SunGold Power 8kW 48VDC Complete Off-Grid Solar Kit | 5400W Solar

The SunGold Power SGK-8MAX Pairs an 8kW Inverter With 5,400W of Solar and 10.24kWh of LiFePO4 Storage

The SunGold Power 8kW 48VDC Complete Off-Grid Solar Kit (SGK-8MAX) is a complete off-grid solar kit built around an 8000W split-phase all-in-one inverter (SPH8048P). It includes 12 x 450W monocrystalline solar panels for 5,400W of solar, 4 x 12V 200Ah LiFePO4 batteries with Bluetooth (LFP12-200A) for 10.24kWh of storage, and the breakers, cables, and mounting hardware SunGold lists for the system.

This kit pairs SunGold's 8kW split-phase inverter with twelve 450W panels for a 5,400W array and four 12V 200Ah Bluetooth batteries for 10.24kWh of storage.

SunGold Power SGK-8MAX 8kW Solar Kit Features

8kW Split-Phase Inverter

The SPH8048P is an 8000W all-in-one inverter with 120/240VAC split-phase pure sine wave output, 16,000W of peak power, and a 5 HP motor loading rating. Two MPPT trackers accept up to 11,000W of solar, and the inverter charges batteries at up to 180A from solar or 100A from the grid or a generator. It is certified to UL1741 and includes Wi-Fi monitoring.

10.24kWh of LiFePO4 Storage

Each LFP12-200A is a 12.8V, 200Ah (2.56kWh) LiFePO4 battery with a 200A BMS, an LCD display, Bluetooth monitoring through the SGP Battery app, and self-heating that switches on below about 34°F. The IP65 case and 4,000-plus cycle rating make it a durable choice, and SunGold backs it with a 5-year warranty. Four batteries combine for 10.24kWh of storage.

5,400W Solar Array

The 450W monocrystalline PERC panels (SG450WM) use 120 half-cut cells, carry UL61730 certification and CEC listing, and are rated for 2,400Pa wind and 5,400Pa snow loads. SunGold backs them with a 12-year material and workmanship warranty and a 25-year power output warranty. At four peak sun hours, the 12-panel array produces about 21.6kWh per day. Actual output depends on location, season, tilt, and shading.

Built-In MPPT Solar Charging

The inverter has built-in MPPT solar charging, so the panels connect directly to the inverter without a separate charge controller. That keeps wiring simpler and reduces the number of components to mount.

Breakers, Cables, and Mounting Hardware

SunGold includes DC and PV breakers, battery and inverter cables, 50-foot solar extension cables, and Z-brackets for mounting the panels, all sized for this kit. SunGold also publishes a wiring diagram for the kit on its website. Having matched protection and cabling in the box saves sourcing time and helps keep the installation consistent.

Room to Expand

Up to six SPH8048P inverters can be paralleled for more output. You can add more LFP12-200A batteries later to extend storage. Add panels within the inverter solar input limits as your energy use grows.

Real-World Applications

Off-grid homes. Run household loads including refrigerators, washers, and well pumps.

Homesteads and farms. Power barns, shops, and pumps far from the grid.

Whole-home backup. Keep power on through extended outages.

Workshops and offices. Support tools, computers, and HVAC loads.

How It Compares to Common Alternatives

Versus buying components separately. A kit pairs an inverter, batteries, and panels that SunGold has matched for voltage and current, with breakers and cables sized for the system and a published wiring diagram.

Versus a fuel generator alone. Solar and batteries run quietly with no fuel deliveries. Many off-grid owners still keep a generator for long cloudy stretches, and the inverter can charge the batteries from one.

Versus the SGM-8K20. The SGM-8K20 uses the same inverter with bifacial panels and 20.48kWh of server rack storage.

Is This Solar Kit the Right Fit

• Daily energy. The array produces about 21.6kWh per day at four peak sun hours. Compare that with your average daily use.
• Loads. The inverter provides 8,000W of continuous 120/240VAC split phase output. This kit supplies 240V for well pumps, dryers, and other 240V appliances.
• Battery location. The LiFePO4 batteries have IP65 cases, but still need a protected location within their temperature ratings.
• Mounting. Z-brackets are included for flat surface mounting. Ground mounts or racking for other mounting styles are sold separately.
• Installation. Have a qualified electrician install the system and follow local codes and permit requirements.

This may be a good fit if

• You want a matched solar, battery, and inverter package
• You need 120V and 240V power
• Your daily energy use is around 21.6kWh or less
• You plan to expand the system later

Common Questions

How Much Energy Will This Kit Produce?

At four peak sun hours, the 5,400W array produces about 21.6kWh per day. Production varies with your location, season, and panel orientation.

Does It Need a Separate Charge Controller?

No. Solar charging is built into the inverter.

Can I Add More Batteries Later?

You can add more LFP12-200A batteries later to extend storage.

Can It Charge From a Generator?

Yes. The inverter accepts AC input from the grid or a generator to charge the batteries and pass power to loads.

Is Installation Included?

No. The kit ships as components. We recommend a qualified electrician for installation and permitting.

What's Included

• 1 x 8000W 48VDC 120/240VAC Inverter (Up to 6 Units in Parallel)
• 12 x 450 Watt Monocrystalline Solar Panels
• 4 x 200Ah LiFePO4 Batteries with Bluetooth
• 12 x Sets of Mounting Z-Brackets
• 2 x 50 Feet Solar Extension Cables (Inverter PV Input)
• 1 x 200A DC Breaker
• 2 x 25A PV Breakers
• 1 Set x 2/0 AWG Cable (Breaker to Inverter Connection)

Power Your Property With Solar

The SunGold Power 8kW 48VDC Complete Off-Grid Solar Kit brings together the inverter, batteries, panels, and protection an off-grid system needs. At Outbound Power, we help customers size solar kits, plan battery banks, and choose the right accessories. If you have questions, our team is happy to help.

SunGold Power 8000W 48V Complete off Grid Solar Kit Manuals