About Us
STW is a professional 3C charging manufacturer founded in 2004 and headquartered in Shenzhen, China. With over 20 years of industry experience, we specialize in portable chargers, phone chargers, wall chargers, car chargers, and power banks—offering both wholesale and OEM/ODM customized services to global clients.
Our factory is powered by 100 skilled workers and 20+ R&D engineers, each with over a decade of experience. We operate SMT automated production lines with 28 strict quality checkpoints, ensuring every product meets international standards. All our products are certified to BSCI, ISO9001, CE, FCC, RoHS, and CB, and are exported to more than 100 countries and regions. With a stable monthly capacity of 30,000–50,000 units, we deliver reliable quality at scale.
Our 20+ sales professionals provide 24/7 support, responding quickly to your needs—whether for standard orders or customized solutions. Guided by the principle of “Quality First, Customer Supremacy,” STW is committed to being your trusted long-term partner for all charging solutions.
Production And Processing of Products
STW specializes in professional manufacturing and processing, operating modern production facilities in both Shenzhen and Dongguan. Leveraging our strategic locations and access to a complete industrial chain, we efficiently meet high market demands. As a reliable factory and supplier, we maintain a stable monthly production capacity of 30,000 to 50,000 units, fully supporting customers with large-volume wholesale orders for portable chargers, phone chargers, and power banks.
Our manufacturing facility is equipped with advanced SMT production lines, along with dedicated manufacturing and assembly workshops. The SMT workshop features extensive fully automated machinery, enabling end-to-end automated production from component placement to soldering. This automation significantly enhances both efficiency and product quality, strengthening our capabilities as a trusted manufacturer for customized car chargers and wall charger solutions.
We pride ourselves on a skilled team of over 100 experienced workers whose technical expertise ensures strict adherence to production specifications. Every product—whether a standard phone charger or a customized power bank—meets exacting standards and is delivered on schedule. Upholding our principle of “Quality First, Customer Supremacy,” we are committed to providing premium products and exceptional service to our global clients.
OEM/ODM Service
STW is a professional OEM/ODM manufacturer of charging products, backed by a 20+ expert R&D team with over a decade of industry experience. We deliver tailored solutions for phone chargers, car chargers, and power banks.
For OEM services, we offer end-to-end solutions—from product design and functional customization to manufacturing and after-sales support—meeting diverse wholesale requirements.
For ODM services, we support full mold development and structural customization, creating distinctive designs for customized power banks and portable chargers.
Sales Team
STW has a professional sales team of over 20 experienced professionals, each with an average of 5+ years of industry expertise and a deep understanding of global market dynamics and customer needs.
Our sales team combines strong communication skills with sharp service awareness to respond quickly and deliver personalized solutions—whether for standard phone chargers, customized car chargers, or bulk power bank orders.
We provide round-the-clock service, ensuring immediate response and professional support anytime, anywhere. Upholding a unwavering customer-first commitment, we combine expertise with exceptional service to earn enduring trust and global acclaim.
Certification
Our company holds multiple core technology patents that comprehensively cover various power bank car charger wall charger fields. These patents provide robust technical support and competitive advantages for our products, securing our leadership position and sustaining innovation capabilities in charging technology.
