Contact Us

We believe in transparency.

We welcome prospective partners to visit our state-of-the-art manufacturing plant in China to see our production lines and quality control processes firsthand.

Please contact our sales team to schedule a tour.

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Get in Touch with Long Sing Energy

Please complete the following information as thoroughly as possible. We will assign the appropriate sales, marketing, or engineering representative to follow up with you based on your application scenario. You can also directly email to luke.liu@longsingtechnology.com.









    Long Sing Energy Support Team
    *Long Sing Energy respects and protects your privacy. The information you submit will be used solely for communication and service related to this inquiry. We will not sell or disclose your personal information to third parties without your authorization.
    *After submitting the form, our team will respond within 1–2 business days.

    Technical Support

    Thank you for your interest in Long Sing Energy.

    As a premier manufacturer of high-performance rechargeable lithium-ion batteries, we specialize in delivering custom OEM and ODM solutions for diverse applications, from consumer electronics to industrial energy storage.

    Whether you have a specific technical requirement or need guidance on battery selection, our engineering team is ready to collaborate.

    Reach out to us today to power your next innovation.

    Before You Reach Out

    To provide you with the most accurate quote and technical proposal, please be ready to share details about your project, including:

    • Target Application & Operating Environment
    • Required Voltage, Capacity, and Dimension Constraints (Max L x W x H)
    • Estimated Annual Volume and Target Launch Date

    Our typical process to manufacture your battery:

    1. Initial Consultation: Review of your requirements.
    2. Technical Proposal & Quotation: Our engineers propose the best cell/pack solution.
    3. Sample Development & Testing: Prototyping for your validation.
    4. Mass Production: Scalable manufacturing with rigorous QC.

    Our Offices

    Headquarters
    Hong Kong Office
    Long Sing Technology Group (HK) Ltd. Room 809, 8 floor, Data Technology Hub, 5 Chun Cheong Street, Tseung Kwan O INNOPARK Tel: (852) 2151 1233
    R&D Center
    Shenzhen Office
    Shenzhen Langsheng New Energy Technology Co., LTD. Room 2307, 23/F, Building 1, Beihang Building, Nanshan District, Shenzhen, China Tel: (86) 0755-86309333 Mobile: (86) 18696183738
    Manufacturing
    Wuhan Factory
    418-26, Office Building of Customs Supervision Place, No. 301 Guanggu Avenue, Donghu New Technology Development Zone, Wuhan, China Tel: (86)027-63499033 Mobile:(86) 18696183738