OEM/ODM customization services for the battery industry
Custom Battery Service
Large Battery is a professional custom battery manufacturer with over 23 years of industry experience, specializing in the design, development, and production of advanced lithium battery systems for B2B clients across the globe.
We collaborate with companies that demand high-performance, application-specific batteries, serving industries such as medical devices、robotics,security, and infrastructure. Our engineering team delivers tailor-made battery packs that meet strict technical, safety, and environmental standards—ensuring performance and reliability in every scenario.
More than just cutting-edge battery technology, we offer end-to-end customization services to help your product stand out in a competitive market. From custom casing design and brand labeling to packaging and visual presentation, we provide complete, tailored solutions that align with your product vision and branding strategy.
OEM Battery Pain Points & Our Solutions
We understand the real-world challenges businesses face when sourcing OEM battery solutions—whether it’s performance instability, delayed timelines, or lack of customization. At Large Battery, solving these pain points isn’t an add-on, it’s the core of what we do.
With 23 years of industry experience, we’ve helped clients across sectors turn complex battery requirements into reliable, market-ready products.
Pain Point: Standard batteries often fail to meet specific size, voltage, or performance requirements.
Our Solution: We offer fully customized battery packs, tailored to your exact application—whether it’s high discharge rate, ultra-thin design, or specific form factor.
Pain Point: Delays in communication and unclear technical coordination slow down project timelines.
Our Solution: Our experienced engineering and sales teams provide fast, responsive, and professional one-on-one support, ensuring efficient communication throughout your project lifecycle.
Pain Point: Prototype delivery is slow, and iterations take too long.
Our Solution: With in-house design and production capabilities, we deliver functional prototypes quickly and provide fast modifications based on your feedback to accelerate your product launch.
Pain Point: Batteries without proper certification face market entry barriers and compliance risks.
Our Solution: We provide batteries compliant with international standards such as UN38.3, IEC62133, UL2054, CE, RoHS, and assist in third-party certification when required.
Pain Point: Batch-to-batch variation in quality causes product failure and customer dissatisfaction.
Our Solution: We implement strict quality control protocols (IQC, IPQC, OQC) and full traceability systems to ensure high consistency and long-term reliability.
Pain Point: OEM suppliers lack services for custom branding, label design, and packaging.
Our Solution: We offer complete OEM/ODM customization, including brand labeling, custom casings, and retail-ready packaging solutions that enhance your product’s market appeal.
Looking for a battery partner who understands your challenges and delivers beyond expectations?
Custom Battery Solutions
At Large Battery, we provide custom battery solutions designed for diverse industries. Whether it’s medical devices requiring high safety, robotics needing compact, high-discharge power, or security systems relying on backup performance—we build batteries to fit your needs.
Our solutions also serve infrastructure, consumer electronics, and industrial equipment, with options tailored for unique sizes, voltages, environments, and branding. Whatever your application, we ensure reliable, precise, and fully integrated energy support.
Reliable, certified batteries for life-critical medical equipment.
High-discharge, compact power for mobile and industrial robots.
Stable backup batteries for alarms, access control, and surveillance.
Durable energy systems for meters, base stations, and grid backup.
Custom-fit batteries for portable, smart, and branded electronics.
Rugged batteries built for harsh, high-demand industrial environments.
Check Out Our Technology
Custom Battery by Voltage
we specialize in custom battery solutions tailored to your voltage requirements. Whether you need low-voltage packs for portable electronics or high-voltage configurations for industrial and energy storage systems, we provide reliable and efficient power solutions built to match your exact specifications.
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
Our charger features intelligent fast-charging technology, utilizing a multi-stage charging process and high-precision voltage control to enhance efficiency and extend battery lifespan. The smart lithium battery charger is equipped with multiple protection mechanisms to ensure comprehensive battery safety.
Custom LiFePO4 Battery
Explore our range of LiFePO4 batteries, known for superior safety, long cycle life and stable performance across various applications.
OEM Battery Process
OEM Battery Process
Tailored Electrical Specifications
We customize voltage, capacity, discharge rates, and protection features to perfectly match your device’s technical requirements.
Flexible Mechanical Design
From shape and size to casing materials and connectors, we adapt battery pack designs to fit your product’s form factor and durability needs.
Branding and Packaging Solutions
We offer full branding services including custom labeling, logos, and packaging designs that align with your brand identity and market strategy.
Our Qualifications and Certifications
Some of Our Trusted Clients
WHAT OUR PARTNERS SAY
Relevant guidelines
Frequently Asked Questions
The choice of chemistry depends on your specific requirements. We offer various options including NMC, LiFePO4, and LCO, each with unique advantages for different applications.
Due to the customization process, mold costs and production Settings, there is a minimum order quantity requirement. This ensures cost-effectiveness while maintaining quality standards. Our minimum order quantity is 1,000
We youCylindrical (18650, 21700, 26650, 32700, 46120), Pouch (LiPo) and Prismatic Cells. The choice depends on your specific requirements for capacity, size and performance.
Key specifications include voltage requirements, capacity needs, physical dimensions, operating temperature range, discharge rate, and any specific certification requirements.
Our standard lithium battery packs come in a variety of configurations: 3.7V to 100V, with watt-hours within 10KWh
