In today's rapidly developing global new energy and energy storage market, battery pack OEM (Original Equipment Manufacturer) has become a crucial bridge connecting technological innovation and industrial applications. Amidst this transformative wave, ONESUN (OneSun Technology), a renowned international battery manufacturer, is becoming the preferred partner for global customers seeking optimal battery pack solutions, thanks to its leading technological strength, global service capabilities, and highly flexible customization solutions.
I. From "Component Manufacturing" to "System Solutions": ONESUN's Value Advancement
Battery packs are simply components supplied, and OEM services are limited to standardized product manufacturing. However, with the increasing diversification of application scenarios, from mobile power devices and clean energy storage systems to industrial-grade energy management platforms, customer needs have far exceeded the scope of standard products.
ONESUN deeply understands this trend, transforming from a traditional battery manufacturer into an international enterprise providing one-stop battery pack solutions. In the fields of energy storage, portable power supplies, and electric vehicle power, its battery pack products not only possess hardware advantages such as high quality, long lifespan, and safety and stability, but also integrate value-added services such as intelligent BMS (Battery Management System), thermal management system, modular assembly, and system-level optimization design. As an OEM supplier, ONESUN's strength lies in its deep understanding of customer needs and its ability to provide meticulous customization. Whether it's voltage, capacity, size, or the environmental resistance design and interface compatibility of battery packs, everything can be tailored to the customer's specific application scenario. For customers requiring non-standard designs, its engineering team can provide integrated services from battery design, engineering evaluation, functional verification to mass production, transforming OEM manufacturing from simple production to "solving core power challenges for customers."
| Parameter | Symbol / Abbreviation | Description | Typical Units | Typical Values / Range |
|---|---|---|---|---|
| Nominal Voltage | Vnom | Average voltage during discharge at standard conditions | Volts (V) | 3.6V (Li-ion), 1.2V (NiMH), 3.2V (LiFePO4) |
| Capacity | C, Ah | Total electric charge that can be stored, measured in ampere-hours | Ampere-hours (Ah) | 1Ah - 500Ah (cell dependent) |
| Energy | E, Wh | Total energy stored (Capacity × Voltage) | Watt-hours (Wh) | 10Wh - 100kWh (pack dependent) |
| Maximum Continuous Discharge Current | Id-max | Maximum current that can be continuously drawn without damaging the battery | Amperes (A) | 1C - 10C (chemistry dependent) |
| Maximum Peak Discharge Current | Id-peak | Maximum short-term discharge current (typically 10-30 seconds) | Amperes (A) | 2× - 5× continuous current |
| Charge Voltage | Vchg | Maximum voltage applied during charging | Volts (V) | 4.2V/cell (Li-ion), 3.65V/cell (LiFePO4) |
| Cut-off Voltage | Vcut-off | Minimum voltage below which discharge should be stopped | Volts (V) | 2.5V - 3.0V/cell (Li-ion dependent) |
| Internal Resistance | Ri, IR | DC or AC impedance of the battery pack | Milliohms (mΩ) | 10 - 200 mΩ (pack dependent) |
| Cycle Life | N | Number of charge/discharge cycles before capacity drops to 80% of initial | Cycles | 500 - 5000 cycles (chemistry dependent) |
| Dimensions (L×W×H) | L, W, H | External pack dimensions including casing | Millimeters (mm) | Pack specific, tolerance: ±0.5mm |
| Weight | m | Total pack mass including all components | Kilograms (kg) | 0.1kg - 500kg (capacity dependent) |
| Energy Density (Gravimetric) | Ed | Energy per unit mass (Wh/kg) | Wh/kg | 100 - 300 Wh/kg (chemistry dependent) |
| Energy Density (Volumetric) | Ev | Energy per unit volume (Wh/L) | Wh/L | 200 - 700 Wh/L (pack design dependent) |
| Enclosure Protection Rating | IP Rating | Ingress Protection rating per IEC 60529 | IPXX | IP54, IP65, IP67 (application dependent) |
| Vibration Resistance | - | Ability to withstand specified vibration profiles | g RMS | 5-15g (application dependent) |
| Shock Resistance | - | Ability to withstand mechanical shock | g | 50-100g, 2-6ms duration |
| Operating Temperature (Charge) | Tchg | Ambient temperature range for safe charging | °C | 0°C to 45°C (typical Li-ion) |
| Operating Temperature (Discharge) | Tdischg | Ambient temperature range for safe discharging | °C | -20°C to 60°C (typical Li-ion) |
| Storage Temperature | Tstorage | Recommended temperature range for long-term storage | °C | 15°C to 25°C (optimal), -40°C to 60°C (acceptable) |
| Thermal Runaway Onset | Trunaway | Temperature at which exothermic reactions become self-sustaining | °C | 130°C - 200°C (chemistry dependent) |
| Thermal Management | - | Cooling/heating method employed | - | Passive, Air-cooled, Liquid-cooled, Phase Change Material |
| Overcharge Protection | OVP | Protection against voltage exceeding maximum limit | Volts (V) | 4.25V - 4.35V/cell (Li-ion) |
| Overdischarge Protection | UVP | Protection against voltage dropping below minimum limit | Volts (V) | 2.0V - 2.8V/cell (Li-ion) |
| Overcurrent Protection | OCP | Protection against excessive discharge current | Amperes (A) | Pack specific, typically 1.5× - 3× max continuous |
| Short Circuit Protection | SCP | Protection against direct short circuit conditions | Response time | < 1ms response time |
| Overtemperature Protection | OTP | Protection against excessive temperature | °C | 60°C - 80°C (cell dependent) |
| Cell Balancing | - | Method for equalizing cell voltages | - | Passive, Active, Capacitive, Inductive |
| Communication Interface | - | BMS communication protocol | - | CAN, I2C, SMBus, UART, RS485 |
| Safety Certifications | - | Compliance with safety standards | - | UL, IEC, UN38.3, CE, GB/T |
II. Technological Strength and Global Service: ONESUN's Core Competitiveness
At the R&D level, ONESUN not only boasts a research and development team composed of industry experts but also continuously invests in battery system integration and intelligent BMS design. Leveraging years of accumulated industry experience, ONESUN's battery packs possess advantages such as high safety, long cycle life, high energy density, and high reliability, providing stable and sustainable power support to customers worldwide.
For example, its 72V system battery packs developed for high-voltage applications utilize advanced lithium iron phosphate or ternary lithium battery cells, combined with comprehensive monitoring by an intelligent BMS. This not only improves energy efficiency but also ensures stable output and long lifespan under high load conditions. These products perform particularly well in demanding applications such as electric vehicles and industrial equipment.
Meanwhile, ONESUN's international footprint and global service capabilities also set it apart in the OEM market. To date, its products have been exported to over 70 countries and regions, providing customized battery pack solutions for customers in different markets and ensuring compliance with global safety and performance requirements based on regional regulations and standards.
III. Comprehensive Application Scenarios: The Driving Force Behind Customer Success
ONESUN's OEM battery pack solutions are widely used in multiple industries:
* Residential and Commercial Energy Storage Systems: For residential and commercial energy storage scenarios, ONESUN offers modular, easily expandable energy storage battery packs that can efficiently collaborate with photovoltaic systems to achieve energy self-sufficiency and peak-valley regulation.
* Industrial and Large-Scale Energy Projects: Providing customized high-capacity battery systems for customers with high power demand, such as industrial bases and data centers.
* Mobile Devices and New Energy Vehicles: Developing high-power output and fast-charging/discharging battery pack solutions for electric bicycles, special vehicles, and more.
These real-world application examples not only demonstrate ONESUN's strong capabilities in OEM customization but also prove the reliability and efficiency of its solutions in various complex environments.
IV. Conclusion: Finding the Most Suitable Battery Pack Solution for Every Customer
Faced with increasingly diverse application needs and technological challenges, choosing a capable and experienced OEM partner is crucial. ONESUN, through its comprehensive advantages in technological innovation, quality control, global service, and responsiveness to customer customization needs, is leading battery pack OEM services to a new standard.
Whether customers prioritize high efficiency or ultimate safety, ONESUN can translate its expertise into practical battery pack solutions, truly achieving "providing customers with the best battery pack OEM solutions."
Article Source: Lithium battery manufacturer - ONESUN China
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