High-Capacity TYPE-C Duplex 21700 Li-ion Battery Rechargeable USB-C Lithium Cell for Flashlight Outdoor & Portable Devices
Price:
call for pricing
MOQ:
1000
Delivery Time:
5-8 working days
Brand:
Yunfan
Product Description
High-Capacity TYPE-C Duplex 21700 Li-ion Battery Rechargeable USB-C Lithium Cell for Flashlight Outdoor & Portable Devices
The TYPE-C Duplex 21700 Li-ion battery is a high-capacity rechargeable battery with a built-in USB Type-C duplex port, enabling both charging and discharging without the need for an external charger. Designed in the 21700 cylindrical format, it combines compact size, strong output power, and convenient plug-and-play operation. This smart battery solution is ideal for modern portable electronics, outdoor gear, and emergency backup power.
Key Advantages
- Dual Function Port – Type-C duplex interface for both charging and discharging.
- High Energy Density – Longer runtime compared to 18650 batteries.
- Convenient Charging – Direct USB-C input eliminates special chargers.
- Durable Performance – Long cycle life with stable voltage output.
- Portable & Versatile – Compact design fits a wide range of devices.
Applications
Flashlights and headlamps
Outdoor camping equipment
Power banks and mini fans
Wireless microphones and speakers
Emergency backup power for electronics
Factory Support & Services
OEM/ODM Customization – Capacity, voltage, and branding available.
Engineering Expertise – 13+ years of battery R&D and production.
24/7 Technical Support – Professional after-sales service worldwide.
Fast Delivery – Local warehouses and flexible shipping solutions.
Strict Quality Control – Every unit tested before shipment.
Packaging & Shipping
Packaging Options: Standard paper cartons or reinforced wooden boxes.
Shipping Methods: Sea freight, air freight, or express delivery.
Custom Packaging: Available upon request for branding or retail display.
FAQ
Q1: Can I charge the battery with a normal USB-C cable?
Yes, it supports standard USB-C cables for charging.
Q2: Does it need a special charger?
No, the duplex Type-C port allows direct charging without an external charger.
Q3: What is the typical cycle life?
Over 500+ cycles with proper use.
Q4: Can it be customized with my logo?
Yes, Yunfan Factory provides OEM logo and capacity customization.
Q5: Is it safe for international shipping?
Yes, it complies with UN38.3 and MSDS standards for safe transport.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Yunfan Power Technology Co., Ltd.
Location
Room 506, Building B12, Yantian Industrial Zone, Yintian Community, Xixiang Street, Bao 'an District, Shenzhen，China
Contact Person
Chen