As we embark on a journey to explore the cutting-edge technology behind Sunpower New Energy‘s 21700 lithium ion battery, we delve into the realm of innovation, performance, and reliability. In this article, we aim to guide you through the intricacies of this exceptional energy storage solution, shedding light on the key features, applications, and the brand’s commitment to excellence.

Introduction to Sunpower New Energy’s 21700 Lithium Ion Battery


At the forefront of the new energy revolution, Sunpower New Energy stands tall as a leading manufacturer of lithium ion batteries, with a particular focus on the revolutionary 21700 li ion cell. Our commitment to creating a national brand and building a powerful global presence is mirrored in the exceptional quality and advanced technology embodied by the 21700 lithium ion battery.


The Superiority of 21700 Lithium Ion Cells: Unraveling the Technology


High-Temperature Performance

One of the standout features of Sunpower 21700 li ion cell is its exceptional performance under high-temperature conditions. With a charging temperature surpassing 45℃ and a discharge temperature exceeding 60℃, these cells remain stable, safe, and reliable even in the harshest environments.


Advanced Battery Technology

Sunpower New Energy prides itself on investing over 122 million RMB in establishing two major R&D centers in China and North America. These centers, comprising 30% Ph.D. and master talents, collaborate with prestigious institutions like Tsinghua University to drive continuous innovation in lithium battery technology. The incorporation of metal elements in the calcination process enhances the stability of the anode material, making these batteries ideal for high-temperature environments.


Applications and Certifications: Meeting Diverse Needs


From electric tools and garden appliances to energy storage solutions and electric bicycles, Sunpower’s 21700 lithium ion batteries cater to a wide range of applications. The cells meet UL, CB, SGS, BIS, PSE, KC, MSDS, and UN38.3 certifications, ensuring compliance with international standards and environmental safety.


Why Sunpower Stands Out: Our Commitment to Fast Delivery and Strict Quality Control


Fast Delivery

As your trusted lithium battery supplier, Sunpower boasts automatic battery production lines with a capacity of around 1,500,000 li-ion batteries manufactured per day. Need 1-100 pieces? We can deliver in just 3 lead days, providing you with unmatched efficiency and prompt service.


Strict Quality Control

Rest assured that when you choose Sunpower New Energy, you’re choosing safety and performance. Our commitment to delivering safe and high-performance lithium ion batteries is reinforced by our state-of-the-art physical and chemical testing equipment, ensuring quality before each delivery.



In conclusion, Sunpower New Energy’s 21700 lithium ion battery is not just a power source; it’s a testament to our dedication to advanced technology, reliability, and customer satisfaction. From cutting-edge R&D to fast delivery and stringent quality control, we’re committed to leading the charge in the new energy revolution. Choose Sunpower for innovation that powers a sustainable future.