Hunan Heyi Energy Technology Co., Ltd. (hereinafter referred to as Heyi Energy) has a factory area of over 4000 square meters and is a professional lithium battery power supply manufacturer specializing in research and development, production, and manufacturing of lithium-ion batteries and battery management systems (BMS). HeYi Energy has a group of professional technical personnel in the research and production of lithium-ion battery packs and BMS. The company has strong technical strength and strong product development and production capabilities. HeYi Energy has a strong technological backing and has established good cooperative relationships with Hunan University, Central South University, National University of Defense Technology, and China Electronics Technology Group. HeYi Energy has a leading domestic level in the field of lithium battery PACK, and has obtained multiple invention and utility model patents. It has undertaken the research and production tasks of special lithium-ion batteries and special purpose backup power supplies in some major national projects. We provide personalized design and product manufacturing for numerous different customers both domestically and internationally. HeYi Energy implements standardized operation and management, with the aim of "pursuing excellence and harmonious win-win", adhering to the quality policy of "quality first, customer first", strictly implementing national standards, ensuring product quality, and insisting on "honest operation and customer satisfaction". The company strictly implements the ISO9001:2015 quality standard system and has passed various tests and certifications from authoritative domestic inspection institutions such as Chongqing Electric Explosion proof Inspection Station, Information Industry Chemical and Physical Power Product Quality Supervision and Inspection Center, Shanghai Electric Explosion proof Inspection Station of Coal Industry, and Reliability Laboratory of National University of Defense Technology. The company's products comply with safety and environmental requirements such as CE, UL, RoHS, etc. The company has always been committed to providing customers with the safest, most stable and reliable cost-effective products. All products of HeYi Energy have strict quality assurance and good after-sales service, and have received high feedback and evaluation from domestic and foreign users. The products are suitable for industries such as national defense and military industry, communication equipment, power storage, low-speed electric vehicles, AVG systems, and underground mining. HeYi Energy adheres to the concept of "hard work and people-oriented", sincerely serving industries such as power, communication, military, and electric vehicles. And constantly launching new products, constantly improving product quality, and continuously providing green energy with the safest, most reliable, most reassuring, and most affordable high-performance products to contribute to creating a green life. In the future development, HeYi Energy will continue to closely follow the pulse of the times, adhere to the business philosophy of low-carbon and environmental protection, take creating the best living environment for humanity as its mission, and contribute its own strength to realizing the great Chinese Dream!