Product Description:

The USB 18650 Li-ion battery is a rechargeable lithium-ion battery in the standard 18650 size, commonly used in portable electronic devices. It features a built-in USB port for direct charging, eliminating the need for a separate charger. Known for its high energy density, it provides more power in a compact form, making it ideal for small devices. headlamps, bike lights, emergency lights, mini-fans, and microphones.

Product advantage:

• High Energy Density: The battery offers more power in a compact size, making it ideal for devices where space is limited.

• Long Lifespan: It supports over 800 charge cycles, ensuring extended usage and durability over time.

• Convenient USB Charging: Equipped with a built-in USB port, it simplifies charging, eliminating the need for external chargers.

• Low Self-Discharge Rate: The battery retains its charge for extended periods, making it reliable for emergency or backup power needs.

• Environmentally Friendly: As a lithium-ion battery, it is more sustainable than traditional disposable batteries, offering a longer-lasting power solution.

Applications:

• Flashlights: Powers portable flashlights, providing consistent and bright illumination for outdoor activities, camping, or emergency situations.

• Headlamps: Offers reliable, hands-free lighting for tasks like hiking, cycling, or working in low-light environments.

• Bike Lights: Delivers steady power for bike lights, ensuring visibility and safety during night rides or in dark conditions.

• Emergency Lights: Serves as a dependable energy source for emergency lighting, offering crucial visibility during power outages or crises.

• Mini-Fans: Powers compact, battery-operated fans, providing cooling comfort on the go or in confined spaces.

• Microphones: Supplies consistent energy for wireless microphones, ensuring clear and uninterrupted audio during events, recordings, or performances.

Support and Services:

• Custom Battery Solutions: At Yunfan, we specialize in designing and manufacturing customized lithium battery solutions to meet the specific needs of your projects, whether it's for capacity, voltage, form factor, or unique features.

• 24/7 Customer Support: Our support team is always available, offering round-the-clock assistance to address any inquiries, provide technical guidance, or help with troubleshooting and product support.

• Factory Visits & Consultations: We invite clients to visit our production facility for a hands-on look at our manufacturing process, where our experts will provide detailed consultations to ensure that we meet all project requirements.

• Fast and Reliable Delivery: With multiple local warehouses and efficient logistics, Yunfan ensures rapid delivery, minimizing lead times and keeping your project timeline on track.

• Expert Technical Assistance: Our experienced engineers offer comprehensive technical support, helping you optimize battery performance and integrate them seamlessly into your devices or systems.

Packing and Shipping:

Shipping Methods:

1. Sea Freight: A cost-effective option for shipping large volumes of goods over longer distances, ensuring bulk orders arrive safely and efficiently.

2. Air Freight: Ideal for urgent or time-sensitive shipments, air freight provides faster delivery while balancing cost and speed for medium-sized orders.

3. Express Courier: Fastest delivery method for small, urgent orders, offering quick and reliable service through trusted couriers.

Packaging Options:

1. Wooden Box Packaging: Used for larger or heavier items, wooden boxes offer robust protection during transit, safeguarding products from impact and damage.

2. Carton Box Packaging: A versatile and secure packaging option for standard shipments, offering reliable protection for smaller items while minimizing overall shipping costs.

FAQ:

• What is the typical lifespan of the USB 18650 Li-ion battery?
  The USB 18650 Li-ion battery can typically last for over 800 charge cycles, providing long-term reliability and durability.

• How do I store the USB 18650 Li-ion battery when not in use?
  Store the battery in a cool, dry place, away from direct sunlight or extreme temperatures. Make sure the battery is partially charged (around 40%-60%) for optimal storage.

• Can I use the USB 18650 Li-ion battery in any device?
  The USB 18650 Li-ion battery is compatible with a variety of devices, including flashlights, headlamps, bike lights, emergency lights, mini-fans, and microphones. Always check the device’s specifications for compatibility.

• Is the USB 18650 Li-ion battery rechargeable?
  Yes, the USB 18650 Li-ion battery is rechargeable, offering a long lifespan of more than 800 charge cycles when properly maintained.

• What are the safety precautions I should take when using the USB 18650 Li-ion battery?
  Always use the battery within its recommended voltage and temperature ranges. Avoid short-circuiting, overcharging, or exposing the battery to extreme temperatures to prevent potential damage or safety hazards.

• How do I know if my USB 18650 Li-ion battery needs replacing?
  If the battery no longer holds a charge or has significantly reduced runtime, it may be time to replace it. Also, if you notice any physical damage, such as swelling or leakage, discontinue use immediately.