Product Overview
The TYPE-C 21700 Li-ion Battery (Model URA2142) is a high-performance rechargeable cell featuring a built-in
Type-C charging interface. With a rated capacity of 4200mAh (15.1Wh) and a nominal voltage of 3.6V, this battery offers reliable power for a wide range of portable
electronic devices. It is engineered for efficiency, safety, and
long-term durability, making it a dependable energy solution for
everyday and professional applications.
Main Features & Benefits
Integrated Type-C Charging – Directly charge the cell without a dedicated charger.
Large Power Reserve – 4200mAh capacity ensures extended operating time.
Consistent Output – Stable 3.6V voltage suitable for sensitive electronics.
Durability & Longevity – Over 500 recharge cycles with minimal capacity fade.
Compact Energy Solution – Fits perfectly into modern high-drain portable devices.
Application Scenarios
High-lumen flashlights
Head-mounted lights for outdoor exploration
Bicycle lighting systems
Emergency and safety lighting
Portable cooling fans
Wireless microphones and sound equipment
Scientific instruments and precision apparatus
Factory Support & Services
Tailored Customization – Voltage, capacity, branding, and packaging options.
Professional R&D Team – Over 60 engineers with strong design capability.
End-to-End Support – Technical consultation before and after purchase.
Global Logistics Advantage – Multiple warehouses for fast regional supply.
Rigorous Quality Standards – Every batch tested for performance and safety.
Packaging & Shipping
Carton or Wooden Case – Depending on shipment size and destination.
Flexible Transport Options – Ocean freight, air cargo, or courier services.
Custom Branding Packages – Retail-ready or industrial packaging available.
Frequently Asked Questions
Q1: What is the charging interface of this battery?
It uses a built-in USB Type-C port for easy and universal charging.
Q2: Can this battery power high-drain devices?
Yes, it is designed for equipment like flashlights, headlamps, and
instruments.
Q3: How many charge cycles can it support?
Generally more than 500 full charge-discharge cycles under proper
use.
Q4: Does Yunfan provide OEM options?
Yes, logo printing, color, and specifications can be customized.
Q5: Is international shipping supported?
Yes, it complies with UN38.3 and MSDS for safe global transport.
