In the context of a rapidly evolving global energy landscape, stable, reliable, and versatile off-grid power systems are becoming an indispensable need across more and more industries. In scenarios such as road construction, mining operations, forestry work, and water supply in remote areas, traditional power infrastructure often cannot reach, while ordinary energy storage products struggle to withstand high-impact loads and harsh environmental conditions. Driven by these real-world demands, ONESUN Technology (Shenzhen) Ltd.’s SSIO series independent solar power stations are emerging as a preferred solution for outdoor industrial-grade power applications.

From a product positioning perspective, the SSIO series is not a simple combination of “battery + inverter.” It is an integrated, independent power system built on a mature industrial-grade anchor technology platform. Its core advantages—strong impact resistance, stable output, and excellent environmental adaptability—make it especially suitable for B2B scenarios that require continuous and high-quality power supply. The two flagship models, 5kW 51.2V 200Ah and 10kW 51.2V 400Ah, effectively cover the power needs of small-to-medium engineering equipment and high-power industrial machinery, forming a clearly stratified product logic.

Industrial Off-Grid Solar Generator 5kW 10kW

Delving into its technical highlights, the SSIO series adopts a low-frequency transformer architecture, which sets it apart from the high-frequency designs commonly seen in the market. The greatest advantage of low-frequency transformers lies in their natural tolerance to inrush current and impact loads. In actual use scenarios—such as motor startup or compressor operation—sudden large current surges frequently occur. The SSIO system can drive these inductive loads without voltage drop, ensuring stable equipment operation. This capability is almost decisive for applications like mining machinery and water pump systems.

Industrial Off-Grid Solar Generator 5kW 10kW

Furthermore, the built-in isolation transformer enhances system safety and compatibility. By effectively eliminating DC components and suppressing common-mode noise, the SSIO series delivers cleaner electrical output and maintains excellent compatibility with external power sources such as generators. This means that even in hybrid power systems (e.g., diesel-solar mix) or unstable grid conditions, users can still enjoy steady and reliable power supply.

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Parameter	SSIO-5kW / 51.2V 200Ah (10.24kWh)	SSIO-10kW / 51.2V 400Ah (20.48kWh)
🔹 Model Overview
Product Series	Iron Bull SSIO-5kW	Iron Bull SSIO-10kW
System Configuration	5kW inverter / 51.2V 200Ah LiFePO₄	10kW inverter / 51.2V 400Ah LiFePO₄
⚡ AC Input Data
AC Input Voltage	220VAC	220VAC
AC Input Voltage Range	154-264±3VAC (Normal) / 185-264±3VAC (UPS)	154-264±3VAC (Normal) / 185-264±3VAC (UPS)
Max AC Charging Current	63A	104A
Input Frequency	50/60Hz ±5%	50/60Hz ±5%
☀️ PV Parameters
PV Max Power	6400W	6400W
PV Working Method	MPPT (Maximum Power Point Tracking)	MPPT
PV Input Voltage Range	60-150V	60-150V
PV Max Open Voltage (Voc)	150V	150V
PV Max Input Current	120A	120A
🔋 Battery Data (LiFePO₄)
Battery Type	Lithium Iron Phosphate (LiFePO₄)	Lithium Iron Phosphate (LiFePO₄)
Battery Voltage	51.2V DC	51.2V DC
Battery Capacity	200Ah	400Ah
Battery Energy (Usable)	10.24 kWh	20.48 kWh
Continued Discharge Current	200A	400A
Max Discharge Current (Peak)	300A	600A
🔌 AC Output Data
Rated Output Power (VA / W)	6000VA / 5000W	12000VA / 10000W
Output Voltage	220VAC ±10%	220VAC ±10%
Output Frequency	50Hz / 60Hz ±1%	50Hz / 60Hz ±1%
Output Waveform	Pure Sine Wave	Pure Sine Wave
Transfer Time (UPS / INV)	≤10ms (UPS mode) / ≤20ms (INV mode)	≤10ms (UPS mode) / ≤20ms (INV mode)
Overload Capacity	≤1.3 × Rated Power for 30 seconds	≤3 × Rated Power for 10 milliseconds
Impact Resistance	— (N/A)	— (N/A)
🛡️ Protection & Safety Functions
Protection Features	Input over/under voltage protection, battery overcharge protection, battery over-discharge protection, battery over-temperature protection, overload protection, short circuit protection, output over/under voltage protection.
📟 General Specifications & Interfaces
Display	LED Indicators (System status & alarms)	LED Indicators (System status & alarms)
PayGo Support	Optional Ready for PayGo	Optional Ready for PayGo
Communication Ports	RS232 / RS485 / Bluetooth (BT)	RS232 / RS485 / Bluetooth (BT)
Cooling Method	Forced Air Cooling (Intelligent fan control)	Forced Air Cooling
Operating Temperature	Charging: 0°C ~ 50°C \| Discharging: -15°C ~ 60°C	Charging: 0°C ~ 50°C \| Discharging: -15°C ~ 60°C
IP Protection Rating	IP54 (Dust & splash resistant)	IP54
Storage Temperature	-15°C ~ 45°C	-15°C ~ 45°C
Relative Humidity	5% ~ 90% RH (Non-condensing)	5% ~ 90% RH (Non-condensing)
Certifications & Standards	EN-IEC60335-1, EN-IEC60335-2-29, IEC 62109-1, EN-IEC62133
Warranty & Quality	Industrial grade / 5-year standard warranty*	Industrial grade / 5-year standard warranty*

Low-frequency transformers also inherently provide filtering capabilities, giving the SSIO series exceptional resistance to electromagnetic interference. Even in high-temperature, high-humidity, or strong electromagnetic environments, its power output remains clean and stable—an essential quality for communication devices, precision instruments, and automated control systems.

From an application standpoint, the value of the SSIO series lies not only in “availability” but in “long-term stability.” In many developing or remote regions where power grid fluctuations, voltage instability, and frequent outages are common, the SSIO system continues to operate reliably under extreme conditions, significantly reducing equipment failure rates and maintenance costs. This industrial-grade reliability distinguishes ONESUN’s products from ordinary consumer-level storage solutions.

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In fact, the SSIO series is only one component of ONESUN’s comprehensive product matrix. As a seasoned manufacturer with deep expertise in the energy storage industry, ONESUN also offers solutions for telecom base station batteries, integrated solar systems, and PAYGO installment-based energy plans. In telecom applications, its long-cycle-life LiFePO4 batteries have been widely adopted worldwide to provide stable backup power for operators. Under the PAYGO model, ONESUN combines “product + financing” to enable affordable electricity access in regions such as Africa and Southeast Asia, promoting true energy inclusivity.

Industrial Off-Grid Solar Generator 5kW 10kW

So why do more and more B2B clients choose ONESUN as their trusted partner? The answer is simple: stable products, clear tiered offerings, and flexible OEM/ODM capability. ONESUN not only provides standardized products but also offers deep customization based on market requirements—from cell selection to system integration, from design aesthetics to software features—ensuring full-chain support.

Industrial Off-Grid Solar Generator 5kW 10kW

Most importantly, ONESUN maintains transparent quality control in its battery cells. For instance, the SMA series uses Grade A cells with a cycle life of 6,000–8,000 cycles, while the ECO series clearly positions itself with Grade B cells rated for 3,000–3,500 cycles, offering a more competitive price. This clear product differentiation allows customers to make rational choices based on project needs rather than being misled by “inflated specs” often seen in the market.

In summary, the SSIO series is more than just a product—it is a concentrated expression of ONESUN’s technological strength in industrial-grade energy storage. From impact resistance and environmental adaptability to power quality and system safety, every design detail reflects real-world application demands. As global energy transformation advances, choosing a reliable energy storage partner becomes even more critical than choosing a single product. And ONESUN, with its mature technological ecosystem and worldwide service capability, is becoming the preferred choice for enterprises on the path toward energy transition.

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