SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

Name: SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)
Brand: SunGoldPower
SKU: SGR-18K20E
Price: 15689.0 USD
Availability: InStock

BRAND:

SunGoldPower

| SKU:

SGR-18K20E

$15,689.00

Free shipping with delivery between Apr 02 - Apr 09

Quantity

#1 Authorized SunGoldPower Distributor

All products come with manufactured warranties

Free Shipping + No Sales Tax

More money in your pockets for your renewable

Hassle-Free Returns & Exchanges

Safe shopping for your hard-earned money

Talk To A Real Person

Get help from our specialists —

live chat or call anytime

SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

High-Power Off-Grid Solar System for Homes, Farms, and Remote Applications

The SunGoldPower SGR-18K20E Off-Grid Solar Kit is a complete energy solution built for demanding power needs. Designed for off-grid living, backup power, and remote installations, this kit combines 20 high-efficiency 415W monocrystalline solar panels with a powerful 18kW pure sine wave inverter and a 20.48kWh LiFePO₄ battery bank. The 48V DC architecture ensures efficient energy delivery, while split-phase 120/240V output supports heavy loads and residential systems.

Key Features

High-Output Solar Array: 20 × 415W monocrystalline panels provide strong solar input for reliable daily energy production.
20.48kWh LiFePO₄ Battery Storage: Safe, long-lasting lithium iron phosphate batteries offer stable energy storage with deep-cycle capability.
18kW Pure Sine Wave Inverter: Delivers clean, stable power for sensitive electronics and high-demand appliances.
Split-Phase 120V/240V Output: Supports standard U.S. residential and light commercial power needs.
Efficient 48V System Design: Reduces energy loss and enables scalable performance for large setups.
All-in-One Off-Grid Solution: Includes all essential components for a professional, reliable installation.

Ideal Applications

Off-grid homes and cabins
Emergency backup power systems
Tiny homes and container homes
Farms and agricultural operations
Workshops, garages, and remote job sites

What’s Included

1 × 18,000W 48V DC to 120V/240V AC split-phase inverter
20 × 415W monocrystalline solar panels
2 × 100A MPPT solar charge controllers
6 × 100AH 51.2V LiFePO₄ batteries
1 × enclosed battery cabinet
2 × 50ft solar extension cable sets (PV input)
2 × battery-to-MPPT cable sets
20 × mounting Z-brackets
1 × 400A DC breaker
2 × 50A PV breakers

Manuals:

12kw-18kw Inverter Installation Guide & Owner Manual (PDF)

LifePo4 5.12KWH Lithium Battery Installation Guide & Owner Manual (PDF)

415 Watts Solar Panels Installation Guide & Owner Manual (PDF)

Specifications

Parameter	Details
18,000 W Off-Grid Inverter Specifications
AC Output Power	18,000 W
Output Waveform	Pure Sine Wave
AC Output Voltage	120 / 240 V
AC Input Voltage	240 V
Inverter Type	Low Frequency Inverter
Generator Support	Yes
Surge Rating (20 s)	54.0 kW
Dimensions	28.7 × 16.5 × 8.7 in
Weight	197 lbs
Warranty	3 years
SG48100P LiFePO4 Battery Specifications
Nominal Voltage	51.2 V
Nominal Capacity	100 Ah
Energy Capacity	5.12 kWh
Charge Cut-off Current	5 A
Max Continuous Charge Current	100 A
Discharge Cut-off Voltage	43.2 V
Cycle Life	≥ 7,000 cycles
Communication Protocols	RS232 / RS485 / CAN (multi-protocol support)
Storage Temperature	14° – 113°F
Dimensions	19.3 × 18.9 × 5.5 in
Weight	93 lbs
Warranty	10 years
415 W Mono Solar Panel Specifications
Peak Power (Pmax)	415 W
Solar Cell Type	Monocrystalline
Production Tolerance	±3%
Maximum Power Current (Imp)	13.13 A
Maximum Power Voltage (Vmp)	31.61 V
Short Circuit Current (Isc)	13.79 A
Open Circuit Voltage (Voc)	38.82 V
Product Dimensions	67.8 × 44.6 × 1.4 in
Product Weight	45.1 lbs
Warranty	25 years
Certifications	UL 61730, TÜV, IEC, CEC, CE
100A MPPT Solar Controller Specifications
System Voltage	12 / 24 / 36 / 48 V Auto
Monitoring	Bluetooth & APP support
Max PV Open-Circuit Voltage	250 V
Max PV Short-Circuit Current	70 A
Rated Charging Current	100 A
Settable Charging Current	0–100 A
Solar Panel Power Support	12 V: 1,320 W; 24 V: 2,640 W; 36 V: 3,960 W; 48 V: 5,280 W
MPPT Tracing Efficiency	>99%
Dimensions	12.4 × 8.9 × 4.8 in
Weight	12.5 lbs
Warranty	3 years

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric	Formula & Example
Energy Consumption (Wh)	Formula: Watts × Hours Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah)	Formula: Watt-hours ÷ System Voltage (V) Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W)	Formula: Total Watts × 1.25 (safety margin) Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W)	Formula: Sum of all appliance watts used simultaneously Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery	Formula: (Battery Ah × Voltage) ÷ Total Load (W) Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application	System Recommendation
Basic lighting + phone charging	Recommended Battery: 50Ah – 100Ah (12V) Inverter Size: 100W – 200W Notes: For small backup setups
Home office (laptop, fan, TV)	Recommended Battery: 150Ah – 200Ah (12V or 24V) Inverter Size: 500W – 1000W Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights)	Recommended Battery: 200Ah+ (24V or 48V recommended) Inverter Size: 1000W – 1500W Notes: Ideal for longer backups or heavier loads
Business / shop power backup	Recommended Battery: 300Ah+ (48V system) Inverter Size: 2000W – 3000W Notes: Suitable for commercial setups or extended power outages

Why Shop With Us

Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products backed by full manufacturer warranties.
Fast, Reliable Shipping: Shipped from U.S. warehouses with quick, dependable freight options — keeping your project on track.
30-Day Hassle-Free Returns: Changed your mind? Enjoy a simple 30-day return process for peace of mind.
Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just experts who know off-grid power systems.
Expert Energy Guidance: Our solar and backup energy specialists are here to help with system design, product questions, and installation tips.
USA-Based Service: Local, knowledgeable, and friendly support right here in the U.S.
Secure Payments: Shop confidently with encrypted, secure checkout protecting your personal and payment information.
Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

$15,689.00

SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

SunGoldPower

SGR-18K20E

#1 Authorized SunGoldPower Distributor

Free Shipping + No Sales Tax

Hassle-Free Returns & Exchanges

Talk To A Real Person

SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

Key Features

Ideal Applications

What’s Included

Manuals:

SunGoldPower Off-Grid Solar Kit | 18kW 48V Split-Phase 120/240V | 20.48kWh LiFePO₄ Battery | 415W Panels (20-Pack)

Get In Touch:

Company Information:

Help Center:

Get In Touch:

Company Information:

Help Center

© Eco Grid Supply. All Rights Reserved

© Eco Grid Supply. All Rights Reserved

Added to your cart: