長信ジャパン Company Overview

If you are looking for OEM production of battery products, please consult with us! We offer one-stop support from development to mass production at our group factories in Japan.

Our company is a manufacturer that produces battery products at our overseas group factories. With an engineering manager based in Japan, we can provide a consistent response from development to prototyping and mass production domestically. 1. High Quality and Short Delivery Times Our strengths lie in "high quality and short delivery times," thanks to production at group factories, engineers residing in Japan, and our extensive development experience. 2. Production Achievements We produce over 600,000 battery products annually. 3. Transaction Records We have numerous OEM achievements with major domestic manufacturers and transactions with large retail chains. 4. Commitment to Safety and Security We comply with the Electrical Appliance and Material Safety Law, conduct PSE conformity tests through third-party organizations, and only sell products that pass 100% inspection before shipment. 5. Assurance of Quality Our products utilize high-safety BMS and lithium-ion batteries from major manufacturers. We are also covered by domestic product liability insurance to prepare for PL risks. 6. Commitment to SDGs We are a member of JBRC, the recycling organization for small rechargeable batteries. 7. Product Development We are capable of developing a variety of products, including mobile batteries, fan-equipped clothing, heated clothing, electric bicycles, drones, and portable power supplies.