YLY is a leading manufacturer of lithium ion rechargeable batteries, with over 10 years of experience in the industry. Our expertise in producing high-quality LiFePO4 batteries, Lithium-ion batteries, and Li-polymer battery packs has established us as a reliable and trustworthy supplier for a wide range of applications. Our advanced production facilities, state-of-the-art technology, and strict quality control standards enable us to provide premium products that are durable, efficient, and safe. With our extensive experience and commitment to customer satisfaction, we are your ideal partner for all your battery needs.

We wish to work with you on the basis of:

Reliable quality– Qualified batteries have strict with Automated Production Line and Precise equipment. We are always devoting it with experienced engineers.

Positive service— We treasure every customer of ours and visitors from the website. We assure to give response within 24 hours.

Taking responsibility– Our members to proactively take responsibility when work with our customers, we would strive for offer the best solution to each of our customers.

Sharing happily– We are a happy team and enjoy sharing with our members and customers, we believe that the sharing not only bring us improvement but also make our service more efficient.


Shenzhen Youlongyuan Technology Co., Ltd. serves as a battery manufacturer, it’s mainly supplying battery solutions as customers request.


We sit in Shenzhen China, which is the cluster of li-ion battery with matured R &D, production, exporting and transportation.


Quality is our base and faith and we’ve been trying to offer the safest quality to our customers. We’re gratified that we got as high as 99% of satisfaction on quality in these years.

Quality Assurance start from Design stage to Process completion

Our Mission

Providing the best power solutions and services to our customers. Helping customers achieve business success and common development.

Our Vision

Keep to Being a Reliable Power Solution Provider.

Our Value

We Work Hard, We are Honest and Diligent.
Happiness is helping others.

Quality Meet Customer’s Requirement

  • Customized design all the products to meet customer expectation;
  • Fine tune any non-conformance till meet  the customer specifications by PDCA;
  • Provide the technology support to the  manufacturing including the on site audit and corrections.

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