Sungold Power Off-Grid Solar Kit 15000W 48VDC 120V/240V LifePo4 30.72KWH Lithium Battery 20 X 415 Watts Solar Panels
Estimated Delivery Between
and .
Order within to get it by the earliest date.
Free Shipping In The USA | Call Us: 877-556-3347
Free Shipping In The USA | Call Us: 877-556-3347
Share it with us now and we will beat it. Get the best deal online, guaranteed!
and .
Order within to get it by the earliest date.
Build Your Perfect Off-Grid Rig With Our System Calculator
Visit CalculatorThe Sungold Power SGR-15K20E is a robust off-grid solar solution designed to provide reliable and sustainable energy for homes, cabins, workshops, or remote locations. This comprehensive kit includes twenty high-efficiency 415W monocrystalline solar panels, a powerful 15kW 48V DC to 120/240V AC split-phase inverter, and six 5.12kWh LiFePO₄ batteries, totaling 30.72kWh of energy storage. With an estimated daily production of approximately 30kWh based on 4 hours of sunlight, this system is ideal for powering essential appliances and electronics in off-grid settings.

High-Efficiency Solar Panels
Includes 20 x 415W monocrystalline solar panels, providing a total of 8.3kW solar input for maximum energy capture.
Powerful 15kW Inverter
A 15,000W 48V DC to 120/240V AC split-phase inverter capable of handling high-demand appliances and tools.
Expandable Energy Storage
Six 5.12kWh 51.2V LiFePO₄ batteries offer 30.72kWh total storage, with the option to add more batteries as needed.
Comprehensive Protection
Equipped with 1 x 400A DC breaker and 2 x 50A PV breakers to safeguard your system against overcurrent and short circuits.
Flexible Installation
Includes 20 sets of mounting Z-brackets and 2 sets of 50-foot solar extension cables for versatile setup options.


Everything you need is included with your product.
| Specification | Details |
| AC Output | 15000W |
| Output Waveform | Pure Sine Wave |
| AC Output | 120V / 240V |
| AC Input Voltage | 240V |
| Type | Low Frequency Inverter |
| Support | Generator |
| Surge Rating (20s) | 45.0KW |
| Dimension | 28.7 × 16.5 × 8 inch |
| Weight | 176.6 LB |
| Warranty | 3 Years |
| Specification | Details |
| Nominal Voltage | 51.2V |
| Nominal Capacity | 100AH |
| Energy | 5.12KWH |
| Charge Cut-off Current | 5A |
| MAX Continuous Charge Current | 100A |
| Discharge Cut-off Voltage | 43.2V |
| Cycle Life | ≥7000 |
| Communication Protocol | RS232 / RS485 / CAN Support multiple protocols |
| Storage Temperature | 14° ~ +113°F |
| Dimension | 19.3 × 18.9 × 5.5 inch |
| Weight | 93 lbs |
| Warranty | 10 Years |
| Specification | Details |
| Peak Power | 415W |
| Solar Cell | Monocrystalline |
| Product Tolerance | ±3% |
| Maximum Power Current (IMP) | 13.11A |
| Maximum Power Voltage (VMP) | 31.61V |
| Short Circuit Current (ISC) | 13.79A |
| Open Circuit Voltage (VOC) | 38.82V |
| Product Dimension | 67.8 × 44.6 × 1.4 inch |
| Product Weight | 45.1 lbs |
| Warranty | 25 Years |
| Certificates | UL61730, TUV, IEC, CEC, CE... |
| Specification | Details |
| System Voltage | 12V / 24V / 36V / 48V Auto |
| Support | Bluetooth and APP monitoring |
| Maximum PV Open-circuit Voltage | 250V |
| Maximum PV Short-circuit Current | 70A |
| Rated Charging Current | 100A |
| Settable Charging Current | 0–100A |
| Power of Solar Panel | 12V–1320W, 24V–2640W, 36V–3960W, 48V–5280W |
| MPPT Tracing Efficiency | >99% |
| Product Dimension | 12.4 × 8.9 × 4.8 inch |
| Weight | 12.5 lb |
| Warranty | 3 Years |
| Specification | Details |
| Max Continuous Output | 15000W |
| AC Output | 120V / 240V |
| DC Voltage | 48V |
| Total Watt of Panels | 8300W |
| Per Panel Watt | 415 Watt |
| Panel NO. | 20 pcs |
| Total KWH of Batteries | 30.72KWH |
| Chemistry | Lithium |
| Battery NO. | 6 pcs |
| Battery Spec | 48V 100AH |

Is this kit truly off-grid capable?
Yes. This kit is designed to operate completely independently from the utility grid. It includes a split-phase inverter, LiFePO₄ battery storage, solar charge controllers, and all necessary solar panels, making it a full-featured off-grid system.
Can I expand the battery or solar panel capacity in the future?
Absolutely. The inverter and charge controllers support expansion. You can add more solar panels and LiFePO₄ batteries depending on your future energy needs.
How much power does this system generate per day?
Assuming 4 hours of full sunlight per day, the system can generate up to 33.2kWh daily (8.3kW x 4 hours).
What appliances can this system run?
This system can support most household loads including refrigerators, air conditioners, lights, fans, TVs, well pumps, and electric tools — simultaneously depending on consumption levels and battery state.
Is this system suitable for use with grid-tied setups?
No. This specific setup is for off-grid applications only. It does not include net-metering features or grid-tied synchronization.
Do I need professional installation?
While this kit includes most of what’s needed for setup, we recommend hiring a licensed solar installer or electrician to ensure safe and proper configuration.
How long will the batteries last?
The included LiFePO₄ batteries typically last 10+ years with up to 6000+ cycles depending on usage, depth of discharge, and maintenance.
Shipping is FAST & FREE across the US. Read our full Shipping Policy here.
We offer market leading Easy 30 Day Returns. Read more about our Returns Policy here.
We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Off-Grid Source.
Trusted By 10,000+ Customers. See All Reviews.
I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!
Bruce D.
I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.
Jennene A.
I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.
Ray B.
I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!
Roger V.
I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.
Jeff S.
We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!
Jason
Very fast response times. Very professional. I highly recommend!
Ray W.
Sign up for emails and get exclusive offers, new product drops, and expert advice to help you build the right solar setup with confidence.