Leading Sunpower New Energy

As a reliable lithium battery manufacturer, Sunpower New Energy featuring a professional R&D team, high productivity, and strict quality control, is devoted to offering superior lithium batteries and customizable battery solutions to partners.

Professional R&D Team

Sunpower New Energy is specializing in the research & development of ultra-low temperature and quick-charge lithium-ion batteries with high safety and high magnification & battery pack. We focus on the industrialization and application research of advanced technology, continuously improving product technology to meet partners’ demands. With an investment of 50 million yuan, our international professional team (from South Korea & Japan), comprising over 30% of doctors and masters, ensures our lithium battery suppliers’ continued competitiveness in the market.

High Productivity

Sunpower New Energy is committed to production automation, intelligence, and informatization. With a fully automatic homogenate, automated assembly and testing system, we could offer lithium battery suppliers at around 1,500,000 pieces of lithium batteries per day, achieved by a dedicated team of approximately 1,300 staff.

Strict Quality Control

Sunpower New Energy ensures quality with advanced physical and chemical performance testing equipment like ICP, GC-MS, SEM/EDS, and HAAKE rotational rheological testing analysis. We follow the MES quality management system for traceability and hold certifications such as IATF16949, ISO14001, BSCI, and compliance with standards like IEC 61960, IEEE-1725, UL2054, UL1642, etc., ensuring reliable lithium battery suppliers.


As an outstanding lithium battery manufacturer, Sunpower New Energy offers a wide selection of lithium power cell products for partners to reach lithium battery solutions.

High Rate Lithium Ion Battery 18650

Durable standard models with long cycle life. Some models are domestic firsts, showcasing low-temperature rise during high current discharging.


High Rate Lithium Ion Battery 21700

A lithium ion battery that leads a performance revolution: high power, high safety, high consistency, and wide temperature range.

Ultra Low-Temperature Battery 18650

Reach -20℃ charge and -40 ℃ high-rate continuous discharge, at the forefront of the performance evaluation.


High Rate Lifepo4 Battery 26700

Setting a benchmark for outstanding cost performance with a wide temperature range of -20°C to 70°C, high energy density, long-lasting life, and exceptional safety.


Sunpower New Energy provides superior lithium battery suppliers and reliable battery solutions applied for various scenarios.

Power Tool

Sunpower New Energy provides perfect battery solutions for power tools, such as gun drills, electric hammers, multi-tools, etc.

Vacuum Cleaner

Sunpower New Energy offers ideal battery solutions for various household electric appliances, including vacuum cleaners, electric shavers, lamps, and more.

Snow Scooter

Sunpower New Energy can fulfill the battery application needs of winter outdoor sports, like snow scooters, frigid zone rescue, electric warm shoes, and clothing, etc.

About Sunpower New Energy

A Leading Lithium Battery Manufacturer & Customizable Battery Solution Provider Of Lithium Battery Suppliers

Shenzhen Defond Technology Co., Ltd., also as known as Sunpower New Energy, (a subsidiary of Jiangsu Changhong Sunpower, which stock exchange code is: 836239) is a high-tech start-up with a rich investment supported by the mother company.

Established in 2014, Sunpower New Energy covers an area of 400,000 square meters and a total construction area of 200,000 square meters. We owns two major production bases in Taixing, Jiangsu and Mianyang Sichuan, with an annual production capacity of over 600 million batteries through the efforts of about 1,300 staff. Besides, our business performance has reached 2.3 billion yuan (RMB).

Our parent company Changhong Group was founded in 1958 and has become a comprehensive multinational corporation that features consumer electronics, energy sources, research and development and manufacturing core devices. What;’s more, the brand value of Changhong has reached 168.736 billion yuan (RMB) and ranks 288th among World’s top 500 brands. 

As a leading lithium battery manufacturer, Sunpower New Energy continuously supplies innovative and high-quality lithium battery products to meet diverse application demands. Our vision is to create a national brand and build a powerful world.

MR. Yang Qingxin


Famous Partners

As one of the most outstanding lithium battery manufacturer, Sunpower New Energy has many trustworthy partners.


Click to learn more about reliable lithium battery manufacturer Sunpower New Energy and our high-quality lithium batteries!

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