In the context of increasingly diversified energy storage needs—whether for large-scale industrial and commercial energy storage projects, microgrid systems, or high-capacity energy storage requirements in premium households—traditional fixed-capacity energy storage batteries often face the dilemma of “insufficient capacity” or “over-configuration”. The High-Voltage Stackable LiFePO4 Battery launched by SUNYA-EES takes “modular stacking” as its core innovation, combining the safety attributes of lithium iron phosphate with the high efficiency of high-voltage systems. It provides a flexibly adaptable, safe, and reliable solution for energy storage scenarios of various scales, redefining the expandability and practicality of energy storage equipment.
From the perspective of core performance, this high-voltage stackable battery first achieves a breakthrough in the “flexible combination of voltage and capacity”. Its single-module design supports high-voltage output, with the voltage of a single battery unit covering [specific high-voltage range, e.g., 300V-500V], and the capacity available in basic specifications such as [20kWh/30kWh/50kWh] according to requirements. More importantly, it supports flexible stacking of multiple modules—up to [X] modules can be connected in series or parallel, theoretically enabling the construction of ultra-large-capacity energy storage systems ranging from tens of kWh to MWh levels. This design completely breaks the “fixed capacity” limitation of traditional energy storage batteries: industrial and commercial users can flexibly add modules according to the peak electricity demand during the production season, while household users can start with a basic capacity and gradually expand as new energy power generation equipment (such as high-power solar panels) is upgraded. This truly realizes “on-demand configuration and dynamic adjustment”, avoiding resource waste and cost idleness.
Safety, as a core advantage of LiFePO4 batteries, is further enhanced in this product by SUNYA-EES. The battery adopts grade-A LiFePO4 cells, whose thermal runaway temperature is much higher than that of ternary lithium batteries, fundamentally reducing the risks of overheating and fire. At the same time, each stacked module is equipped with an independent fire-resistant shell and heat insulation layer; even if an abnormality occurs in a single module, risks can be effectively isolated to prevent accident spread, meeting the strict requirements for “safety redundancy” in large-scale energy storage power stations. In addition, the battery integrates a new-generation intelligent BMS (Battery Management System). Beyond conventional protection functions such as overcharge, over-discharge, overcurrent, and short-circuit protection, it adds a “inter-module balance control” function—during multi-module stacking, the BMS can dynamically adjust the charging and discharging status of each module, avoiding capacity loss caused by performance differences between modules. This not only ensures system safety but also extends the overall service life. Tests show that the battery can operate stably in a wide temperature range from -20℃ to 60℃, with a cycle life of over 8000 times. Calculated based on 1.5 charge-discharge cycles per day in industrial and commercial scenarios, its service life can exceed 15 years, significantly reducing long-term operation and maintenance costs.
In terms of high efficiency and compatibility, this high-voltage stackable battery also performs remarkably. The high-voltage design reduces the power transmission loss of the battery system by 20%-30% compared with low-voltage systems, making it particularly suitable for large-scale energy storage projects requiring long-distance power transmission—such as distributed energy storage power stations in industrial parks and supporting energy storage facilities for new energy. It can more efficiently achieve “peak-valley arbitrage” and “emergency power supply”. Meanwhile, the battery supports seamless connection with mainstream inverters and energy storage converters (PCS) on the market, compatible with equipment of brands such as Growatt, Solis, and Fronius. It can be integrated into existing energy systems without additional modifications, lowering the difficulty of project implementation. Notably, the battery’s “plug-and-stack” design simplifies the installation process: modules are connected via standardized interfaces, eliminating the need for complex wiring and debugging. Two to three workers can complete the assembly of multiple modules, greatly shortening the construction period—for example, a 100kWh energy storage system requires 1-2 days of installation with traditional fixed-capacity batteries, while SUNYA-EES stackable batteries can be installed in only 4-6 hours, improving project delivery efficiency.
In terms of application scenarios, this battery has an extremely wide range of adaptability, worthy of being called an “all-scenario energy storage tool”. In the industrial and commercial field, it can be used in energy storage systems of factories, shopping malls, and data centers: storing off-peak grid electricity or self-generated photovoltaic power during the day and releasing it at night or during peak electricity demand periods to reduce electricity costs; meanwhile, it serves as an emergency power source in case of grid outages, ensuring the continuous operation of key equipment such as production lines and servers and reducing downtime losses. In the new energy supporting field, it can be used in conjunction with wind and solar power stations to alleviate the “volatility” and “intermittency” of new energy power generation, smooth power output, and improve new energy consumption rates. In premium household and villa scenarios, multi-module stacking can meet the power needs of high-power household appliances (such as central air conditioners and swimming pool equipment) and the entire house’s electricity supply. Combined with solar panels, it realizes “energy self-sufficiency” and can even serve as a backup power source in extreme weather to ensure basic household electricity use. Additionally, it can be applied in microgrid systems to provide stable power support for remote areas, islands, and other regions with weak grid coverage, contributing to energy accessibility.
As a professional brand deeply engaged in the energy storage field, SUNYA-EES provides comprehensive quality assurance and service support for this high-voltage stackable battery. The product has obtained multiple international certifications such as TUV, UL, CE, and RoHs, meeting the quality standards of mainstream global markets. To meet different customer needs, it offers OEM/ODM customization services, allowing adjustments to module capacity, appearance design, interface specifications, and even the development of exclusive monitoring software according to project requirements. In terms of delivery and after-sales service, the sample preparation cycle takes only 5 days, and bulk orders can be delivered within 15-30 days depending on the scale; meanwhile, 7×24-hour technical support is provided, with professional engineers offering remote guidance during installation. The after-sales service promises a 5-year warranty, and key components can be extended to an 8-year warranty, ensuring customers have no worries.
The launch of SUNYA-EES High-Voltage Stackable LiFePO4 Battery is not only an innovative breakthrough in the “flexibility” of energy storage equipment but also an in-depth adaptation to energy storage needs in different scenarios. It not only solves the pain points of “fixed capacity and difficult expansion” of traditional energy storage batteries but also provides better energy storage solutions for industrial and commercial, new energy, household, and other fields with its advantages of high-voltage efficiency, safety, and durability. In the future, with the continuous development of the energy storage market, this product is expected to become the first choice for more large-scale energy storage projects, contributing to the global energy transition and the achievement of “dual carbon” goals.
Post time: Sep-20-2025
