Top Custom Battery Pack Provider
For over 23 years, Large Power has specialized in designing and manufacturing custom battery packs and lithium-ion batteries for a diverse range of industries. Whether you need a rechargeable custom battery or a primary power solution, our expert in-house engineers and battery specialists work closely with you to create the perfect custom-designed battery pack to meet your specific needs.Custom Battery Pack Process
Battery Design
As an experienced battery pack manufacturer, we assess your inquiry based on battery specifications and recommend the most suitable technology to balance lithium battery performance with cost-effectiveness. Once the technical specifications are confirmed, our battery pack designer will initiate the design process, taking into account factors such as power consumption, operating conditions and the application environment of the end product.Sample Development and Production
With a clear understanding of the battery's intended function, we will craft innovative solutions and prepare a detailed proposal for your custom battery pack. Throughout the process, you'll collaborate closely with our dedicated engineers, shaping the product while maintaining full transparency on development progress. You can count on us to meet your goals within the agreed timeline. The sample design process for the lithium battery pack begins in the lab. Once the sample battery is fitted to your equipment and passes technical tests, we move to the pre-production phase
In-House Testing
We have established 14 professional in-house testing labs for battery cell and custom battery pack testing, including battery safety tests, BMS tests and more. Our ISO 9001, ISO 14001, ISO 45001, OHSAS 18000, BSCI and MFI certifications demonstrate our ability to consistently provide advanced battery products and services that meet the highest standards. Additionally, we offer customized battery testing plans tailored to each client's specific needs.Certification
We work closely with you to obtain the necessary lithium battery certifications based on your equipment's market applications. From UL-certified batteries and UN38.3-certified batteries to any other certification requirements, our team ensures your lithium batteries are fully certified. With extensive experience in various international markets, we have delivered a wide range of custom lithium battery packs to meet diverse market needs.
Mass Production
Each year, we assemble millions of rechargeable lithium batteries. With over 280 employees and 30 research scientists dedicated to custom battery design and mass production, we ensure optimal results. By considering factors such as battery technology, annual demand and lead time, we assign the most suitable custom lithium battery production line to meet your mass production needs.Served Industries
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With over 1,000 application cases in the healthcare industry, Large Power has become an industry leader in providing custom medical batteries, serving clients worldwide. -
As one of the top robotics battery suppliers, we leverage advanced technology to provide custom battery solutions for robotics companies. Large Power is committed to delivering the most reliable and cutting-edge solutions on the market. -
Large Power designs and manufactures battery packs, backup solutions, and custom battery chargers for security system devices. We collaborate closely with security system companies to deliver and custom-design power solutions that meet the specific standards of each application. -
Large Power designs and manufactures battery solutions for various data center applications. We collaborate closely with data center operators and equipment manufacturers to deliver custom power solutions that meet the demanding requirements of this critical infrastructure.
Check Out Our Technology
Our custom low-temperature batteries are designed to perform in extreme cold conditions, ensuring reliable power output for your specific application needs.
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.
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.
Explore our range of quasi-solid-state batteries, offering enhanced safety, higher energy density and improved performance for a variety of applications.
In addition to custom battery packs, we also offer tailored lithium battery chargers designed to meet your specific needs.
Explore our range of LiFePO4 batteries, known for superior safety, long cycle life and stable performance across various applications.
What Our Clients Say
- Some of Our Clients
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“Precision and safety were non-negotiable for our portable MRI machines. Your team developed a UL-certified 24V 60Ah lithium battery with redundant temperature protection and ultra-quiet discharge (<40dB). The IP67-rated casing
survived rigorous sterilization protocols, and your ISO 13485-compliant documentation streamlined FDA approvals. Post-launch, your prompt replacement of a minor firmware bug in the BMS (within 48 hours!) saved us weeks of downtime.
We’re now exploring partnerships for our next-gen robotic surgical tools.”-R&D Lead, from one of Medical clients
“We needed a high-power, lightweight battery for our autonomous warehouse robots. Your team delivered a custom 48V 100Ah lithium battery pack with ultra-low internal resistance (<150mΩ) and a modular design that fit our tight chassis space. The batteries
have consistently performed in -10°C environments, and your engineers even optimized the BMS for CAN bus integration. Over 12 months, the cycle retention remains above 85% – far exceeding our expectations. Your responsiveness during
prototyping (5 iterations in 3 weeks!) and adherence to CE/UN38.3 certifications were exceptional.” — CTO from one of German Client
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Frequently Asked Questions
Find answers to common questions about our custom battery solutions. Can't find what you're looking for? Contact Us！What chemical should I use for custom battery pack?
The choice of chemistry depends on your specific requirements. We offer various options including Li-ion, LiFePO4, and Lithium Polymer, each with unique advantages for different applications.
Why custom lithium polymer battery has minimum order of quantity requirement?
MOQ requirements exist due to the customization process, tooling costs, and production setup. This ensures cost-effectiveness while maintaining quality standards.Our MOQ is at least 1000 for lithium battery pack with 18650 cell battery, and at least 5000
for polymer chemical battery.
What battery cell used for custom battery pack design, is it 18650 battery pack?
We use various cell types including 18650, 21700, and prismatic cells. The choice depends on your specific requirements for capacity, size, and performance.
What specifications should I provide to battery pack manufacturer?
Key specifications include voltage requirements, capacity needs, physical dimensions, operating temperature range, discharge rate, and any specific certification requirements.
What configurations and specifications are available for standard Li-Ion battery packs?
Our standard Li-Ion packs come in various configurations, typically ranging from 3.7V to 48V, with capacities from 1000mAh to 100Ah+.
Should I consider custom battery pack or standard lithium battery pack?
This depends on your specific needs. Custom packs are ideal for unique requirements or high-performance applications, while standard packs may be more cost-effective for common applications.
