About LARGE

Custom Lithium ion Battery

Safe and Fast

Dongguan LARGE Electronics Co., Ltd. is dedicated to providing safe and efficient customized lithium battery solutions for global customers. The company has a registered capital of RMB 30 million, operates on a 15,000 m² manufacturing site, and employs over 280 staff, with R&D engineers accounting for more than 30% of the workforce.

LARGE has established long-term strategic partnerships with over 200 well-known domestic and international brands. Its customized lithium battery solutions have been successfully applied across industries including power systems, medical devices, security, telecommunications, rail transit, petrochemical, and instrumentation. To date, the company has delivered customized battery solutions for 70+ listed companies and completed over 2,680 mass-production projects.

Years
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Focused on custom lithium batteries
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0
Mass production projects
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Completed testing items

R&D Capabilities

LARGE has established an integrated R&D system covering customized cells, battery packs, and power solutions.

70+ member R&D teamled by 7 professor-level experts, supported by dedicated platforms including the Specialty Lithium Battery Engineering Research institute, Guangdong Photovoltaic Energy Storage Engineering Technology Center, Battery PACK Technology Center,and Power supply Technology Center

An in-house testing center recognized as a Dongguan Key Laboratory,equipped with 109 test capabilities compliant with both domestic and international standards

Strong intellectual property portfolio:18 invention patents, 49 utility model patents,9 design patents, and 8 software copyrights

Manufacturing Capabilities

LARGE has established an integrated manufacturing system for customized cells and battery packs.

Specialty Cell Manufacturing Center

Specialty Cell Manufacturing Center:

Three production lines for cylindrical cells,polymer
winding,and polymer stacking,with an annual capacity
of 210 MWh,enabling high-quality,multi-type,multi-
model,and small-to-medium batch custom production

Lithium Battery PACK Manufacturing Center

Lithium Battery PACK Manufacturing Center:

Nine production lines covering low, medium, and high-power battery packs, with an annual capacity of 4 GWh,supporting multi-variant, multi-batch,fast-responsecustomized PACK production at high quality

Corporate Qualifications

National-Level Specialized & Innovative ”Little Giant” SME and National High-Tech Enterprise (China)

Management System Certifications:ISO 9001/ISO 14001/ISO 45001/ISO 13485

Product Certifications: UL,CB, CE, BSMI, PSE, KC, ROHS, REACH, FCC, UN 38.3, CCC, CQC, and more

Company
History

2025

2021-Present
Sustainable Development

National Technologically
Advanced Little Giant Enterprise
IS013485 Certified

2020

2016-2020
End-to-end customization

Battery Cells, Packs and Power supplies

2015

2010-2015
Innovation Acceleration

Institute of Special Purpose Lithium-lon Battery Engineering Guangdong Province Engineering and Technology Center for Photovoltaic Energy Storage

2009

2002-2009
Steady Advancement

National High-Tech Enterprise Guangdong Provincial Private Technology Enterprise IS014001 Certified ISO9001 Certified

2002

2002.08.21
Company Establishment

Dongguan Large Electronics Co., Ltd (LARGE) was officially established.