21700 cylindrical lithium battery

Cylindrical lithium battery 21700 series

Explore our diverse 21700 series cylindrical lithium batteries, tailored for transportation, smart devices, power tools, and more. Contact us for inquiries and specifications.


  • Capacity: 4000-6000mAh
  • Dimension: 21mm*70mm
  • Weight: 69-75g
  • Nominal voltage: 3.6V
  • Battery pack assembly: supports multiple series and parallel connections
  • Safety: Our products have undergone third-party certification for safety testing in multiple countries worldwide

Product Details

Product Tags

Application Areas

Transportation: Electric bicycles, hoverboards, electric motorcycles, new energy vehicles

Smart Devices: Robotic vacuum cleaners, wearable devices, smart home devices, vacuum cleaners

Power Tools: Impact drills, POS machines, etc.

Outdoor Power Supply: Portable energy storage, mobile power sources

Consumer Electronics: High-intensity flashlights, drones, etc.

Industrial Applications: Automation equipment, robots, medical devices


Product Display


21700-4000mAh

21700-5000mAh

21700-6000mAh

1718703471143396.jpg


Product real-life photos

Welcome to your inquiry,xaorange@outlook.com

Battery Specifications

📔 21700 Series Capacity & Weight Parameters


SNBattery Type

Nominal Capacity

(mAh)

Minimum Capacity

(mAh)

Weight

(g)

121700-4000mAh4000
@0.2C
3900
@0.2C
≤71
221700-4500mAh4500
@0.2C
4400
@0.2C
≤71
321700-5000mAh5000
@0.2C
4850
@0.2C
≤73
421700-5500mAh5500
@0.2C
5350
@0.2C
≤73
521700-6000mAh6000
@0.2C
5850
@0.2C
≤75


📔 21700 Series Current & Internal Resistance Parameters


SNBattery TypeNominal Current (mA)Maximum Current (mA)

AC Resistance

(mΩ)

ChargingDischargingChargingDischarging
121700-4000mAh20004000800012000≤25
221700-4500mAh22504500450013500≤25
321700-5000mAh25005000500010000≤25
421700-5500mAh27505500385011000≤25
521700-6000mAh30006000420012000≤25



Product features

High Energy Density: Increased by 5-20%

Long Cycle Life: Increased by 20%

Fast Charging: 0.5C-4C

Durability: Over 1000 cycles

High Capacity: 6000mAh

Compatibility: 20% improvement in grouping efficiency, 25% cost reduction

Standardized Specifications: 99.99% assembly compliance rate

High Energy Density, Low Self-discharge, Long-term Storage

High Security: Passed through standards in China, the United States, Europe, Southeast Asia, and other countries

Welcome to your inquiry,xaorange@outlook.com


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