When it comes to high-temperature environments, Sunpower New Energy‘s 5000mah 21700 Li-ion battery truly shines. Our company has developed a battery that delivers superior performance, even in extreme heat conditions. With its remarkable storage and cycle life performance in high-temperature conditions, our battery ensures that your equipment remains powered and reliable when it matters most.


Superior Performance in High-Temperature Environments

Operating at a maximum temperature of 85℃, our Sunpower 5000mah 21700 Li-ion battery provides a reliable power source in demanding applications. Whether it’s powering industrial machinery or operating in hot climates, our battery’s performance remains consistent and dependable. We understand the importance of reliability for our customers, and our battery is designed to exceed their expectations.

In addition, our battery boasts a swelling rate of less than 2% at high temperatures. This ensures the safety of your equipment and mitigates the risk of damage caused by excessive heat. With Sunpower New Energy’s 21700 Li-ion battery, you can have peace of mind knowing that your operations will continue smoothly, even in challenging environments.


Advanced Battery Technology and Certifications

At Sunpower New Energy, we pride ourselves on developing advanced battery technology that sets us apart from the competition. Our 5000mah 21700 Li-ion battery offers impressive longevity, with a battery cycle life of over 600 cycles. This means that our battery can withstand numerous charge and discharge cycles, providing long-lasting performance for our customers.

To ensure the highest level of quality and safety, our battery has undergone rigorous testing and obtained certifications from renowned organizations. We comply with UL, CB, SGS, BIS, PSE, KC, MSDS, and UN38.3 certifications, demonstrating our commitment to meeting global industry standards. We stand by the quality and reliability of our products, and these certifications serve as a testament to our dedication.


Versatility and Applications of the 5000mah 21700 Li-ion Battery

Sunpower New Energy’s 5000mah  21700 Li-ion battery offers unparalleled versatility, making it suitable for a wide range of applications across various industries. In electric propelling applications, such as engine starting and robots, our battery provides the necessary power and performance to drive efficiency and productivity.

Moreover, our battery is an excellent choice for energy storage solutions. Whether it’s solar power systems or wind power systems, our 5000mah 21700 Li-ion battery efficiently stores and delivers energy, enabling our customers to harness the potential of renewable energy sources. It is also well-suited for off-grid applications, offering reliable power supply in remote locations.

Additionally, our battery excels in back-up systems and UPS applications, including telecom, medical, and military equipment. When critical operations require uninterrupted power supply, our 5000mah 21700 Li-ion battery ensures reliable performance, safeguarding valuable data and ensuring the smooth operation of essential equipment.



Sunpower New Energy’s 5000mah 21700 Li-ion battery is a game-changer in the world of energy storage and power solutions. With its superior performance in high-temperature environments, advanced battery technology, and versatility across a range of applications, our battery unleashes the true potential of your operations. Trust in our company, our products, and our commitment to delivering reliable and high-performance batteries. With our 21700 Li-ion battery, you can maximize efficiency, ensure safety, and achieve the results you desire. Contact us today to explore how Sunpower New Energy can empower your business and drive success with our cutting-edge battery solutions.