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Eco Solar Kits · Sungold Power · 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.
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!
Rated output with double the power available briefly for motor starts and other high-draw moments.
Runs standard household circuits and larger 240V appliances from the same system.
Two solar charge controllers built directly into the inverter, no separate hardware needed.
Included, not optional — check system status and performance remotely via the mobile app.
Parallel up to 6 identical inverters for up to 39kW combined, in single-phase, split-phase, or three-phase configurations.
Meets the standard utilities and inspectors look for on grid-interactive and off-grid inverter equipment.
Confirmed for this battery specifically — not just a general lineup-wide figure.
182mm Grade-A monocrystalline cells backed by a 25-year linear product warranty.
SPH6548P Inverter/Charger (×1)
| 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 type | AGM/Sealed/Gel/Flooded/Lithium + user-defined |
| Nominal battery voltage | 48 Vdc |
| Max. charging current | 140 A |
| No. of MPPT trackers | 2 (built-in) |
| Max. open circuit voltage | 550 Vdc |
| Charging modes | Hybrid / Utility / Solar Priority / Solar Only |
| Battery communication | CAN / RS485 (SunGoldPower batteries) |
| Wi-Fi | Built-in module (included) |
| Safety | UL 1741 Listed by ETL |
| Protection rating | IP20, indoor use only |
| Max parallel | 6 units, up to 39kW combined |
SG48100M LiFePO₄ Battery (×1)
| Rated capacity | 100 Ah |
| Nominal voltage | 51.2 V |
| Energy | 5,120 Wh (5.12 kWh) |
| Standard current | 50 A |
| Max. continuous current | 100 A |
| Cycle life | ≥7,000 @ 80% DOD |
| Warranty* | 10 years |
| Weight | ~95 lbs (43 kg) |
| Dimensions | 16.5 × 22.8 × 5.5 in |
| Protection rating | IP20 (battery box) |
| 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)
| 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% |
| 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 |
Yes — the SPH6548P inverter has two MPPT solar charge controllers built directly into the unit, no separate hardware needed.
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.
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.
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.
Given the voltages, currents, and battery wiring involved, installation should be handled by a qualified, licensed electrician familiar with your local code.
Upon completing your order, you will promptly receive an email confirming the order placement, indicating that we have received your order and pre-authorized your credit card for the purchase. Our next step is to contact our suppliers to confirm the item's availability and readiness for shipment. Should the item be on backorder or unavailable, we will notify you of the estimated lead time. If the provided lead time is unsatisfactory, we will cancel the pre-authorization and contact you via email or phone. If the item can be shipped within 5 business days, we will proceed with processing the charges and shipping your order.
In the event of incorrect shipping information provided at checkout, we will make every effort to track down the item using our shipping partners. Please be aware that refunds and returns are not available in such cases. However, we will do our utmost to locate the item. If successful, re-shipping fees of up to 20% of the item's value may apply.
If your order is in stock and we have successfully processed your credit card charges, the items will be shipped within five business days from the order date. You will receive tracking information via email within 24 hours of your order leaving the distribution center. Should tracking information not be received within six days of your order, please contact us at +1 (307) 317-7213. The cut off time is 4 pm EST.
We offer free shipping on all orders and applicable items and brands within the mainland of the US (Hawaii, Alaska, and Overseas Territories are exclusions).
Eco Solar Kits does not ship orders directly to Hawaii, Alaska, or Overseas Territories. Clients needing delivery to these locations must arrange a freight forwarder and enter the forwarder’s address as the shipping address. Eco Solar Kits will then ship the order to the designated freight forwarder under our standard shipping terms.
Typically, orders are processed immediately upon receipt, taking approximately 1-4 business days after order confirmation, payment, and pick-up time to fulfill.
The delivery time via freight carrier may vary between 4-6 business days, depending on your location.
To prevent delays, frustration, and additional costs, kindly inform us of any concerns regarding the delivery to your location. It's important to note that the following situations may incur additional costs:
You can reach us using the contact methods provided below:
At D&D Eco Power Goods LLC, we strive to ensure our customers are completely satisfied with their purchases. Our return and refund policies are designed to provide a fair and transparent process based on the delivery date of your item.
You have 30 days from the delivery date to initiate a return. To be eligible for a return, the item must meet the following conditions:
Items that do not meet these conditions will not be accepted for return.
To begin the return process, please follow these steps:
We prioritize customer satisfaction and aim to provide a seamless refund experience. This refund policy is based on the delivery date of your item to ensure fairness in the return process.
Refunds will be processed based on the delivery date of the returned product. Once the manufacturer receives and inspects your returned item, we will notify you regarding the approval or rejection of your refund. If approved, the refund will be processed through your original payment method, typically within 10 days. Please note that it may take some time for your bank or credit card company to process and post the refund.
For any questions or concerns regarding our return or refund policy, please do not hesitate to contact us:
