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Sungold Power · 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.
Explore our full selection of Sungold Power Kits to compare different configurations and find the best fit for your energy needs.
Rated output with double the power available briefly, supporting motors up to 5HP.
Runs standard household circuits and larger 240V appliances from the same system.
Two solar charge trackers built directly into the inverter, supporting up to 11,000W of combined solar input at 99.9% tracking efficiency.
Certified by ETL to UL1741, alongside IEC62109-1/2 safety standards.
Parallel up to 6 identical inverters as a system's power needs grow.
Each 12V battery pairs with a mobile app for live voltage, SOC, and cell-level data.
Batteries self-heat below 33.8°F to protect charging performance in cold conditions.
182mm Grade-A monocrystalline cells backed by a tiered 25-year output warranty and 12-year material and workmanship coverage.
SPH8048P Inverter/Charger (×1)
| 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) |
| 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 |
| 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% |
| 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 |
| 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)
| Rated capacity | 200 Ah |
| Nominal voltage | 12 V |
| Combined (4 units) | 10.24 kWh |
| Charging voltage | 14.4–14.6 V |
| Discharge cut-off voltage | ≥10.8 V |
| Max. series connection | 4 units (58.4V max) |
| 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 |
| Charging temp | -4–113°F |
| Discharging temp | -4–131°F |
SG-450WM Monocrystalline Panel (×12)
| 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% |
| 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 |
| 5-year output | ≥95% |
| 10-year output | ≥90% |
| 25-year output | ≥80% |
| Material & workmanship | 12 years |
A complete, self-contained 8,000W system with split-phase output, sized for off-grid homes, cabins, and backup power applications.
Yes — two MPPT trackers are built directly into the inverter, supporting up to 11,000W of combined solar input.
10.24kWh combined from four 12V 200Ah LiFePO₄ batteries, each with its own Bluetooth app for live voltage, SOC, and cell-level monitoring.
Up to four 12V batteries can be connected in series (staying under the 58.4V maximum) to reach the system's 48V nominal input.
Yes — the inverter supports up to 11,000W of solar input in total, above the 5,400W (12×450W) included in this kit.
Given the voltages, currents, and battery wiring involved, installation should be handled by a qualified, licensed electrician familiar with your local code.
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)
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)
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.
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.
To start a return: +1 (307) 317-7213, hello@ecosolarkits.com, or live chat. Read the full return and refund policy
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