Bldg 2, 2 & 3 Fl., United Zhudouwai Ind. Zone, Pengjiang, Jiangmen, Guangdong, China
sales@batterytsj.com
+86-750-3660663
TSJ Sanjun Battery cell aging and testing equipment
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Talk to Our Battery Engineering Team

From emergency lighting systems to high-reliability industrial applications, our engineers support custom battery pack design, certification, and production.
We don't just supply cells; we co-develop reliable power solutions. Whether you're scaling production or solving complex thermal challenges, our experts are ready to collaborate.

You should contact us today if...

  • You are developing emergency lighting or backup power systems
  • Your current battery supplier cannot meet reliability requirements
  • You are experiencing premature battery degradation in field operations.
  • You require a guaranteed supply chain for volumes exceeding 10,000 units/month.

Project Specifications

We prioritize OEM projects with clear technical requirements and volume demand.

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Our Service Promise

24-Hour Initial Reply

A dedicated account engineer will review your submission and contact you within one business day.

48-Hour Feasibility Review

Our senior engineering team will assess your technical requirements and provide a preliminary viability report.

7-15 Day Prototyping

Once specs are finalized, standard chemistry prototypes can be manufactured and shipped globally within 10 days.

China-Based Manufacturing, Global Delivery

Three specialized facilities across China, supporting global OEM and industrial projects.

Jiangmen TSJ Factory Exterior
Headquarters

Jiangmen HQ โ€“ Guangdong, China

Capabilities

R&D Center & BMS Engineering, Custom Battery Pack Assembly, OEM/ODM Project Management

Primary Applications

Emergency lighting systems, Industrial backup power, Medical devices

Jiangmen TSJ Factory Exterior
Lithium

HuaiBei Facility โ€“ Anhui, China

Capabilities

High-volume Li-ion & LiFePO4 cylindrical cell production, Automated manufacturing lines

Primary Applications

Energy storage, Consumer & industrial devices

Jiangmen TSJ Factory Exterior
NiCD/NiMH

Changde Facility โ€“ Hunan, China

Capabilities

NiCd & NiMH cylindrical battery production, High-temperature battery solutions

Primary Applications

Emergency lighting, Safety systems

Serving OEM customers across Europe, the Middle East, and global markets.

Procurement & Engineering FAQ

Expert answers to help you navigate custom battery sourcing, compliance, and technical feasibility.

What is your Minimum Order Quantity (MOQ)?

For standard cylindrical cells, our baseline MOQ is typically 1,000 units. For custom battery packs, MOQ depends on design complexity and tooling requirements.

๐Ÿ‘‰ If your project is in development, contact our engineering team to discuss flexible prototyping options.

Are your batteries certified for international shipping?

Yes. Our batteries comply with UN38.3, CE, and RoHS for global shipping. We also support UL certification for North American markets.

๐Ÿ‘‰ Preparing for export? We can assist in aligning battery designs with your target market's specific regulations.

What are your standard prototyping lead times?

Standard prototypes can be completed within 7โ€“10 days. Mass production lead time usually ranges from 4โ€“6 weeks depending on complexity.

๐Ÿ‘‰ Have a strict timeline? Contact us early so we can evaluate feasibility and prioritize your production schedule.

Do you support custom battery pack design and BMS?

Yes. We provide full custom development, including cell selection, smart BMS integration, and structural integration from concept to mass production.

๐Ÿ‘‰ Developing a new product? We can help define the optimal battery solution to maximize your device's performance.

What information should I provide for a quotation?

To provide an accurate quote, we recommend sharing: Application scenario, voltage/capacity needs, annual volume, and certifications.

๐Ÿ‘‰ Unsure about specs? Submit your application details and our engineers will help define the requirements for you.

How do you ensure battery quality and consistency?

We implement strict IQC/OQC, in-line production testing, and lifecycle validation to ensure stability in critical industrial applications.

๐Ÿ‘‰ Reliability critical? Our team can share detailed testing approaches and validation methods specific to your project.

Still have questions about your battery project?

Our engineering team can review your requirements and provide initial technical feedback within 24 hours.

Talk to an Engineer