Founded in 2005, Shenzhen Leagend Optoelectronics Co., Ltd. specializes in battery monitoring and testing technology. And it integrates product design, R&D, production, sales and service. Our factory covers an area of 3,000 square meters and has over 13 years of experience in OEMs of well-known foreign brands. Our production strictly follows the ISO9001 quality management system regulations and is certified. In addition to the basic tests, each product undergoes an 8-hour aging test to ensure quality standards. We greatly welcome OEM and ODM orders. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.

      So far, we have more than 20 patents, as well as CE, FCC, ROHS, BSCI, REACH certifications. Our R&D team has unremittingly explored the field of battery test technology, patents will continue to increase