh 300Ah LiFePO4 Lithium Battery

SKU F-NXUS-48150-G1
$2,980.00
$2,980.00
🔥 — sold in the last —
— people are looking at this right now

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.

48V 15kWH NEXUS LiFePO4 Battery

The 48V 15kWh NEXUS LiFePO4 Battery is a high-capacity energy storage solution designed for off-grid homes, cabins, commercial backup power, and home emergency power systems. With 15kWh usable energy, 300Ah capacity, and advanced LiFePO4 battery chemistry, it delivers reliable, long-lasting power for scalable energy storage applications. Its compact, floor-standing design makes installation flexible in garages, utility rooms, cabins, and sheds without the need for complex wall mounting.

Product Highlights

  • High-Capacity Storage: 15kWh usable energy for high-capacity off-grid and backup power storage.

  • Dependable Amperage: 300Ah capacity for dependable 48V energy systems.

  • Stable Chemistry: 51.2V nominal voltage with LiFePO4 battery chemistry.

  • Long Life: 6,000+ cycle life for long-term daily use.

  • Steady Power: 140A max continuous discharge current for reliable power delivery.

  • Surge Support: 270A peak discharge current for high-demand load support.

  • All-Weather Performance: Self-heating function for dependable cold-weather performance.

  • Enhanced Safety: Integrated aerosol fire suppression for added protection.

  • Massive Scalability: Expandable up to 225kWh with up to 15 units in parallel.

  • Easy Integration: RS485, RJ45, and CAN communication ports for system integration.

  • USA Support: 12-year warranty with lifetime USA-based tech support.

Key Features

  • High-Capacity Energy Storage: Provides 15kWh of usable LiFePO4 energy with 300Ah capacity, making it ideal for off-grid homes, cabins, and commercial backup.

  • Reliable Off-Grid Performance: Designed for installations where consistent power and long-term reliability are needed for residential or commercial energy storage.

  • Advanced Battery Protection: Built with an integrated Battery Management System (BMS) that provides multiple layers of protection against voltage, current, and temperature risks.

  • Strong Discharge Capability: Supports 140A max continuous discharge and up to 270A peak discharge to handle demanding electrical loads.

  • Cold-Weather Ready: Includes a self-heating function and smart thermal management, allowing charging from 32°F and discharging down to -4°F.

  • Built-In Safety System: Features integrated aerosol fire suppression for added safety in energy storage applications.

  • Modular Expansion: Supports up to 15 units in parallel, allowing the system to scale up to 225kWh total capacity per inverter.

  • Compact Floor-Standing Design: Built with a sleek, portable form that allows flexible placement without complex wall mounting.

  • Inverter Communication Support: Includes RS485, RJ45, and CAN communication ports for integration with compatible inverter systems.

  • Legacy Product Compatibility: Compatible and parallel-able with existing KONG and GRIZ products purchased between 2019–2024.

  • Maintenance-Free Operation: Designed for long-term use with no routine servicing required.

Resources

Customers also bought

    Frequently Asked Questions

    • FREE SHIPPING IN USA

      Free shipping with every order

    • SATISFACTION GUARANTEED 

      If your order arrives defective or fails to

      function properly, you will receive a full 100% refund!

    • PREMIUM CUSTOMER SUPPORT

      Connect with us through live chat, email, or

      phone, and we will address any questions you may have!

    • SECURE ENCRYPTED PAYMENTS

      We utilize advanced encryption to

      ensure there is never an issue with your privacy.

    Frequently Bought Together

    Total price$12,109.96