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.
Our R&D team covering hardware development, embedded development, server development, APP development, WEB development, UI design and industrial design. That means one-stop battery test customized service is available.

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.