The Wave of Customization in the PV Energy Storage Industry: ONESUN Creates Tailor-Made Energy Storage Systems and Battery PACK Solutions
As the global energy structure continues to accelerate its transformation, “customization” has become the new keyword in the photovoltaic (PV) energy storage industry. In the past, companies focused on large-scale and standardized production. But today, as the differences between household, commercial, and industrial energy storage demands continue to expand, tailor-made energy storage systems are becoming the mainstream trend.
ONESUN with years of R&D and manufacturing experience in the PV energy storage field, has evolved from a “product manufacturer” to an “energy customization solution provider.” The company offers a full range of services including customized energy storage systems, lithium battery PACK customization, and modular storage development for clients around the world.
1. From Standard Products to “Custom Solutions”: ONESUN’s Tailored Energy Storage Capability
“Customized energy storage systems” are far more than simply adjusting the shell design or increasing capacity. ONESUN’s approach covers every layer from battery cells, BMS logic, inverter control, structure design to interface protocols.
ONESUN’s customized all-in-one energy storage systems are the perfect example of this concept. For different application scenarios, ONESUN provides flexible systems ranging from 1kW to 30kW, covering everything from household energy storage customization to commercial and industrial energy storage system development, precisely adapting to local grid conditions, user habits, and load types.
In the ODM design phase, ONESUN’s engineering team customizes the BMS algorithm, charge/discharge curve, and thermal management system according to each client’s technical drawings—ensuring high efficiency and stability under diverse temperature and grid fluctuation environments.
During the OEM production phase, the company’s automated production lines and strict quality management system guarantee reliability through full-process digital traceability—from cell testing to final system aging tests.
This means clients receive not just a “customized product” in appearance and function, but a fully optimized, reliable, and performance-matched system-level solution.
2. Modular Energy Storage System Customization: Flexible, Scalable Power Architecture
In large-scale commercial and industrial projects, ONESUN has launched modular energy storage customization services. Unlike traditional fixed-capacity systems, modular solutions can be flexibly combined according to project power requirements, installation area, and site conditions—much like assembling building blocks.
For example, in PV + storage hybrid projects, ONESUN’s modular units can be expanded from 10kWh to 500kWh, supporting both parallel operation and remote monitoring. Whether for factory peak-load shifting or telecom base station backup, every solution can be custom-built to exact requirements.
As one overseas customer commented on ONESUN’s website:
> “ONESUN isn’t just selling products—it’s designing power solutions.”
This transition from product provider to solution designer has helped ONESUN stand out in global markets.
3. Lithium Battery PACK Customization: Designed for Diverse Shapes and Voltage Requirements
At the core of every energy storage system lies the battery module, and ONESUN possesses advanced custom lithium battery PACK capabilities.
Depending on client applications—such as RVs, marine systems, AGVs, or commercial energy storage cabinets—ONESUN can design bespoke lithium battery modules, supporting various parallel/series structures and casing dimensions.
For high-end clients, ONESUN also offers custom-shaped (non-standard) lithium batteries and high-voltage battery pack customization, meeting the needs of devices requiring unique shapes or high energy density.
In its OEM/ODM production services, ONESUN undertakes energy storage PACK outsourcing and power battery PACK customization for global clients. Whether for 200V industrial control systems or 700V new energy devices, ONESUN handles the entire process—from cell matching and BMS programming to PACK assembly—ensuring all products comply with UL, CE, and UN38.3 international safety standards.
4. The Foundation of ONESUN Customization: Technology + Manufacturing + Delivery
ONESUN’s strong customization capability comes from three key systems:
1. Technical R&D Team – Over 20 experienced engineers specializing in battery system design and ODM customization;
2. Manufacturing Capacity – Two advanced smart factories in Huizhou and Dongguan with daily output exceeding 200 storage modules;
3. Testing and Validation – Full-cycle reliability verification including aging, vibration, and high/low temperature tests, ensuring long-term stability for every custom system.
Thanks to these advantages, ONESUN’s customized storage products have been successfully delivered to Europe, Africa, the Middle East, and Southeast Asia, serving various applications such as residential storage systems, solar power stations, and mobile power plants.
5. Conclusion: Customization Makes Energy Storage Truly “Understand You”
As the new energy industry advances toward higher-quality development, standardized mass production is no longer the endgame—intelligent customization is.
With the philosophy of “Technology as the backbone, manufacturing as the soul,” ONESUN continues to lead in PV energy storage customization, offering tailor-made all-in-one systems, lithium battery PACK OEM/ODM services, and modular industrial storage solutions to help global users build their own smart energy ecosystems.
As one online reviewer aptly put it:
> “Other brands make you adapt to their systems, but ONESUN makes the system adapt to you.”
That is the true meaning of ONESUN’s customization—finding the perfect energy answer for every unique power need.
Article Source: China ONESUN' Lithium battery manufacturer
Featured Recommendations： all in one solar system,Solar Power Station,LiFePO4 Solar Battery,
Related Products
All-in-one solar Energy Storage System 5KW With Lithium Ion Battery 51.2V
Wall-mounted Battery
Rack-mounted Battery
Floor-standing Battery
High-voltage Rack-mounted Battery
High-voltage Stacked Battery
Lead acid Replacement Battery
20ft/40ft Container ESS | 3.4MWh Capacity, 500kW Power
50KW 100KWH Industrial Energy Storage System
