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Custom 18650 Lithium Battery Pack

Looking for a reliable custom 18650 battery pack manufacturer?
 
Zerne Battery designs and manufactures rechargeable 18650 lithium-ion battery packs tailored to your exact requirements. From 7.1V and 11.1S battery packs for portable electronics to high-capacity 22.2S-29.6S solutions for industrial equipment, we offer complete OEM and ODM services including cell selection, BMS integration, connector customization, and certification support.
 
With over 28 years of battery manufacturing experience, advanced production facilities, and strict quality control processes, we help global customers bring safer, longer-lasting, and more reliable battery-powered products to market.

Products List

7.4V 1200mAh 18650 Lithium Battery Pack
7.4V 1200mAh Battery Pack
 
7.4V 1800mAh 18650 Lithium Battery Pack
7.4V 1800mAh Battery Pack
 
22.2V 1800mAh 18650 Lithium Battery Pack
22.2V 1800mAh Battery Pack
 
7.4V 2200mAh 18650 Lithium Battery Pack
7.4V 2200mAh Battery Pack
 
7.4V 2600mAh 18650 Lithium Battery Pack
7.4V 2600mAh Battery Pack
 
22.2V 2600mAh 18650 Lithium Battery Pack
22.2V 2600mAh Battery Pack
 
Many of our models are not displayed here. If you cannot find the model you need, please contact us for a custom battery.

Product Details

Moedel Voltage Capacity
18650-2S1P 7.4V 2200-3500mah
18650-2S2P 7.4V 4400-7000mah
18650-3S1P 11.1V 2200-3500mah
18650-3S2P 11.1V 4400-7000mah
18650-4S2P 14.8V 4400-7000mAh
18650-6S2P 22.2V 4400-7000mAh
18650-1S5P 3.7V 10000
Need a Custom 18650 battery pack Battery for Your Project?​​​​​​​
Tell us your device requirements and our engineers will recommend the most suitable 18650 battery pack battery solution.

Battery Performance

High Energy Density

18650 lithium-ion battery packs provide high energy storage in a compact size, making them ideal for portable and space-constrained applications.
 

Flexible Voltage & Capacity

By combining cells in series and parallel, battery packs can be customized from 3.7V to 29.6V and tailored to meet specific capacity requirements.

Reliable and Safety

Built with high-quality lithium-ion cells and advanced battery management systems (BMS), 18650 battery packs deliver stable voltage output and dependable performance.

Long Cycle Life

Compared with many traditional rechargeable batteries, 18650 battery packs offer hundreds of charge-discharge cycles, helping reduce replacement and maintenance costs.

Applications of 18650 Lithium Battery Pack

Electric Shavers

The 18650 lithium battery delivers compact, reliable, and long-lasting power for most mid-to-high-end electric shavers. Its stable discharge performance ensures consistent, powerful blade operation, enhancing users’ daily experience.

Barcode Scanners

Powered by high-capacity 18650 lithium batteries, barcode scanners achieve longer runtime, stable power output, and reliable performance for continuous daily operations.

Industrial Devices

Powered by high-performance 18650 lithium batteries, handheld thermal imaging devices deliver longer operating time, stable power output, and reliable performance for demanding industrial inspection environments.

Beauty Device

Powered by reliable 18650 lithium batteries, handheld beauty devices provide longer usage time, stable energy output, and consistent performance for a smooth and uninterrupted user experience.

Certified Quality, Global Trust

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Let us find the right battery solution for you.

FAQs
  • What is a 18650 battery pack?
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    A 18650 battery pack is a rechargeable lithium-ion battery assembly made by connecting multiple 18650 cells in series and/or parallel configurations. It can be customized to achieve different voltages, capacities, and discharge currents for various applications, including medical devices, industrial equipment, robotics, security systems, and portable electronics.
  • How long does a 18650 battery pack last?
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    The lifespan of a 18650 battery pack depends on cell quality, operating conditions, and charging habits. Typically, a high-quality 18650 battery pack can provide 500–1,000 charge cycles before its capacity decreases to around 80% of the original capacity. Under normal use, this can translate to several years of reliable operation.
  • How many cells are in a 7.4V battery pack?
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    A 7.4V battery pack typically consists of two 3.7V lithium-ion cells connected in series (2S). The total number of cells depends on the required capacity. For example, a 7.4V 2200mAh battery pack may use 2 cells (2S1P), while a 7.4V 4400mAh battery pack may use 4 cells (2S2P).
  • Can you customize battery pack voltage and capacity?
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    Yes. We provide custom 18650 battery pack solutions with voltage options ranging from 3.7V to 29.6V (1S–8S configurations). Capacity, discharge current, BMS functions, connectors, cable lengths, and housing designs can all be customized according to your project requirements.
  • What certifications are available?
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    Our custom 18650 battery packs can be supplied with UL, ROHS, REACH, KC, PSE, IEC62133, CB, IEEE,CE,MSDS ,UN38.3 and other required test reports depending on the application and target market. Certification options can be discussed during the project evaluation stage to ensure compliance with local regulations and transportation requirements.
  • How long is the production lead time?
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    It’s depends on the order quantities. Usually, it takes 7~10 days to make handmade samples. For bulk order, let's confirm when you place official order,normally the lead time is 35-45 days.
  • What is your MOQ for custom battery packs?
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    The standard MOQ for custom 18650 battery packs is typically 3,000–5,000 pieces, depending on the battery specification, cell selection, BMS requirements, and customization level. For project evaluation and testing purposes, sample orders are available before mass production. Please contact our team for specific MOQ requirements.
  • Can you provide samples before mass production?
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    Yes. We provide samples for testing, validation, and product development before mass production. Our engineering team can build samples according to your required voltage, capacity, dimensions, connector type, and BMS specifications. Sample lead times typically depend on the complexity of the design and component availability.
Guangdong Zhaoneng Technology co.,ltd.
We are a professional manufacturer of new energy lithium batteries integrating R&D, design, manufacturing and sales with 28 years experience.

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