Eco Solar Kits · Sungold Power · SGM-655M
Sungold Power 6,500W Off‑Grid Solar Kit 48VDC 120VAC 5.12 kWh Powerwall Lithium Battery & 6×370W Solar Panels SGM‑655M
A complete off-grid solar system — 6,500W split-phase inverter, 5.12kWh of LiFePO₄ battery storage, and six 370W monocrystalline panels — sized for a cabin, shop, or RV.
Overview
Introducing our complete off-grid solar kit, designed as the perfect starting point to power your cabin, shop, or RV entirely off-grid. This comprehensive package includes six 370W solar panels, a 5.12kWh Powerwall battery, a 6,500W solar inverter, and a complete set of solar cables. With an approximate daily production of 5.92kW based on four hours of sunlight, this kit offers reliable energy generation.
Ideal for cabins, shops, RVs, and similar setups consuming around 177 kWh per month, this system provides the autonomy and sustainability you need. Additionally, the modular design allows for easy expansion with additional batteries and solar panels to suit your specific requirements.
If you’re looking for a broader selection of solar solutions, explore our Complete Solar Panel Systems collection— featuring a variety of high-quality kits tailored to different energy needs and installation types.
Embark on the journey of off-grid living and embrace the adventure with our solar energy kit!
What’s Included in the SGM-655M Solar Kit!
- •1 x 6500 Watt UL 1741 48V DC 120V AC Output Inverter
- •6 x 370 Watt Monocrystalline Solar Panels
- •1 x 100AH 51.2V PowerWall Lithium Battery
- •1 Sets X 50 Feet, Solar Extension Cables-Inverter PV input
- •6 x Set of Mounting Z-Brackets
Key Features
6,500W, 13,000VA Peak
Rated output with double the power available briefly for motor starts and other high-draw moments.
Split-Phase 120V/240V
Runs standard household circuits and larger 240V appliances from the same system.
Dual Built-In MPPT
Two solar charge controllers built directly into the inverter, no separate hardware needed.
Built-In WiFi Module
Included, not optional — check system status and performance remotely via the mobile app.
Expandable to 6 Units
Parallel up to 6 identical inverters for up to 39kW combined, in single-phase, split-phase, or three-phase configurations.
UL 1741 Listed by ETL
Meets the standard utilities and inspectors look for on grid-interactive and off-grid inverter equipment.
≥7,000-Cycle Battery, 10-Year Warranty
Confirmed for this battery specifically — not just a general lineup-wide figure.
20.30% Panel Efficiency
182mm Grade-A monocrystalline cells backed by a 25-year linear product warranty.
Full Specifications
SPH6548P Inverter/Charger (×1)
Output
| Rated output power | 6,500 W |
| Max. peak power | 13,000 VA |
| Rated output voltage | 120/240Vac split-phase or 120Vac single-phase |
| Waveform | Pure sine wave |
Battery Input
| Battery type | AGM/Sealed/Gel/Flooded/Lithium + user-defined |
| Nominal battery voltage | 48 Vdc |
| Max. charging current | 140 A |
PV Input
| No. of MPPT trackers | 2 (built-in) |
| Max. open circuit voltage | 550 Vdc |
Modes & Communication
| Charging modes | Hybrid / Utility / Solar Priority / Solar Only |
| Battery communication | CAN / RS485 (SunGoldPower batteries) |
| Wi-Fi | Built-in module (included) |
Certification & Scaling
| Safety | UL 1741 Listed by ETL |
| Protection rating | IP20, indoor use only |
| Max parallel | 6 units, up to 39kW combined |
SG48100M LiFePO₄ Battery (×1)
Capacity
| Rated capacity | 100 Ah |
| Nominal voltage | 51.2 V |
| Energy | 5,120 Wh (5.12 kWh) |
Charge & Discharge
| Standard current | 50 A |
| Max. continuous current | 100 A |
| Cycle life | ≥7,000 @ 80% DOD |
| Warranty* | 10 years |
Physical
| Weight | ~95 lbs (43 kg) |
| Dimensions | 16.5 × 22.8 × 5.5 in |
| Protection rating | IP20 (battery box) |
Environmental & Scaling
| Charging temp | 32–113°F |
| Discharging temp | -4–140°F |
| Marketed parallel limit** | Up to 16 units |
| Documented max addressing** | 63 units |
SG-370WM Monocrystalline Panel (×6)
Electrical
| Max. power | 370 W |
| Max-power voltage | 33.2 V |
| Max-power current | 11.15 A |
| Open-circuit voltage | 40.17 V |
| Module efficiency | 20.30% |
Build & Warranty
| Cell type | Mono 166×83mm (120 cells) |
| Weight (each) | 41.3 lbs (18.75 kg) |
| Dimensions | 69.3 × 40.9 × 1.4 in |
| Junction box | IP68 |
| Warranty | 25yr linear product + 10yr workmanship |
What It Can Power
Additional Documentation
Common Questions
Does this system have solar charge controllers built in?
Yes — the SPH6548P inverter has two MPPT solar charge controllers built directly into the unit, no separate hardware needed.
Can I connect multiple inverters together?
Yes — up to 6 identical SPH6548P inverters can run in parallel for up to 39kW combined, in single-phase (120VAC), split-phase (240VAC), or three-phase (208V) configurations.
What’s the actual usable battery capacity?
5.12kWh from a single LiFePO₄ battery, rated for at least 7,000 cycles to 80% depth of discharge, backed by a 10-year warranty confirmed for this product specifically.
How many batteries can I add to this system?
This product’s own marketing states support for up to 16 batteries in parallel. The battery’s own manual documents a higher theoretical addressing capacity of 63 via its DIP-switch table — worth confirming the practical limit directly before scaling significantly.
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.
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