Shenzhen Passional Import & Export Co., Ltd. specializes in the production, sales and research and development of various lithium-ion battery packs, lithium battery protection management systems, lithium battery testing equipment and other related products. Products are widely used in electric bike, pure electric low-speed vehicles, special vehicles, telecommunication backup power supplies, Solar home energy storage systems and outdoor mini emergency backup power supplies. We have more than 10 years of experience in battery manufacturing and have a professional R&D team of more than 10 people. Several software and hardware engineers. We can develop and produce batteries according to customers' designs and requirements.