When it comes to high-temperature environments, Sunpower New Energy‘s 5000mah 21700 High Rate Lithium Ion Battery excels in delivering optimal performance. Our company understands the unique challenges faced by industries operating in extreme heat conditions, and we have developed a battery that meets and exceeds expectations. With its exceptional storage and cycle life performance under high-temperature conditions, our battery ensures that your equipment remains powered and efficient when it matters most.


Optimal Performance in High-Temperature Environments

Our Sunpower 5000mah 21700 High Rate Lithium Ion Battery boasts a discharge efficiency of over 90% even at temperatures as high as 120℃. This means that our battery maintains a high level of performance, allowing your operations to continue smoothly without compromising on efficiency. Additionally, the battery’s long-lasting cycle life of ≥600 cycles ensures that it can withstand numerous charge and discharge cycles, providing reliable power for extended periods.


Robust Design and Safety Features

Sunpower New Energy takes pride in the robust design and safety features incorporated into our 21700 High Rate Lithium Ion Battery. We prioritize the safety of our customers and their equipment, and our battery is designed to meet their stringent requirements. With a discharge cut-off voltage of 2.5V and a charging cut-off voltage of 4.2V, our battery ensures efficient power utilization while safeguarding against over-discharge or overcharging.

Furthermore, our battery has a maximum charge current of 5A and a continuous discharge current of 30A, making it suitable for a wide range of high-power applications. With these specifications, our battery provides the necessary power to drive productivity and efficiency in demanding operations. Additionally, our battery exhibits superior safety, demonstrating no fire or explosion risks even when exposed to high temperatures.


Wide Range of Applications for the 21700 Li-ion Battery

Sunpower New Energy’s 21700 High Rate Lithium Ion Battery offers versatility across a wide range of applications, making it a valuable asset for various industries. In electric propelling applications, such as power tools and electric bicycles, our battery delivers the high-rate power needed for enhanced performance and efficiency.

Moreover, our battery is an excellent choice for energy storage solutions, including solar and wind power systems. By efficiently storing and delivering energy, our 21700 Li-ion battery allows our customers to optimize the utilization of renewable energy sources. It is also well-suited for off-grid solutions, providing reliable power in remote locations where traditional power sources may be limited.

Additionally, our battery excels in back-up systems and UPS applications, such as telecom, medical, and military equipment. With its high-rate discharge capabilities and long-lasting performance, our 21700 Li-ion battery ensures uninterrupted power supply, safeguarding critical operations and protecting valuable data.



Sunpower New Energy’s 21700 High Rate Lithium Ion Battery is a game-changer in enhancing efficiency across various industries. With its optimal performance in high-temperature environments, robust design, and safety features, our battery empowers our customers to achieve their goals with confidence. Trust in our company, our products, and our commitment to delivering high-quality, high-performance batteries. Experience the benefits of Sunpower New Energy’s 21700 High Rate Lithium Ion Battery and unlock the potential for enhanced efficiency and productivity. Contact us today to learn more about how our battery can revolutionize your operations and contribute to your success.