Custom Battery Manufacturer
Special purpose battery cell manufactuer and custom lithium battery supplier
Large Power
Founded in 2002, Large Electronics (Hong Kong) Co., Ltd (Large Power). is a high-tech enterprise specializing in customized lithium battery systems and solutions for global users.
With over 15,000 m² of facilities and 280+ employees—including 70+ R&D staff—LARGE Power focuses on “Four Highs and One Low”: high energy density, high-rate discharge, high-temperature resistance, high safety, and low-temperature performance.
The pain points of customized batteries
Inconsistent Battery Quality Affects System Reliability
Fluctuations in performance or failure rates increase operational risks and maintenance costs for OEMs and integrators.
Long Lead Times Disrupt Production Schedules
Unreliable supply or delayed deliveries can stall product rollouts and break customer trust.
Lack of Custom-Fit Battery Solutions
Standardized battery formats often fail to meet the exact size, voltage, or performance needs of specific industrial applications.
Limited Technical Support During Integration
Without responsive technical assistance, battery integration can lead to system inefficiencies, delays, or even failures.
Hidden Costs Beyond the Battery Price
Frequent replacements, safety incidents, and inefficient energy performance can drive up the true cost of ownership far beyond the initial purchase.
Main Product Categories
Our industry-leading solid-state and low-temperature lithium-ion batteries are widely used in defense, medical, security, communications, railways, petrochemicals, energy storage, and more. Strategic partners include CNPC, China Railway Group, ZTE, Mindray, and others.
Custom Low Temperature Battery
Our custom low-temperature batteries are designed to perform in extreme cold conditions, ensuring reliable power output for your specific application needs.
Custom Lithium Battery
Our lithium-ion batteries offer high energy density, long cycle life and versatility. Share your specific requirements, and we'll provide a tailored solution to meet your needs.
Custom Lithium Polymer Battery
Our lithium polymer batteries deliver high energy density, flexible form factors and excellent performance, making them ideal for a wide range of applications, from consumer electronics to various other industries.
Custom Quasi-Solid-State Battery
Explore our range of quasi-solid-state batteries, offering enhanced safety, higher energy density and improved performance for a variety of applications.
Custom Battery Chargers
In addition to custom battery packs, we also offer tailored lithium battery chargers designed to meet your specific needs.
Custom LiFePO4 Battery
Explore our range of LiFePO4 batteries, known for superior safety, long cycle life and stable performance across various applications.
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Why Choose Large Power
Large Power has a dedicated Technology Center for Battery Modules and 17 advanced laboratories.
Covering the full spectrum from design to testing.
We offer an annual production capacity of 210 MWh for batteries and 4 GWh for battery modules—delivering high-performance, one-stop power solutions.
Deep Specialization in High-End Lithium Battery Solutions
We focus exclusively on developing and manufacturing lithium batteries for specialized, high-demand applications—such as aerospace, military, and emergency equipment—ensuring unmatched performance under extreme conditions.
Integrated R&D and Manufacturing Capabilities
From core technology development to large-scale production, our fully integrated facilities allow for fast iteration, high quality control, and seamless scale-up of innovative battery designs.
Expert-Driven Innovation
Our R&D efforts are guided by a team of highly experienced scientists and technical advisors, ensuring each solution is grounded in cutting-edge science and market relevance.
Commitment to Quality and Reliability
With rigorous quality control processes and international certification standards, we deliver batteries that meet the most stringent safety and performance requirements—consistently and reliably.
Our Qualifications and Certifications
Management System
Certification
Ambition of Large Power is to become global leader in custom lithium-ion batteries with research, development, manufacturing and servicing of battery cells, packs, and power supplies.
Driven by a fusion of cutting-edge multi-technology solutions, IoT-enabled connectivity, and precision-engineered customization, our strategy is laser-focused on delivering what tomorrow’s challenges demand.
By integrating AI-driven smart manufacturing and Industry 4.0 automation into our production lines, we’re not just keeping pace with innovation—we’re redefining it.
Every system we build leverages our 20+ years of cross-industry expertise to not only meet your technical requirements but to elevate your applications’ performance, scalability, and sustainability for decades to come.
