SunGold Power Off-Grid Solar Kit – 18000W – 48VDC 120V/240V – LiFePO4 20.48kWh Battery – 20 × 415W Panels

The SunGold Power 18kW Off-Grid Solar Kit is a high-capacity energy system built for residential, cabin, and light commercial applications. With a powerful 18kW split-phase inverter, 20.48kWh LiFePO4 battery storage, and twenty 415W monocrystalline panels, this kit is designed to deliver reliable, scalable off-grid electricity.

Its 48VDC battery bank and split-phase 120V/240V output make it capable of powering everything from lights, refrigerators, and entertainment systems to larger loads like air conditioners, water pumps, and workshop tools. The system is expandable, allowing additional batteries and panels to be integrated as energy demands grow.

Key Features

• High-Capacity Inverter – 18,000W split-phase inverter delivers stable 120V/240V output for household and commercial use.

• Advanced Battery Storage – 6 × 100Ah 51.2V LiFePO4 batteries (20.48kWh) in a secure enclosed cabinet provide long-lasting energy storage.

• Efficient Solar Panels – 20 × 415W monocrystalline panels ensure high conversion efficiency and dependable performance.

• Smart Charge Controllers – Dual 100A MPPT charge controllers maximize solar input efficiency.

• Complete System Package – Includes breakers, cables, mounting brackets, and battery cabinet for a ready-to-install setup.

• Expandable Design – System can grow with your needs by adding more batteries and panels.

Specifications

Inverter

• Model: SunGold Power SGR-18K20E

• Capacity: 18,000W

• Input Voltage: 48V DC

• Output Voltage: 120V/240V split-phase AC

Battery

• Type: LiFePO4 (Lithium Iron Phosphate)

• Capacity: 6 × 100Ah, 51.2V (20.48kWh total)

• Housing: Steel enclosed cabinet

Solar Panels

• Quantity: 20

• Type: Monocrystalline

• Rating: 415W each

Charge Controller

• Type: MPPT

• Quantity: 2 × 100A

Kit Overview

• Daily Production: ~30kWh/day (with 4 hours peak sunlight)

• Applications: Off-grid homes, cabins, small businesses, and workshops

What’s Included

• 1 × 18,000W 48VDC 120V/240V Split-Phase Inverter

• 20 × 415W Monocrystalline Solar Panels

• 6 × 100Ah 51.2V LiFePO4 Batteries

• 1 × Battery Cabinet (for 6 batteries)

• 2 × 100A MPPT Solar Charge Controllers

• 2 × 50ft Solar Extension Cables (Inverter PV input)

• 2 × Battery-to-MPPT Controller Cables

• 20 × Sets of Z-Bracket Mounting Hardware

• 1 × 400A DC Breaker

• 2 × 50A PV Breakers

User Manuals

📑 SunGold Power 18000W Solar Inverter Manual (PDF)
📑 SunGold Power LiFePO4 5.12kWh Battery Manual (PDF)
📑 SunGold Power 415W Solar Panel Manual (PDF)
📑 SGR-18K20E Kit Wiring Diagram (PDF)

Warranty

• Solar Panels – 25-year performance warranty

• Inverter & Controllers – 12–36 months (depending on model)

• LiFePO4 Batteries – 12–36 months (depending on model)

• Returns – 30-day return window (with conditions)

• Warranty applies to original purchaser only; excludes misuse, unauthorized modification, or repair.