About Us

Founded in 2016, Yundian is an OEM manufacturer focused on wire harnesses and CCS (Cell Contact System) for energy storage systems and electric vehicle batteries. We provide customized connection solutions for home energy storage, outdoor energy storage, light electric vehicle power batteries, as well as battery modules, BMS, and inverters.
We strictly manufacture according to customer drawings and technical specifications, implementing systematic quality control during design transfer, manufacturing, and pre-shipment. Our factory operates under an ISO 9001 quality management system, and our products adhere to standards such as IPC/WHMA-A-620 and UL 817, ensuring consistency and reliability in batch deliveries.
Currently, Yundian employs over 200 experienced staff and a professional engineering management team. Headquartered in Dongguan, we have production bases in Shenzhen, Dongguan, and Hubei, equipped with automated production facilities and professional laboratories. This enables us to reliably support needs ranging from sample validation to scaled mass production.
Through continuous improvement, we are dedicated to helping global clients optimize their supply chain and ensure project efficiency, striving to become a trusted manufacturing partner for wire harnesses and CCS in the energy storage and electric vehicle sectors.

Frequently Asked Questions (FAQ)

Yes. We are a source manufacturer with our own factory, specializing in the R&D and production of energy storage wire harnesses and CCS. Headquartered in Dongguan, we have a primary production base in Huangjiang, Dongguan (approx. 3,000 ㎡), with additional supporting production facilities in Shenzhen and Hubei.
All production is conducted under an ISO 9001 quality management system, covering end-to-end quality control from incoming materials and manufacturing to final shipment.

Yes, we are a professional OEM manufacturer. We focus on manufacturing wire harnesses and CCS for home/outdoor energy storage, BMS systems, and light electric vehicle power batteries. We strictly produce according to customer drawings and specifications, providing full-process support from manufacturability analysis to mass production.

Yes. You can send us photos or samples along with your specification requirements, and we will initiate an evaluation and provide a preliminary proposal.

Yes, we accept small quantity orders. Yundian has no Minimum Order Quantity (MOQ) and supports samples, trial production, and small batch orders, providing standard engineering and quality support.

100% inspection throughout the entire production process, covering key processes and electrical performance.
200% final product inspection to ensure functionality, appearance, and consistency meet specifications.
Final Quality Control (FQC) random sampling before shipment serves as the final quality confirmation.

Yes, we can provide samples for testing or quality verification before placing a bulk order. Most samples are available free of charge (subject to sample type and quantity), with the customer only responsible for shipping costs.

The lead time for mass production depends on project complexity and material availability. For standard orders, the production cycle is approximately 7-15 working days.

Letter of Credit (L/C), PayPal, Telegraphic Transfer (T/T).

Yes, we provide a product catalog. Please contact us via the online form or by email, and we will send you relevant product information.

Small parcels are typically shipped via international couriers like DHL, FedEx, or UPS, offering door-to-door service. For large or bulk orders, air freight or sea freight can be arranged according to requirements, using secure packaging to ensure transport safety.

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