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21700battery Cells - China

price: contact company for price

21700battery Cells

Products Photos Catalog 21700battery Cells Photos Catalog

21700 Battery Cells are advanced cylindrical rechargeable lithium batteries designed to deliver higher energy density, longer runtime, and improved thermal performance compared with traditional formats.

With a diameter of 21mm and length of 70mm, 21700 cells strike an optimal balance between capacity, power output, and safety, making them one of the most popular choices for modern industrial, commercial, and energy storage applications.

Core Competitive Advantages

1 - Capacity and density both increase, reducing assembly costs

Single-cell capacity 3000-5000mAh, approximately 30%-50% higher than 18650, with the same system reducing the number of cells by 20%-30% and simplifying the PACK design, lowering BMS and structural component costs.

Energy density 180-260Wh/kg, supporting 2C-11C fast charging and high-current discharge.

The lithium-ion system can sustain discharge at 25-50A, and the lithium iron phosphate has a cycle life of ≥3000 times (80% DOD).

The terminal replacement frequency is significantly reduced.


Company Contact:


  • Phone: +86 188 3350 0632

  • Address: No. 85 XiGang North Road, Haigang District, Qinhuangdao City, Hebei , China

  • Email: Email

Published date: May 10, 2026

  • Business Description: We are MateLion Battery,Your Mate on the way to a green future/better life! When you open this page, you are opening a window for better business as we always support customers with Reliable and Professional lithium ion cells and batteries for the past decades.

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