Understanding Dual 21700 Battery Portable Fans
Dual 21700 battery portable fans are high-performance cooling devices that utilize two 21700 lithium-ion cells to deliver extended runtime and robust power output. These fans are designed for users who require reliable and long-lasting airflow in various environments. The 21700 battery type is favored for its superior energy density and longer lifespan compared to traditional 18650 batteries, making it an ideal choice for high-demand applications.
Key Specifications of an 8000 mAh Portable Fan
When evaluating an 8000 mAh portable fan with dual 21700 batteries, several specifications are critical to consider:
- Battery Capacity: The 8000 mAh capacity is typically achieved using two 4000 mAh 21700 cells, balancing size and performance effectively.
- Recharge Time: These fans generally require between 3 to 4 hours to fully recharge, depending on the charger specifications and the efficiency of the battery management system (BMS).
- Fan Speed Settings: Most models offer multiple speed settings, such as low, medium, and high, allowing users to adjust the airflow according to their needs.
- Airflow Rate: The airflow rate is typically measured in cubic feet per minute (CFM) or cubic meters per hour (m³/h). Higher CFM values indicate stronger airflow.
- Build Materials: Durable and lightweight materials, such as high-grade ABS plastic and aircraft-grade aluminum, are commonly used to ensure the fan is both sturdy and portable.
Factory Production and Quality Standards
XMT Global (Xinmeili Technology), an OEM/ODM manufacturer based in Dongguan, Guangdong, China, specializes in the production of high-quality portable fans. With a monthly capacity exceeding 150,000 units and a state-of-the-art facility spanning 3,000 square meters, the company serves over 30 export markets. The production process adheres to stringent quality standards, ensuring each fan meets international safety and performance requirements.
Key certifications held by XMT Global include CE, RoHS, FCC, UN38.3, UKCA, CCC, PSE, and KCC, demonstrating compliance with global regulations and standards. These certifications are crucial for importers and brand owners to ensure their products are legally compliant and safe for consumers.
OEM Sourcing Considerations for Dual 21700 Battery Fans
When sourcing dual 21700 battery portable fans from an OEM/ODM manufacturer, buyers should consider the following factors:
- Minimum Order Quantity (MOQ): The typical MOQ for these fans is 500 units, which allows for cost-effective production and customization.
- Lead Time: The standard lead time is 15 days, assuming standard specifications and order sizes. Buyers should confirm with the supplier regarding any specific conditions or customization requirements.
- Customization Options: Buyers should inquire about customization options, such as branding, color schemes, and additional features, to align the product with their brand identity.
- Quality Control: Understanding the manufacturer's quality control processes and certifications is essential to ensure product reliability and safety.
Common Technical Specifications and Their Implications
Buyers should pay close attention to the following technical specifications when evaluating dual 21700 battery portable fans:
| Battery Type | Capacity | Recharge Time | Typical Lifespan | Common Applications |
|---|---|---|---|---|
| 21700 | 4000 mAh per cell | 3-4 hours | 500+ cycles | Portable cooling devices, high-performance fans |
| 18650 | 2600 mAh per cell | 2-3 hours | 300-500 cycles | Standard portable electronics |
| Lithium Polymer | Varies | 2-5 hours | 300-500 cycles | Lightweight consumer electronics |
The table above highlights the advantages of 21700 batteries, such as higher capacity and longer lifespan, making them ideal for portable fans that require sustained performance.
Frequently Asked Questions
What is the typical lifespan of a dual 21700 battery portable fan?
The typical lifespan of a dual 21700 battery portable fan is over 500 charge cycles. This means the fan can be recharged more than 500 times before the battery capacity starts to degrade significantly.
Can these fans be customized for branding purposes?
Yes, XMT Global offers customization options for branding, including logo printing, color schemes, and packaging design. Buyers should discuss their specific requirements with the supplier.
What certifications are important for importing these fans?
Important certifications include CE, RoHS, FCC, and other regional certifications such as UKCA, CCC, PSE, and KCC. These certifications ensure the product meets safety and environmental standards in different markets.
How long does it take to produce an order of dual 21700 battery portable fans?
The standard lead time for an order of dual 21700 battery portable fans is 15 days, provided that the order is within standard specifications and quantities. For orders requiring customization or larger quantities, the lead time may vary, and buyers should confirm with the supplier.
What is the recommended battery management system (BMS) for these fans?
XMT Global typically integrates a reliable BMS into their fans to ensure optimal battery performance and safety. Buyers should inquire about the specific BMS features, such as overcharge protection, temperature monitoring, and cell balancing, to ensure the fan meets their quality and safety expectations.
Conclusion
Understanding the factory specifications of dual 21700 battery 8000 mAh portable fans is crucial for importers and brand owners to make informed decisions. By considering factors such as battery capacity, recharge time, and quality certifications, buyers can select a product that meets their market needs and ensures customer satisfaction.