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Sungold Power 8,000W Complete Off‑Grid Solar Kit 48V 120V/240V Output 10.24 kWh Lithium Battery 5,400W Solar Panel SGK‑8MAX

SKU: SGK-8MAX
Availability: In stock
Regular price $6,979.00
Regular price $7,550.00 Sale price $6,979.00
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  • Home Backup
  • Cabin
25-year manufacturer warranty Backed by Sungold Power. Full coverage details in the Description tab.

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Eco Solar Kits · Sungold Power · SGK-8MAX

Sungold Power Complete Off-Grid Solar Kit 8000W 48V 120V/240V Output 10.24 kWh Lithium Battery 5,400 Watt Solar Panel SGK‑8MAX

A complete off-grid solar system — 8,000W dual-MPPT split-phase inverter, 10.24kWh of Bluetooth-enabled LiFePO₄ battery storage, and twelve 450W monocrystalline panels.

8,000WInverter Output
10.24kWhBattery Capacity
12×450WSolar Panels
120V/240VSplit-Phase Output

A modern house with solar panels on the roof, surrounded by greenery. An information box features the Sungold Power 8,000W Complete Off‑Grid Solar Kit (model SGK-8MAX), highlighting its components such as a 48V lithium battery with 10.24 kWh capacity, 5,400W solar panels for efficient energy generation, and dual 120V/240V output. The kit is promoted for home use or emergency backup power solutions.

What is Included with the SGK-8MAX Solar Kit

  • •1 x 8000 Watt 48V DC 120V/240V Inverter UL1741
  • •12 x 450 Watt Monocrystalline Solar Panels
  • •4 x 200AH Lifepo4 Batteries with Bluetooth
  • •12 x Set of Mounting Z-Brackets
  • •1 x 10AWG Solar Extension Cable for Inverter PV input
  • •1 x Controller-Battery Extension Cable
  • •1 x 200A DC Breaker
  • •2 x 25A PV Breakers

Explore our full selection of Sungold Power Kits to compare different configurations and find the best fit for your energy needs.

Technical Highlights

8,000W, 16,000W Peak

Rated output with double the power available briefly, supporting motors up to 5HP.

Split-Phase 120V/240V

Runs standard household circuits and larger 240V appliances from the same system.

Dual Built-In MPPT

Two solar charge trackers built directly into the inverter, supporting up to 11,000W of combined solar input at 99.9% tracking efficiency.

UL1741 Certified

Certified by ETL to UL1741, alongside IEC62109-1/2 safety standards.

Expandable to 6 Units

Parallel up to 6 identical inverters as a system's power needs grow.

Bluetooth Battery Monitoring

Each 12V battery pairs with a mobile app for live voltage, SOC, and cell-level data.

Built-In Heating Function

Batteries self-heat below 33.8°F to protect charging performance in cold conditions.

20.79% Panel Efficiency

182mm Grade-A monocrystalline cells backed by a tiered 25-year output warranty and 12-year material and workmanship coverage.

Full Specifications

SPH8048P Inverter/Charger (×1)

Output

Rated output power 8,000 W
Max. peak power 16,000 W
Rated output voltage 120/240Vac split-phase
Load capacity of motors 5 HP
Waveform Pure sine wave
Switch time 10ms (typical)

Battery

Compatible types Li-ion / Lead-acid / User-defined
Rated battery voltage 48 Vdc
Voltage range 40–60 Vdc
Max. PV charging current 180 A
Max. grid/generator charging 100 A
Max. hybrid charging 180 A

PV Input (Built-In Dual MPPT)

No. of MPPT trackers 2
Max. input power 11,000 W
Max. input current 22A / 22A
Max. open circuit voltage 500 Vdc
MPPT voltage range 125–425 Vdc
MPPT tracking efficiency 99.9%

Efficiency & Physical

Max. battery efficiency 92%
Weight 59.5 lbs (27 kg)
Dimensions 620 × 445 × 130 mm
Protection rating IP20, indoor only
Operating temp -10°C to 55°C (>45°C derated)
Noise <60 dB

Certification, Communication & Scaling

Safety IEC62109-1, IEC62109-2, UL1741 (ETL)
EMC EN61000-6-1, EN61000-6-3, FCC15 Class B
Communication RS485 / CAN / USB / Dry contact; WiFi/GPRS optional
Max parallel 6 units

200AH 12V LiFePO₄ Battery with Bluetooth (×4)

Capacity

Rated capacity 200 Ah
Nominal voltage 12 V
Combined (4 units) 10.24 kWh

Charge & Discharge

Charging voltage 14.4–14.6 V
Discharge cut-off voltage ≥10.8 V
Max. series connection 4 units (58.4V max)

Features

Monitoring Bluetooth app (iOS/Android)
Display LCD (voltage, SOC, per-cell)
Heating function On below 33.8°F, off above 42.8°F
Protection rating IP65

Environmental

Charging temp -4–113°F
Discharging temp -4–131°F

SG-450WM Monocrystalline Panel (×12)

Electrical

Max. power 450 W
Max-power voltage 34.2 V
Max-power current 13.16 A
Open-circuit voltage 41.72 V
Module efficiency 20.79%

Build & Certification

Cell type Mono 182×91mm (120 cells)
Weight (each) 54.0 lbs (24.5 kg)
Dimensions 75.16 × 44.65 × 1.38 in
Junction box IP68
Certification UL61730, CEC Listed

Warranty

5-year output ≥95%
10-year output ≥90%
25-year output ≥80%
Material & workmanship 12 years

What It's For

A complete, self-contained 8,000W system with split-phase output, sized for off-grid homes, cabins, and backup power applications.

Off-Grid Homes Cabins Backup Power

Diagram of a house with Sungold Power 8,000W Complete Off‑Grid Solar Kit (SGK‑8MAX) components, including 5,400W solar panels on the roof, an inverter, 10.24 kWh lithium battery storage, and connected home appliances—illustrating how the Sungold Power system seamlessly integrates into a residential environment for efficient renewable energy use.

Additional Documentation

Common Questions

Does this inverter have a built-in solar charge controller?

Yes — two MPPT trackers are built directly into the inverter, supporting up to 11,000W of combined solar input.

What's the actual usable battery capacity?

10.24kWh combined from four 12V 200Ah LiFePO₄ batteries, each with its own Bluetooth app for live voltage, SOC, and cell-level monitoring.

How are the batteries wired together?

Up to four 12V batteries can be connected in series (staying under the 58.4V maximum) to reach the system's 48V nominal input.

Can I add more solar panels later?

Yes — the inverter supports up to 11,000W of solar input in total, above the 5,400W (12×450W) included in this kit.

Do I need a licensed electrician to install this?

Given the voltages, currents, and battery wiring involved, installation should be handled by a qualified, licensed electrician familiar with your local code.

Included

What's in the kit

  • 12 x 450W solar panels (5400W total)
  • 1 x 8,000W 48V DC 120V/240V Inverter UL1741
  • 4 x 200Ah 12V LiFePO4 Battery with Bluetooth
  • 12 sets Mounting Z-Brackets
  • 1 set 10AWG Solar Extension Cable
  • 1 x Controller-Battery Extension Cable
  • 1 x 200A DC Breaker
  • 2 x 25A PV Breaker

Customer Reviews

Based on 2 reviews
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S
Sam Scott
Not a complete kit

Advertised as a complete kit.

This is not true.

There was no wire or terminals for the batteries. Just a breaker and the batteries. One would think that they would at least put something with the kit.

Also the 2 solar breakers had no way of mounting without ordering brackets for them.

Another $500 later and I should be able to get the system up and running.

(Review from sungoldpower.com)

T
The Castellano
Works Great, But!

This off grid set was a bit to install, once up and running the run time was used up quick. Tech support helped us get all set up but the information that is provided does not tell you how much usage you get with 4 batteries or what size generator you need and the wattage and volts needed to charge batteries. We purchased an 8500 watt inverter generator to run our house and then to charge batteries and to our surprise it was not enough power. It kept tripping the breaker on our generator. I feel this Info should be provided in the description. Don't get me wrong the system is great but does need more batteries and consumer needs to know about what size generator is needed to recharge batteries. We were disappointed to find that we spent 2200.00 on a generator that can't help us. Now we need 4 more batteries and a new generator. Do your research people, make sure you know all the specs of the system before purchase. We did that and still have issues.

(Review from sungoldpower.com)

Shipping information

Free shipping on all orders within the mainland US (Hawaii, Alaska and overseas territories excluded - a freight forwarder is required). Orders ship directly from our brand partners' warehouses across the U.S. Order confirmation is emailed immediately; if an item is unexpectedly backordered we notify you before your card is charged. In-stock items are processed within 1-4 business days (cut-off 4:00 PM EST), transit is 3-6 business days, and tracking is emailed within 24 hours of shipment. Typical delivery is 4-10 business days from purchase. Minimum order value is $69.

  • Carriers: FedEx, UPS, USPS, Estes, Roadrunner.
  • Freight deliveries to locations an 18-wheeler cannot reach, islands, or ferry/train access may incur additional carrier charges - tell us about access limits before ordering.
  • Orders lost due to an incorrect address entered at checkout cannot be refunded.
  • Questions: +1 (307) 317-7213 or hello@ecosolarkits.com, Mon-Sat 9:00 AM - 8:00 PM EST.

Read the full shipping policy

Return and refund policy

You have 30 days from the delivery date to initiate a return (35 days for orders placed Nov 25-30 and Dec 25-31). Items must be unused, in original packaging with tags attached, and returns require prior authorization from our team.

  • Damaged on arrival or wrong item: contact us within 24 hours of delivery (photos help) - we cover return shipping and issue a full refund or replacement.
  • Manufacturing defects: covered under the manufacturer's warranty - contact us for guidance.
  • Changed your mind: return shipping is the customer's responsibility and a 25% restocking fee may apply.
  • Cancelling before shipment: a 3% deduction covers platform fees.
  • Refunds are processed to the original payment method within approximately 10 days of the return being received and inspected.

To start a return: +1 (307) 317-7213, hello@ecosolarkits.com, or live chat. Read the full return and refund policy