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The SunGold Power 6kW 48VDC Off-Grid Solar Kit (SGK-PRO64) builds a 48V system around a 6000W low-frequency inverter charger with 120V and 240V output. Six 370W mono black panels feed a 100A MPPT charge controller, and four 12V 200Ah LiFePO4 batteries wired in series make a 10.24kWh, 48V battery bank.
SunGold rates this system at about 7-9kWh of power per day and describes it as a fit for a small off-grid house. It also suits remote cabins where you want quiet 120V and 240V power with a generator as backup.
The LFP6K48V240VSP is a low-frequency pure sine wave inverter, battery charger and AC transfer switch in one. It delivers 6000W continuous with an 18000W surge rating for 20 seconds, at 120V and 240V for a standard home panel.
Each 12.8V 200Ah battery stores 2560Wh and has a 200A BMS, an LCD and Bluetooth monitoring. SunGold rates these batteries for up to four in series, which is exactly how this 48V bank is built. They are IP65 rated and rated for at least 4000 cycles.
When a battery's core drops below 33.8°F, its heater turns on and runs until 42.8°F. That helps the bank keep taking a charge from solar through winter.
On a 48V bank the SGC4825100A accepts up to 5280W of panels and up to 250V open circuit. That is more than twice this 2220W array, so you have room to add panels later. Its Bluetooth module shows charging data on your phone.
From a 240V grid or generator input, the three-stage charger refills the batteries at up to 60A, and the charge current is adjustable. The inverter can start a generator when battery voltage runs low and stop it once charging is done.
A built-in 80 amp transfer switch moves your loads between shore power and battery power within 10ms. The inverter runs in AC priority by default, and a switch sets battery priority instead.
Small off-grid houses. Supply daily household loads from solar, with 10.24kWh in reserve for evenings.
Remote cabins. Get 120V outlets and 240V circuits where there is no utility line.
Generator-assisted sites. Let auto generator start handle charging after cloudy stretches.
Backup at home. Use the transfer switch to keep loads running when grid power drops.
Versus the SGK-PRO62 24V version. SunGold also builds this kit at 24V with four 24V 100Ah batteries in parallel, a 300A DC breaker, a 400A busbar and 2/0 AWG cables. This 48V version uses a 200A breaker, a 250A busbar and 1/0 AWG cables.
Versus an all-in-one solar inverter. Here the inverter and solar charge controller are separate units, so each can be serviced or upgraded on its own.
Versus a parallel-capable inverter. This LFP inverter cannot be paralleled with a second unit. If you expect to need more than 6000W later, a parallel-capable inverter kit may suit you better.
This may be a good fit if
SunGold rates this 6000 watt solar system at about 7-9kWh per day, which it describes as suitable for a small off-grid house. Actual output depends on your sun hours.
No. This inverter needs an external solar charge controller. The six panels connect in series through the 25A PV breaker to the included 100A MPPT controller.
No. This low-frequency inverter is not designed to run in parallel with other units.
Four 12.8V batteries in series make the 48V bank the inverter needs, with 10.24kWh in total. Each battery weighs 48.5 pounds and has its own BMS and Bluetooth monitoring.
The SunGold Power 6kW 48VDC Off-Grid Solar Kit gives a small off-grid home 6000W of 120V and 240V power, 2220W of solar and 10.24kWh of self-heating lithium storage. At Outbound Power, we help customers size arrays, batteries and inverters for off-grid living. If you have questions, our team is happy to help.
SunGold Power 6kW 48VDC Off-Grid Solar Kit (SGK-PRO64) Specifications |
|
|---|---|
| Kit Summary | |
| Kit Model | SGK-PRO64 |
| Inverter | 1 x 6000W 48V DC 120V/240V low frequency inverter charger (LFP6K48V240VSP) |
| Solar Charge Controller | 1 x 100A MPPT (SGC4825100A) |
| Battery Bank | 4 x 12V 200Ah LiFePO4 in series (48V, 10.24kWh) |
| Solar Array | 6 x 370W monocrystalline panels in series (2220W) |
| Daily Output | About 7-9kWh per day |
| System Voltage | 48V DC |
| AC Output | 120V and 240V split phase |
| Solar Panel Certificates | UL61730/CE/TUV |
| Inverter (LFP6K48V240VSP) | |
| Continuous Output Power | 6000W |
| Surge Rating | 18000W (20 seconds) |
| AC Output | AC 120V and AC 240V |
| AC Input | 240V |
| AC Input Range (Grid or Generator) | 140V-270VAC / 184V-253VAC (select by SW2) |
| Output Wave | Pure sine wave |
| Typical Transfer Time | 10ms (max) |
| Nominal Efficiency | >88% |
| Nominal Input Voltage | 48.0Vdc |
| Minimum Start Voltage | 40.0Vdc |
| Idle Consumption | 81W |
| Power Saver Mode Idle Consumption | 30W |
| Charger Rate | 60+/-5A, 3-step, adjustable off/0%-100% |
| Over Charge Protection Shutdown | 62.8V |
| Parallel Operation | Not supported |
| Other Features | Automatic generator start, AC/battery priority selector, LCD display, remote control, BTS cable |
| Unit Size | 25.6 x 9.1 x 7.5 inch |
| Unit Weight | 76.7LB |
| Solar Charge Controller (SGC4825100A) | |
| Rated Charge Current | 100A |
| System Voltage | 12V/24V/36V/48V auto-detect |
| Max PV Input Power | 5280W at 48V |
| Max PV Open-Circuit Voltage | 250V |
| MPPT Tracking Efficiency | >99% |
| Self-Consumption | 0.54W |
| Communication | Bluetooth 4.0 BLE, TTL/isolated RS485 |
| Protection Grade | IP32 |
| Product Size | 12.4 x 8.9 x 4.8 inch |
| Batteries (12V 200Ah LiFePO4, x4) | |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 200Ah |
| Energy | 2560Wh each |
| Voltage Window | 10.8-14.6V |
| Built-In BMS | 200A |
| Max Continuous Charge Current | 150A |
| Peak Discharge Current | 245A (15s ±2s) |
| Recommended Charge / Discharge Current | 100A / 100A |
| Series / Parallel Limit | Up to 4 in series or 4 in parallel |
| Cycle Life | ≥4000 (0.2C, 77°F, 80% DOD) |
| Operating Temperature | Charge -4°F to 113°F, discharge -4°F to 131°F |
| Self-Heating | On below 33.8°F (1°C), off at 42.8°F (6°C) |
| Monitoring | LCD and Bluetooth |
| IP Rating | IP65 |
| Terminal Type | M8 |
| Dimensions | 19.7 x 9.4 x 9.1 inch |
| Weight | 48.5LB |
| Solar Panels (SG370WM, x6) | |
| Peak Power | 370W |
| Max Power Voltage (Vmp) | 33.2V |
| Max Power Current (Imp) | 11.15A |
| Open Circuit Voltage (Voc) | 40.17V |
| Short Circuit Current (Isc) | 11.81A |
| Module Efficiency | 20.31% |
| Max System Voltage | 1500V |
| Mechanical Load | 5400Pa snow, 2400Pa wind |
| Junction Box | IP68 |
| Dimensions | 63.23 x 44.65 x 1.38 inch (1606 x 1134 x 35mm) |
| Weight | 41.8lbs (19.0kg) |
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