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Custom Lithium Ion Battery

OEM Pack Assembly & Cell Supply

Wholesale High-Drain Lithium Ion Battery Cells

Powering the future of e-mobility and energy storage. As a tier-one lithium ion battery supplier, we offer automated cell matching, ultra-safe explosion-proof designs, and full-scale OEM pack assembly for your demanding projects.

Cylindrical Lithium-Ion Battery Cells

Industrial Application Outline

Core Competency: Designed for enterprise integration, our cylindrical cell series (including 18650 and 21700 formats) delivers ultra-long life cycles and highly stable discharge rates.

Manufacturing Edge: Backed by one of the most reliable lithium ion battery manufacturers, we ensure absolute consistency through automated production. Our solutions are deployed across New Energy Passenger Cars, Grid ESS, Telecom Backup, and specialized construction equipment.

Precision Engineering & Specifications

As a premier facility among global lithium ion battery manufacturers, we deliver high-capacity cells engineered for rigorous applications. From automated internal resistance (IR) sorting to custom busbar configurations, our cells provide stable high-rate discharge, explosion-proof safety, and seamless integration capabilities essential for large-scale energy systems and demanding OEM pack assemblies.

Model Voltage (V) Capacity (mAh) Resistance (mΩ) Max Discharge
18650-2500 3.7V 2500 ≤20 mΩ 20A
18650-3000 3.7V 3000 ≤26 mΩ 15A
21700-4000 3.7V 4500 ≤13 mΩ 45A
21700-5000 3.7V 5000 ≤20 mΩ 14.7A

Production Advantages

  • Automated Consistency

    Strict IR and capacity grading ensures no weak links in pack assembly.

  • Ultra-Safe Structure

    Explosion-proof valves and zero-leakage sealing technology.

  • Customized Solutions

    Full support for custom demand, from bare cells to complete packs.

Complete OEM Pack Manufacturing

Beyond supplying individual cells, we specialize in developing a custom lithium ion battery pack tailored precisely to your voltage and space constraints. Supported applications include New Energy Buses, Professional Utility Vehicles, Marine Vessels, and Grid-scale ESS.

Verified by Industry Leaders

★★★★★

"Partnering with a competent lithium ion battery manufacturer changed our assembly speed. The IR consistency on their 21700 cells means our BMS calibration time is cut in half."

James V.

VP of Manufacturing, EV Solutions

★★★★★

"We source over 500k units annually for our power tool division. The 20A continuous discharge rate on the 18650-2500 model is extremely stable with minimal thermal runaway risks."

Marcus K.

Lead Procurement, Industrial Tools

★★★★★

"Their custom pack assembly service is flawless. They handled the nickel strip welding and housing design for our Telecom ESS project perfectly on schedule."

Sarah W.

Project Director, Grid Backup Systems

Wholesale & Technical FAQ

Q: What is the minimum order quantity (MOQ) for wholesale cells?

Our standard MOQ for bare 18650 and 21700 cells is optimized for pallet-level wholesale to ensure the best bulk pricing. For custom pack assembly, MOQ varies based on engineering requirements.

Q: What is the production lead time for bulk orders?

For standard capacity models in volumes exceeding 100,000 units, our automated production lines typically fulfill orders within 15 to 25 business days, ensuring stable supply.

Q: Do your cells comply with international safety standards?

Yes, our cells undergo rigorous environmental system certifications and are engineered with explosion-proof designs, meeting strict global safety and transport compliance.

Q: How do you guarantee consistency for large pack assembly?

We utilize fully automated sorting equipment that strictly grades and matches every single cell based on capacity, IR, and voltage, guaranteeing uniform performance.

Q: What is the maximum discharge rate of your high-performance cells?

Depending on the model, our high-drain cells (such as specific 18650-2500mAh units) can support continuous maximum discharge rates up to 20A, ideal for heavy-duty applications.

Q: Can you provide full custom battery pack assembly with BMS?

Absolutely. We offer comprehensive OEM services, from pre-welded nickel strips to complete custom solutions including thermal management and advanced BMS matching.

CONTACT US

If you have any queries, get in touch today! Don't hesitate. We try to take the extra step for our customer satisfaction.
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