Shenzhen Delong Energy Technology Co., Ltd is one of leading lithium ion battery manufacturer in China, our management teams have been in lithium ion battery field for more than 11 years, we have own factory and testing room and sales center. Our factory is located in Dongguan city,Guangdong Province which is occupied with more than 6,000 square meters, we have strong R&D department, more than 200 well trained workers who can ensure to make high quality and more stable products.

Delong Energy has always been devoting himself to the improvement of quality management system and customer service system. With the efforts of superiors at all levels and all the staff, the company gets the approval of Quality Management System.ISO9001:2015.Most of the products get the international approval of CB, KC, PSE, CE,and reach the green standards of ROHS.