LiFePO4 Battery Pack Manufacturer | UN38.3 & CE Certified EV Batteries-Why Choose OneSun?
Dec 29, 2025
Against the backdrop of global energy transformation and the rapid development of new energy vehicles, manufacturers of high-performance, safe, and reliable lithium iron phosphate (LiFePO₄) battery packs are becoming a core force in industry competition. As one of the world's leading battery brand manufacturers, ONESUN Technology (Shenzhen) Ltd. (hereinafter referred to as ONESUN) maintains a leading position in the industry with its superior product quality, stringent safety certifications (such as UN38.3, CE, etc.), and global service network. ONESUN provides global customers with the best solutions for OEM and ODM battery pack wholesale and is the trusted first choice for partners in the domestic and international EV, power system, and energy storage fields.
I. A Strategic Manufacturer with a Global Vision: ONESUN's Industry Positioning
Founded in 2014 and headquartered in Shenzhen, China, ONESUN is a high-tech enterprise specializing in new energy batteries, energy storage systems, and complete energy solutions. Its business covers a full range of products including LiFePO₄ battery packs, electric vehicle batteries, energy storage systems, and inverters. With over a decade of deep industry experience and an international presence, ONESUN has exported its products to more than 70 countries and regions, earning widespread trust and praise from customers worldwide.
| Parameter | Typical Value / Range | Description / Notes |
|---|---|---|
| Nominal Voltage | 12.8V (3.2V per cell) | Standard voltage for a 4S configuration (4 cells in series) |
| Charge Voltage | 14.2V - 14.6V (3.55V-3.65V per cell) | Maximum charging voltage for CC/CV charging method |
| Cut-off Voltage | 10.0V - 10.8V (2.5V-2.7V per cell) | Minimum discharge voltage to prevent over-discharge |
| Energy Density | 90 - 160 Wh/kg | Lower than NMC but offers better safety and cycle life |
| Cycle Life | 2000 - 7000 cycles | At 80% Depth of Discharge (DoD) |
| Operating Temperature | Charge: 0°C to 45°C Discharge: -20°C to 60°C |
Wider temperature range compared to other lithium chemistries |
| Self-Discharge Rate | 3 - 5% per month | Much lower than lead-acid batteries (~30% per month) |
| Charge Rate (C-rate) | 0.5C - 1C (standard) Up to 3C (fast charging) |
1C means charging to full capacity in 1 hour |
| Discharge Rate (C-rate) | 1C (continuous) Up to 3C (peak) |
Higher C-rates available with specific cell designs |
| Chemistry | LiFePO4 / LFP | Cathode: LiFePO4, Anode: Graphite |
| Thermal Runaway | > 270°C | Much higher than NMC (~210°C) or NCA (~150°C) |
| Memory Effect | None | No need for full discharge cycles |
| Maintenance | Minimal | No watering or equalization charging required |
In the face of fierce international competition, ONESUN not only provides standardized products but also offers customized OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) services based on individual customer needs. This enables global partners to quickly establish a market presence and enhance product competitiveness according to their brand strategies and product positioning.
II. Leading Technology and Rigorous Certification: Creating Industry Benchmark Products
Quality and safety are the foundation of the battery manufacturing industry. All ONESUN LiFePO₄ battery packs have passed multiple authoritative international certifications, including UN38.3 (transport safety certification) and CE (EU safety and performance certification). This means that its products not only meet global regulatory requirements but also meet the high safety performance standards required for applications such as electric vehicles and energy storage systems.
LiFePO₄ batteries are renowned for their high safety, long lifespan, strong thermal stability, and resistance to thermal runaway. ONESUN further amplifies these advantages by employing Class A cells and a self-developed intelligent battery management system (BMS), achieving industry-leading levels in reliability, performance stability, and cycle life, enabling its battery packs to operate stably and continuously in harsh environments.
III. Comprehensive Solutions: Meeting the Needs of Multiple Applications
ONESUN's product range is extremely broad, extending beyond electric vehicle power batteries to include, but not limited to:
* Electric Vehicle and Power System Battery Packs: Suitable for various vehicle types such as electric motorcycles, electric bicycles, and electric golf carts;
* Energy Storage System Battery Packs: Home energy storage, grid-side systems, and commercial and industrial energy storage solutions;
* Customized Battery Pack Designs: Deep customization is available based on customer project requirements, including capacity, size, shape, interfaces, and communication protocols;
* High-Voltage Battery Packs: Such as 72V or higher voltage designs to meet the needs of high-power applications.
With a comprehensive product line and flexible customization services, ONESUN not only provides OEM customers with ready-made, high-quality battery packs, but also offers ODM customers a one-stop service covering the entire process from product design, battery selection, BMS integration to final production, truly helping customers enhance their branding and market competitiveness.
IV. Global Wholesale Advantages: Efficient Supply Chain and High-Quality Service
As an international manufacturer, ONESUN boasts an annual production capacity of over 768MW, has completed over 3GW of successful projects, and enjoys a high customer satisfaction rate of over 90%, demonstrating its strong supply chain management and large-scale production capabilities. With a global export network and a professional sales team, ONESUN can quickly respond to global customer order demands and provide reliable logistics, after-sales support, and customized consulting services.
For global wholesalers, battery brand OEM partners, electric vehicle manufacturers, or energy storage system integrators, partnering with ONESUN means leveraging high-quality products, flexible customization, and cost-effectiveness to quickly gain customer reputation and increase market share in different markets.
In the global wave of new energy and electrification transformation, choosing a LiFePO₄ battery manufacturer with strong technical capabilities, complete product certifications, and a comprehensive service system is crucial for the success of every brand and project. ONESUN, as an internationally renowned battery manufacturer, has established an outstanding brand image in the international market with its global vision, reliable quality, leading technology, and flexible OEM/ODM solutions, making it an ideal choice for companies seeking wholesale partners.
If you are looking for world-class battery supply solutions, ONESUN's comprehensive product range and customized services will undoubtedly become a core force helping you win in the market.
Article Source: Lithium battery manufacturer - ONESUN China
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