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BigBattery

BigBattery APEX-10K Off-Grid Inverter | 10kW 120/240V Hybrid

SKU INV035
$1,680.00
$1,680.00
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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.

APEX 10K Off-Grid Inverter

The APEX 10K Off-Grid Inverter is a powerful hybrid inverter designed for off-grid and backup power applications. With 10,000W rated output power, split-phase 120/240V output, and pure sine-wave performance, it delivers clean and stable energy for homes, cabins, homesteads, remote residences, and off-grid properties. Built to work with modern 48V battery systems, this inverter supports solar and grid or generator input setups to help provide dependable all-day power.

Product Highlights

  • High Capacity: 10,000W rated output power for high-capacity off-grid and residential power systems.

  • Heavy Load Handling: 20,000VA max output power for handling demanding loads.

  • Versatile Output: Split-phase 120/240V output for standard and heavy-duty appliances.

  • Stable Electricity: Pure sine-wave output for clean, stable electricity.

  • System Compatibility: 48V battery system compatibility for off-grid and hybrid installations.

  • Flexible Inputs: Solar + grid or generator input support for flexible power sources.

  • Circuit Protection: 63A bypass overload current for large appliances and critical circuits.

  • Efficient Solar: 200A max solar charging current for strong solar charging performance.

  • Scalable Design: Up to 6 units in parallel for larger system configurations.

  • Rapid Transfer: 10ms typical switching time for fast backup power transfer.

  • Reliable Warranty: 5-year limited warranty with lifetime USA-based tech support.

Key Features

  • High-Capacity Off-Grid Power: Delivers 10,000W rated output power with clean pure sine-wave performance, making it a strong option for homes and off-grid properties.

  • Whole-Home Split-Phase Output: Provides 120/240V single-phase/split-phase output to power everyday household loads and larger appliances with confidence.

  • Solar-Ready Performance: Supports solar input with 1 + 1 MPPTs and up to 5,000W + 5,500W max input power to maximize energy production.

  • Flexible AC Input Setup: Includes one AC input that supports either grid or generator input as a backup charging option.

  • Strong Charging Capability: Supports up to 200A max solar charging current and 200A max hybrid charge current for efficient system charging.

  • Fast Backup Power Transfer: Features a 10ms typical switching time to provide quick transition support during backup power use.

  • Installer-Friendly Design: Built with bottom-entry wiring to help simplify installation and keep the system setup clean and organized.

  • Built-In Protection Systems: Includes comprehensive protection for PV input, AC input, battery, short-circuit, over-temperature, and overload.

  • Parallel Expansion Capability: Supports up to 6 parallel units; 3 or more units in parallel can form a three-phase output.

  • Communication & Monitoring Support: Includes RS485, CAN, USB, and dry contact communication, with optional Wi-Fi/GPRS module support.

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    Total price$9,989.97