Matched power package
Combines major solar, storage, and inverter components so the system is easier to plan from the start.
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SunGoldPower
OFF GRID SOLAR KIT 12 X 450 WATTS SOLAR PANELS 4 X 5.12KWH LITHIUM BATTERY 8000W SOLAR INVERTER 48VDC 120V/240V SGM-8K20 - SGM-8K20 OFF GRID SOLAR KIT 12 X 450 WATTS SOLAR PANELS 4 X 5.12KWH LITHIUM BATTERY 8000W SOLAR INVERTER 48VDC 120V/240V SGM-8K20
SKU: SGM-8K20
$8,880.00
$11,840.00
Save $2,960.00
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SunGoldPower Off-Grid Solar Kit
OFF GRID SOLAR KIT 12 X 450 WATTS SOLAR PANELS 4 X 5.12KWH LITHIUM BATTERY 8000W SOLAR INVERTER 48VDC 120V/240V SGM-8K20
The OFF GRID SOLAR KIT 12 X 450 WATTS SOLAR PANELS 4 X 5.12KWH LITHIUM BATTERY 8000W SOLAR INVERTER 48VDC 120V/240V SGM-8K20 is a complete off-grid power package built around solar charging, lithium storage, and inverter output. It is made for customers who want a more complete path to backup power, remote power, or energy independence without piecing together the full system from scratch.
5.12KWH450W8000W48VDC120V240V12 X 450WOff-Grid
Backup and off-grid use
Built for properties that need stored energy, solar charging, and reliable AC output when grid power is limited or unavailable.
Simpler project planning
Helps reduce guesswork compared with sourcing panels, batteries, and inverter hardware separately.
A cleaner way to build a complete system
A complete solar power package saves time by bringing the major system pieces together around one goal: dependable stored power. It is built for customers who want a clearer path to an installed system instead of guessing through a long parts list.
- Built for customers planning a more complete solar and backup power system.
- Combines solar charging, lithium storage, and inverter output into one project-focused package.
- A strong fit for homes, cabins, farms, workshops, remote properties, and off-grid power builds.
- Helps reduce component-matching guesswork before installation.
Plan the solar array
Our solar panel selection guide helps compare panel types and ratings. For installation planning, the series versus parallel wiring guide explains the electrical difference between wiring panels in series and parallel.
Solar panel technical sheet
These kit options include SunGoldPower SGN-450-BDG5 450W bifacial N-type panels. Check the manufacturer panel datasheet (PDF) for module voltage, current, dimensions and installation limits before designing strings.
Package Includes
1 8000W 48Vdc 120/240Vac Inverter Up to 6 units Parallel
Package Includes
12 450W solar panels
Package Includes
4 100AH 51.2V LiFePO4 Batteries
Package Includes
2 50 Feet, Solar Extension Cables-Inverter PV input
Package Includes
12 Sets of Mounting Z-Brackets
Package Includes
1 200A DC Breaker
Package Includes
2 25A PV Breakers
Package Includes
2 2/0 AWG Cables (Breaker to Battery or Inverter Connection)
| OFF GRID SOLAR KIT 12 X 450 WATTS SOLAR PANELS 4 X 5.12KWH LITHIUM BATTERY 8000W SOLAR INVERTER 48VDC 120V/240V SGM-8K20 | |
| Selected variant SKU | SGM-8K20 |
|---|---|
| MODEL | |
| Model / SKU | SGM-8K20, SGM-8K20T |
| Product Type | Solar Power Kit |
| Available Variants | SGM-8K20; OFF GRID SOLAR KIT 12 X 450 WATTS SOLAR PANELS 2 X 10.24KWH LITHIUM BATTERY 8000W SOLAR INVERTER 48VDC 120V/240V SGM-8K20T (SGM-8K20T) |
| ELECTRICAL | |
| 450W solar panels — Rated Power | 450 W per panel |
| 450W solar panels — Model | SGN-450-BDG5 |
| 450W solar panels — Open-circuit voltage (Voc, STC) | 35.03 V |
| 450W solar panels — Short-circuit current (Isc, STC) | 16.05 A |
| 450W solar panels — Maximum power voltage (Vmp, STC) | 30.08 V |
| 450W solar panels — Maximum power current (Imp, STC) | 14.97 A |
| 450W solar panels — Module efficiency (STC) | 22.5% |
| 450W solar panels — Dimensions | 69.37 × 44.65 × 1.38 in |
| 450W solar panels — Weight | 53.35 lb per panel |
| 100AH 51.2V LiFePO4 Batteries — Battery Chemistry | LiFePO4 |
| 100AH 51.2V LiFePO4 Batteries — Nominal Voltage | 51.2 V |
| 100AH 51.2V LiFePO4 Batteries — Nominal Capacity | 100 Ah |
| 100AH 51.2V LiFePO4 Batteries — Nominal Energy | 5.12 kWh |
| 100AH 51.2V LiFePO4 Batteries — BMS Current | 100 A |
| Charge Voltage Setting Range | 48-58.4 V in 0.4 V steps |
| Rated Output Power | 8,000 W |
| Rated Output Voltage | 120/240 VAC (single-phase/split-phase) |
| Rated Frequency | 50/60 Hz |
| Output Wave | Pure sine wave |
| Parallel Number | 6 |
| Battery Type | Lithium-ion battery/lead-acid battery/user-defined battery |
| Rated Battery Voltage | 48 Vdc |
| Voltage Range | 40 Vdc−60 Vdc |
| Charge Current (Continuous / Maximum) | 100 A / 120 A |
| No. of MPPT Trackers | 2 |
| Max. Input Power | 11,000 W |
| Max. Input Current | 22/22 A |
| Input Voltage Range | 90 VAC−140 VAC |
| Input Frequency Range | 50/60 Hz |
| Bypass Overload Current | 63 A |
| MPPT Tracking Efficiency | 99.9% |
| Maximum Battery-Mode Efficiency | 92% |
| Discharge current | > 1A |
| Charge current | > 1A |
| Standard charging current | (25℃):example:0.2C(20A) |
| Efficiency | reach to 21.25%. |
| Short-circuit Current (Isc) | 14.09A |
| Module Efficiency | 21.3% |
| Maximum System Voltage | 1500Vdc |
| Maximum Series Fuse Rating | 20A |
| Output Cables | 4mm2,Length |
| Solar Array Configuration | 12 × 450W panels (5,400W rated total) |
| Battery System Voltage | 48VDC |
| Listed Capacity | 5.12KWH |
| Listed System Voltage | 120V |
| Listed Solar Power | 8000W |
| CONNECTIONS | |
| Communications | RS485 for PC/remote monitoring and BMS communication |
| BMS Communication | CAN |
| Communication | mode can be set |
| PHYSICAL | |
| 100AH 51.2V LiFePO4 Batteries — Dimensions | 19.3 × 18.9 × 5.5 in |
| 100AH 51.2V LiFePO4 Batteries — Weight | 93 lb |
| Dimension | 620 mm*445 mm*130 mm |
| Weight | 27 kg |
| Frame | Material Anodized aluminium alloy |
| OPERATING LIMITS | |
| Ambient temperature | -10°C−55°C (14°F−131°F), to ensure optimal operation |
| Protection level | IP20, for indoor use only |
| Certification | Safety IEC62109-1, IEC62109-2, and UL1741 |
| Warranty | ⚫ 5 year 95% output warranty, 10 year 90% output |
| Operating Temperature | Range -40~+185 °F (-40~+85 ) |
| PACKAGE | |
| Included Components | 1 × 8000W 48Vdc 120/240Vac Inverter Up to 6 units Parallel, 12 × 450 Watt Monocrystalline Solar Panels, 4 × 100AH 51.2V LiFePO4 Batteries, 2 × 50 Feet, Solar Extension Cables-Inverter PV input, 12 × Sets of Mounting Z-Brackets, 1 × 200A DC Breaker, 2 × 25A PV Breakers, 2 × 2/0 AWG Cables (Breaker to Battery or Inverter Connection) |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.
Which core components should arrive with the SGM-8K20 system?
The exact package is defined by the selected variant and its Package Includes list, centered on 12KW, 5.12KWH of battery storage, and 12 panels rated 450W each. Verify quantities for batteries, panels, controllers, cables, breakers, brackets, and racks before checkout because similar SunGoldPower kits use different component counts.
Will the SGM-8K20 run heating, pumps, and air conditioning simultaneously?
Do not size from nameplate watts alone. Add simultaneous continuous loads, then separately check startup demand and duration for compressors, pumps, motors, microwaves, and heating equipment against every inverter, leg, outlet, transfer, and battery-current limit.
How does the four-battery SGM-8K20 configuration change usable overnight backup planning?
Build an hourly watt-hour load profile and compare it with usable battery energy after reserve, inverter loss, battery temperature, standby consumption, and aging. High-power appliances may fit the inverter yet consume the available 5.12KWH much faster than expected.
What winter-solar check matters most for the SGM-8K20 package?
Daily harvest depends on site-specific peak sun hours, season, tilt, shade, snow, module temperature, wiring, and conversion loss. The string design must also keep cold open-circuit voltage, operating current, and tracker allocation inside the exact controller or inverter limits.
Does the SGM-8K20 include a code-ready critical-load panel for 5.12KWH of storage?
The title identifies a 120V/240V system, but an installer must still verify per-leg limits, load imbalance, neutral and ground treatment, transfer equipment, breakers, conductor sizes, and which circuits belong in the backed-up panel.