
Rechargeable 18650 & Lithium Polymer Battery Packs
ZERNE provides custom lithium battery solutions for OEM devices, including 18650 battery packs, rechargeable lithium polymer batteries, PCM/BMS integration, custom connectors, wire length, voltage, capacity and pack structure design.
Since 1998
Custom Size & Capacity
Fast Sample Support
Quality Assurance
Choose the Right Battery Type for Your Project
18650 Battery Pack
Best for devices that need stable power output, multi-cell pack design, and long cycle life.
Best For: Portable equipment, power tools, handheld devices, medical backup power
Key Advantage: Mature cylindrical cell structure with stable and consistent supply
Pack Design: Supports multi-cell series and parallel configurations
Custom Options: Voltage, capacity, BMS/PCM, connectors, and cable length available
Performance Benefit: Good cycle life and dependable power output for OEM applications
Rechargeable Lithium Polymer Battery
Best for compact devices that require a slim, lightweight, and custom-sized battery.
Best For: GPS trackers, wearables, IoT devices, heated products, medical devices, compact electronics
Key Advantage: Thin, lightweight, and space-saving battery design
Size Flexibility: Custom thickness, width, length, and shaped battery options available
Custom Options: Capacity, voltage, PCM/BMS, NTC, and connector customization supported
Performance Benefit: Ideal for limited internal space and portable smart devices
Custom
18650 Battery Packs
ZERNE provides custom 18650 battery packs with multi-cell design, stable output and high reliability for portable equipment, power tools, medical devices, scooters and more.

7.4V 1200mAh 18650 Battery Pack

7.4V 1800mAh 18650 Battery Pack

7.4V 2200mAh 18650 2S1P Pack

7.4V 2600mAh 18650 2S1P Pack

22.2V 1800mAh 18650 Battery Pack

22.2V 2600mAh 18650 6S1P Pack

Custom
Rechargeable Lithium Polymer Batteries
ZERNE offers custom LiPo batteries with various sizes, thicknesses and shapes for GPS trackers, wearables, IoT devices, medical electronics and other space-limited applications.
Battery Customization Built Around Your Device
Every OEM device has different space, runtime, power output and safety requirements. ZERNE provides custom lithium battery solutions based on your product structure, application scenario and electrical requirements — from battery cell selection to pack design, protection system, connector integration, sampling and mass production.
Battery Solutions for Smart, Portable and Safety -Critical Devices








Why OEM Customers Work With ZERNE
From battery cell selection to custom pack design, ZERNE supports OEM customers with rechargeable lithium battery solutions built around real device requirements.
Long-Term Manufacturing Experience
ZERNE has focused on lithium battery R&D and manufacturing since 1998, supporting OEM customers with rechargeable battery design, production and project development.
ODM/OEM Project Support
We support custom battery projects with flexible MOQ, fast sampling, technical feedback and export experience for overseas customers.
R&D and Manufacturing Base
ZERNE integrates R&D, battery pack design and production capability, supported by a 30,000㎡ manufacturing base for lithium battery development and delivery.
Certified Quality System
ZERNE supports international battery projects with ISO9001, ISO14001, ISO45001 quality management, strict production control, shipment inspection, BSCI certification, and global compliance documentation.
FAQ
18650 packs are ideal for stable power and high-capacity devices. LiPo batteries suit compact or irregular-shaped devices. Unsure? Share your device details and we’ll recommend the best solution.
Get a Custom Battery Quote
Not sure which battery fits your project? Send us your device space, runtime target and application. Our team will recommend a suitable battery solution.
Mob:+86-13724662111
E-mail:info@zn-battery.com









