• APEX-10K Off-Grid Hybrid Inverter
  • APEX-10K Off-Grid Hybrid Inverter
  • APEX-10K Off-Grid Hybrid Inverter
  • APEX-10K Off-Grid Hybrid Inverter
  • APEX-10K Off-Grid Hybrid Inverter
  • APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter
BigBattery | SKU: INV035

BigBattery | APEX-10K Off-Grid Hybrid Inverter | 10kW 120/240V Split-Phase | 10.5kW PV | 48V | INV035

$1,550.00
$1,550.00
FREE SHIPPING i Free shipping to the contiguous United States on every order. The price you see is the price you pay — no extra shipping or freight fees added at checkout.
Authorized BigBattery Dealer
Manufacturer Warranty Included
  • ✓Authorized Online Dealer
  • ✓Free Shipping · No Sales Tax (excluding MI)
  • ✓Lowest Price Guarantee
  • ✓Ships in 1–2 business days · 4–7 day transit
  • ✓Questions? Call us at (734) 228-0441
Use code: SAVE5 (5% OFF)
APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter
APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter APEX-10K Off-Grid Hybrid Inverter
Questions before buying?
📞
Call us at (734) 228-0441
Mon – Fri 9AM – 5PM EST
✉️
support@offgridselection.com
Customer Service Contact Email

Product Description

The BigBattery APEX-10K is a high-capacity off-grid hybrid inverter delivering 10,000W of split-phase 120/240V pure sine-wave power for whole homes, ranches, shops and remote properties. Designed around 48V LiFePO4 battery banks, it provides clean, stable energy day and night.

Two MPPT inputs accept up to 10.5kW of solar, a single AC input connects to either the grid or a generator, and up to 200A of battery charging refills large banks quickly. An 80A pass-through keeps heavy appliances and critical circuits running, and units can be paralleled for even more power.

Key Features

  • 10kW continuous / 20kVA peak split-phase 120/240V output
  • Up to 10.5kW PV input across 2 MPPTs (550V DC max)
  • Up to 200A battery charging
  • 80A pass-through for heavy loads
  • Single AC input for grid OR generator (not simultaneous)
  • Parallel up to 6 units, including three-phase configurations
  • Installer-friendly bottom-entry wiring with integrated breakers

Compatibility

  • Closed-loop communication with BigBattery NEXUS, ETHOS and 48V HUSKY 2 INV batteries
  • EG4 WallMount 280Ah and 314Ah batteries (All-Weather and Indoor)
  • Off-grid, non-UL 9540 installations

Specifications

Rated Output Power 10,000W
Max Output Power 20,000VA
Motor Load Capacity 6 HP
Rated Output Voltage 120/240V AC split-phase (single-phase capable)
Output Waveform Pure sine wave
Frequency 50/60Hz
Transfer Time 10 ms (typical)
Battery 48V nominal (40–60V DC); lithium-ion, lead-acid or user-defined
Max Solar Charge Current 200A
Max Grid/Generator Charge Current 120A
Max PV Input Power 5,000W + 5,500W
Max PV Input Current 22A + 22A
MPPT Trackers 2 (1 + 1)
Max PV Open Circuit Voltage 550V DC per MPPT
MPPT Voltage Range 125 – 450V DC
AC Input Voltage Range 65 – 140V AC
AC Inputs 1 (grid or generator)
Bypass Overload Current 63A
MPPT Tracking Efficiency 92%
Max Efficiency 99.9%
Parallel Capability Up to 6 units (3+ units can form three-phase output)
Protection Degree IP20 (indoor only)
Operating Temperature 14 – 131°F (derates above 113°F)
Communications RS485 / CAN / USB / dry contact; optional Wi-Fi / GPRS
Integrated Breakers Utility / Load / Battery / PV
Certifications UL1741, IEC62109-1/-2, FCC Part 15 Class B, RoHS
Noise < 60 dB
Dimensions 28.46 × 17.64 × 5.91 in
Weight 62 lb
UPC 00199874999463

Warranty & Support

5-year BigBattery warranty with lifetime USA-based technical support. Ships from Texas, USA.

Customers also bought

    Complementary products

      Let customers speak for us

      from 128 reviews

      Works great the auto deploy option is life changing

      John DaPuzzo
      Minn Kota | Riptide Instinct Trolling Motor | 1358560
      Highly recommend

      Our 6x8 shelter is huge. More than enough space for our extended family.

      Sam H.
      Survive-a-Storm Extreme
      Worth every penny

      The 4x8 shelter is spacious and feels very safe. Glad we made the investment.

      Rachel A
      Survive-a-Storm Extreme
      Built to last

      Bought the 8-person model — heavy duty and exactly what we needed for our family.

      Anthony Collins
      Survive-a-Storm Extreme
      Strong and secure

      We went with the 5-person shelter. The steel feels rock solid and gives real peace of mind.

      Patricia M.
      Survive-a-Storm Extreme
      Solid motor

      Quiet and powerful, performs well in saltwater.

      Chris Allen
      Minn Kota | Riptide Instinct Black Trolling Motor | 1358583
      Tons of fun

      I bought the blue version for my son — fast shipping and solid build. He rides it every weekend.

      John Bing
      MotoTec | Pro 60V/15.6Ah 2000W Lithium Electric Dirt Bike
      Very sturdy

      The build quality is top-notch.

      Michael J
      Swisher ESP Safety Shelter- 9 Person Residential Capacity
      Better than expected

      Customer service helped me decide between the green and red. Ended up with green and love it.

      Derrick Hall
      MotoTec | Pro 60V/15.6Ah 2000W Lithium Electric Dirt Bike
      Good overall

      Works fine, but the setup guide could be more detailed.

      Nathan Scott
      Minn Kota | Riptide Instinct Black Trolling Motor | 1358583
      Reliable

      Took it out this weekend, no issues at all.

      Jessica H
      Minn Kota | Riptide Instinct Black Trolling Motor | 1358583
      Smooth delivery

      Ordered the MotoTec Pro 60v Blue. Arrived on time and packaged well.

      Nicole J.
      MotoTec | Pro 60V/15.6Ah 2000W Lithium Electric Dirt Bike
      Exactly what I needed

      Smooth performance and quick delivery.

      George King
      Minn Kota | Riptide Instinct Black Trolling Motor | 1358583
      Solid product

      I chose the blue bike. Works great, though the shipping box had a small dent — no damage to the bike.

      Dan C.
      MotoTec | Pro 60V/15.6Ah 2000W Lithium Electric Dirt Bike
      Trustpilot