About OECV Power

About OECV Power

Professional cylindrical cell manufacturer based in Shenzhen

Company Profile

OECV Power is a professional cylindrical cell manufacturer based in Shenzhen, China. With in-house cell production lines and PACK assembly facilities, we deliver reliable battery solutions to clients worldwide.

Our product range covers 18650, 21700, 32140, and 40140 cylindrical cells, as well as custom battery packs from 2S to 24S configurations. We serve diverse applications including RC models, drones, electric vehicles, power tools, energy storage, and robotics.

With certifications including UL, CE, and UN38.3, we maintain strict quality standards across every stage of manufacturing — from raw material inspection to final product testing.

Location

Shenzhen, China

Employees

{N}+

Certifications

UL/CE/UN38.3

OECV Power company building

Certifications & Qualifications

UL Certification

UL Certification

Underwriters Laboratories safety certification for lithium battery products.

CE Marking

CE Marking

European conformity marking for health, safety, and environmental protection.

UN38.3

UN38.3

UN transportation testing for lithium metal and lithium ion batteries.

ISO 9001

ISO 9001

Quality management system certification for consistent manufacturing.

PACK factory workshop
Factory visits welcome

PACK Factory

Our PACK assembly facility handles the complete battery pack manufacturing process — from cell sorting and matching to welding, BMS integration, and final testing. Each pack undergoes rigorous quality checks before shipment.

Daily Output

{N} packs/day

Production Lines

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Spot Welders

{N} units

Testing Equipment

{N} stations

Cell Factory

Our cylindrical cell production line covers the full manufacturing process including electrode preparation, cell assembly, electrolyte filling, formation, and aging. Advanced automation ensures consistent quality across every cell.

Cell Types

18650/21700/32140/40140

Annual Capacity

{N}M cells

Yield Rate

{N}%

QC Stations

{N} checkpoints

Cell factory production line

Join Our Team

Battery Engineer

R&D·Shenzhen

Quality Inspector

QC·Shenzhen

Sales Manager (Overseas)

Sales·Shenzhen

Production Line Operator

Manufacturing·Shenzhen

Interested? Send your resume to hr@oecvpower.com

Ready to Work With Us?

Get in touch to discuss your battery requirements.

Contact Us
OECV

Professional cylindrical cell manufacturer with in-house cell production and PACK assembly lines. Serving B2B clients worldwide with reliable battery solutions.

Contact

  • sales@oecvpower.com
  • +86 755-8888-6666
  • Shenzhen, Guangdong, China

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Certifications

ULCEUN38.3

© 2026 OECV Power. All rights reserved.

Cylindrical Cell Manufacturer & Battery Pack Solutions