
Description
The 21700Li Ion Cell is a cylindrical lithium-ion rechargeable battery produced using wound electrodes with a spiral cross-section. Its number 21700 refers to the dimensions of the battery, which is 21 mm in diameter and 70 mm in length. It features large capacity and high density, with a nominal voltage of 3.6/3.7V and a capacity range of 4,800 to 5,000 mAh. This allows it to store large amounts of electricity, effectively extending runtime and increasing the possibility of fast charging, powering your laptop, power tools and electric cars when necessary.
Features
1. High density: Due to the large number of active materials, this 21700Li Ion Cell has an energy density of approximately 300Wh/kg, which can provide powerful and long-lasting energy for various devices and applications.
2. Lightweight: The battery has a diameter of 21mm and a length of 70mm. After the upgrade, the weight of the battery component is reduced by 10%, so it can be carried in any pocket and is easy to transport and install.
4. Large capacity: This battery has a capacity of 4800mAh to 5000mAh. Its capacity is about 50% higher than that of 18650 lithium battery, and the discharge rate is as high as about 3.75C, ensuring sufficient energy storage for long-term use.
Application
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Electric vehicle (EV)
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Portable electronic products
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Emergency standby power supply


Diameter 21mm
Length 70mm
Weight: about 65g
Rated voltage: 3.6V
Standard capacity: 4800mAh-5000mah



EneSupFar®:Your Trustworthy Other Lithium Ion Battery Supplier
Chaoneng Energy(Yiwu)Co., Ltd. is a green energy enterprise integrating independent research and development, production and sales of lithium-ion battery modules. After years of development, we are at the top of the industry in terms of product performance, technological innovation and all-round services. We have multiple lithium battery pack production lines equipped with advanced production equipment and assembly equipment. Our team has a large number of experienced personnel who can ensure the high quality of the products.
Rich Experience:The company was established in 2022, but started export business in 2005. So far, our technical team has been developing lithium batteries for more than 10 years, while the sales department has been exporting batteries for more than 15 years and lithium batteries for more than 6 years.
Broad Market:Our products have been exported to many countries and have won widespread praise and trust from customers. We also have in-depth cooperation with large lithium battery companies such as CATL, BYD, and Guoxuan High-Tech.
Wide Range Of Products:The company mainly produces lithium-ion batteries, including iron phosphate (LiFePO4/LFP) batteries, ternary lithium-ion battery packs (NMC) and LTO lithium batteries. We can also produce lithium batteries in various configurations on demand to provide customers with personalized choices.
Leading Service:We complete the R&D, production, marketing, sales and technical support processes independently. Whether you want to buy batteries of any shape or material, or battery packs of different structures and sizes, you just need to send your requirements via email and we can customize the product for you, and we also accept OEM customization.
Why choose us?
- Our Cylinder Battery products are made from high-quality materials sourced from reliable suppliers.
- Welcome new and old customers to visit and negotiate business, we will continue to work hard to provide you with the best quality products and services.
- We strive to continuously improve our Cylinder Battery products through research and development.
- We firmly believe that efficiency depends on quality, quality depends on technology, technology depends on talent, and talent depends on education.
- Our Cylinder Battery products are backed by a warranty to provide peace of mind to our customers.
- Our company establishes a unique production process and operation process in line with the actual situation of the company.
- We offer technical support and training to help our customers correctly use and maintain our Cylinder Battery products.
- We hope to establish a more rigorous quality system in design, production and service to meet the needs of different markets.
- Our factory is a major supplier and manufacturer of Cylinder Battery products at competitive prices.
- We use the most advanced methods to manufacture 21700Li Ion Cell, our company will always focus on continuous innovation, intelligent manufacturing and intimate service to achieve shared and win-win development with our customers.
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