Shenzhen Longtime Energy Storage Technology Co., Ltd ,a national high-tech enterprise integrating research and development, production and sales of portable power solutions, found in 2016 a. We are now one of leading manufacturer in portable power supply, offering comprehensive range of top-of-the-line products of phone battery,power bank, portable power station ,as well as lithium battery pack.The factory is located in Guangming District of Shenzhen, the research & development center is in Changzhen, Guangming district, Longtime has been focusing on technological breakthroughs in the field of lithium battery pack. At the beginning of our business, Longtime mainly developed high-end digital accessories, and was the first company in the industry to launch high-capacity commercial phone batteries and enjoyed the great popularity among China, In 2012, Longtime transformed to develop power bank, relying on the innovative and efficient research and development team, adhering to the original technology-oriented style, with excellent product performance, Longtime power bank selling well in Europe, American, Japan and South Korea and becoming a reliable supplier for many international well-known brands.Being market-oriented, insisting on product innovation, and relying on strict technology and quality control , Longtime achieved the Best Business Award and passed the factory audit of ISO9001,ISO14001, Carrefour & BSCI. All our products are fully approved with CE, ROHS, FCC, IEC62133, IEC62368,CB, PSE ,KC ,TUV Mark certificates. In 2016,Longtime officially started to launch projects of portable power station and lithium battery pack for electric vehicles. After 4 years of refinement, Longtime power station has won the unanimous favor of overseas high-end customers for its simple appearance and outstanding performance, and the sales volume has steadily increased. In 2020,Lithium battery of electric vehicle has also been successfully put on the market, with innovative structure, no need to be refitted in the car but easy to install, with double capacity and strong power loading.Looking ahead, Longtime will continuously discover the infinite possibilities, promote the product with innovation,improve the brand influence with quality and pursuing to be at the forefront of the industry.Warmly welcome you and opening up the boundaries of communication. We synchronize with your ideal partner!