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21700 battery Manufacturer in China
Jetray supplies 21700 lithium-ion rechargeable batteries with 3.7V nominal voltage and capacities up to 5000mAh. Compared to 18650 cells, 21700 batteries offer higher energy density and longer runtime—making them ideal for electric vehicles, power tools, solar storage systems, and high-drain industrial devices.
We provide OEM/ODM customization, including tab welding, BMS integration, and battery pack assembly. All cells are tested and certified (UN38.3, MSDS, CE), ensuring safe and reliable performance for commercial and industrial use.
Best Selling 21700 battery
Need a specific Battery ? Jetray supports full OEM customization—voltage, dimensions, BMS, and more.
Reputable 21700 battery Supplies in China - Jetray
Jetray is a trusted supplier of Cylindrical Cell Battery in China, offering advanced manufacturing capabilities and a wide range of voltage and capacity configurations. We utilize precision engineering, strict cell matching, and safety-focused assembly processes to deliver reliable battery solutions for various applications.
We support OEM/ODM customization, low MOQ orders, fast turnaround, and free samples for evaluation. Our facilities are certified to UN38.3, MSDS, CE, IEC, and ISO standards, and every battery pack undergoes comprehensive testing before shipment.
Partner with Jetray for quality and confidence. Get in touch with us today!
Applications of 21700 battery
21700 battery – Frequently Asked Questions
1. What sizes of cylindrical batteries do you offer?
We supply common models like 18650, 21700, 14500, 18500, 10450, 4680, and more. Custom sizes are also available on request.
2. Can I customize the voltage and capacity of the battery pack?
Yes, we offer full customization of voltage, capacity, and configuration to fit your application needs.
3. Do your cylindrical batteries support BMS integration?
Absolutely. We can integrate custom BMS solutions for overcharge, over-discharge, temperature, and short-circuit protection.
4. What applications are these batteries suitable for?
Our cylindrical batteries are widely used in power tools, solar systems, electric mobility, medical devices, and backup energy storage.
5. What certifications do your batteries comply with?
All battery packs are certified to UN38.3, MSDS, CE, RoHS, and IEC/ISO standards.
