Ironbull Series 5–10kW Solar Energy Storage System | OEM & ODM Battery Solutions By ONESUN

World-Renowned Battery Manufacturer ONESUN

Delivering the Best OEM & ODM Battery Pack Solutions for Global Customers

As the global energy transition accelerates and off-grid power demand continues to rise, stable, safe, and long-lasting energy storage systems have become essential for residential, commercial, and industrial users. As a world-renowned battery brand manufacturer, ONESUN leverages years of expertise in lithium battery and energy storage technology to provide highly reliable OEM and ODM battery pack solutions for customers worldwide. These solutions are widely applied in off-grid power stations, distributed energy systems, and small- to medium-scale commercial and industrial applications.

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Among ONESUN's flagship offerings, the SSIO Series Integrated Solar Energy Storage System stands out as a representative solution. This series seamlessly integrates the inverter, controller, and battery system into a single unit, forming an independent small solar power station. Supporting both wall-mounted and ground installations, the SSIO Series offers flexible deployment and efficient installation, making it an ideal choice for large residential properties as well as small commercial and industrial energy needs.

One of the core strengths of the SSIO Series lies in its line-frequency isolation transformer design. This structure significantly enhances the system's tolerance to grid fluctuations, voltage surges, and high inrush currents. Even under frequent start-stop operations and heavy load conditions, the system maintains stable power output, effectively extending the overall service life. For applications that require driving inductive loads such as motors and compressors, its strong instantaneous current capability is especially critical.

Technical Data - SSI Inverter Series

Model	SSI-3kW/5.12kWh	SSI-5kW/10kWh	SSI-10kW/20kWh
AC Input Parameters
AC Input Voltage	220VAC	220VAC	220VAC
AC Input Voltage Range	154~264±3VAC (Normal) 185~264±3VAC (UPS)
Max AC Charging Current	63A	63A	104A
Input Frequency	50/60Hz±5%
PV Parameters
PV Max Power	1600W	6400W	6400W
PV Working Method	MPPT
PV Input Voltage Range	30~150V	60~150V	60~150V
PV Max Open Voltage	150V	150V	150V
PV Max Input Current	60A	120A	120A
Battery Data
Battery Type	LiFePO4
Battery Voltage	25.6VDC	51.2V DC	51.2V DC
Battery Capacity	200Ah	200Ah	400Ah
Battery Energy	5.12kWh	10.24kWh	20.48kWh
Continued Discharge Current	200A	200A	400A
MAX Discharge Current	300A	300A	600A
AC Output Parameters
Rated Output Power	3500VA/3000W	6000VA/5000W	12000VA/10000W
Output Voltage	220VAC±10%
Output Frequency	50Hz/60Hz±1%
Output Waveform	Sine Wave
Conversion Time	≤10ms (UPS) / ≤20ms (INV)
Overload Capacity	≤1.3 Rated 30S
Impact Resistance	≤3 Rated 10mS
Standard Parameters
Protection Function	Input over/under protection, battery overcharge/overdischarge protection, battery over-temperature protection, overload protection, short circuit protection, and over/under voltage protection.
Display	LED
Communication	RS232/RS485/BT
Cooling	Forced Air Cooling
Operating Temperature	Charging: 0℃~50℃ / Discharging: -15℃~60℃
Protection level	IP20
Storage Temperature	-15℃~45℃
Relative Humidity	5%~90%RH (Non-condensing)
Standard	EN-IEC60335-1/LEN-IEC60335-2-29/IEC 62109-1, EN-IEC 62133

In addition, the built-in isolation transformer effectively eliminates DC components and suppresses common-mode noise, greatly improving electrical safety and ensuring better compatibility with generators and other power sources. Acting as a natural power filter, the transformer delivers cleaner output power and maintains exceptional stability even in environments with high electromagnetic interference.

Building on these technical advantages, ONESUN offers highly flexible OEM and ODM customization services. From battery cell selection and module structural design to BMS configuration, enclosure design, communication protocols, and full system integration, ONESUN tailors solutions according to each customer's market positioning and application scenarios. This end-to-end customization capability enables partners to quickly develop competitive, market-ready energy storage products under their own brands.

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With proven performance in harsh operating environments such as high temperatures, high humidity, and unstable voltage and frequency conditions, ONESUN's battery and energy storage systems have been widely deployed across emerging markets including Africa, Southeast Asia, and the Middle East, earning long-term trust from global customers.

Looking ahead, ONESUN will continue to drive innovation through advanced technology and manufacturing excellence. By working closely with partners around the world, the company remains committed to accelerating the large-scale adoption of clean energy and delivering more reliable and efficient energy storage solutions for a sustainable future.

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