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21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
Specifications
Brand Name :
OiD
Model Number :
21700
Certification :
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Place of Origin :
China
MOQ :
100pcs
Price :
$6.5 ~ $1.5
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
1000000
Delivery Time :
3 ~ 30 days
Packaging Details :
Carton
Name: :
21700 Battery
ODM: :
Free Custom Design For Packs
Capacity: :
5500mAh
Cathode: :
NCM/NMC
Type: :
Cylindrical Lithium-Ion Rechargeable Cell
Voltage: :
3.6V
Charge: :
0.5C (2750mA) CC/CV to 4.2V
Discharge :
2C (11000mA)
Operating Temperature: :
Charge: 0°C to 45°C; Discharge: -40°C to 60°C
Cycle Life: :
≥70% capacity retention after 600 cycles
Weight: :
≤73g
Description

Product Overview

The 21700 5500mAh lithium-ion rechargeable cell is a high-capacity cylindrical battery designed for applications requiring reliable power delivery across a wide temperature range. With robust performance characteristics and advanced safety features, this cell is ideal for use in high-drain devices, outdoor equipment, and low-temperature environments.

Key Electrical Parameters

Parameter Specification Conditions
Nominal Capacity 5500 mAh Charge: 0.5C (2750 mA), CCCV, 4.2V, 0.02C cut-off; Discharge: 0.2C (1100 mA) to 2.5V
Minimum Capacity 5350 mAh
Nominal Voltage 3.6 V
Internal Resistance ≤ 25 mΩ AC Impedance, 1000 Hz
Charge Cut-off Voltage 4.20 V
Discharge Cut-off Voltage 2.5 V
Standard Charge Current 0.5C (2750 mA)
Standard Discharge Current 1C (5500 mA)
Max. Continuous Discharge Current 2C (11000 mA) 35°C > T ≥ 0°C
Operating Temperature Charge: 0°C to 45°C; Discharge: -40°C to 60°C
Dimensions 21.65 ± 0.2 mm (Diameter), 70.95 ± 0.2 mm (Height)
Weight ≤ 73 g

Performance Characteristics

Discharge Efficiency

Rate Current Efficiency
0.2C 1100 mA 100%
0.5C 2750 mA ≥ 95%
1C 5500 mA ≥ 93%
2C 11000 mA ≥ 90%

Cycle Life

  • ≥ 70% capacity retention after 600 cycles (0.5C charge / 1C discharge, 4.2V–2.75V)

Low-Temperature Performance

Temperature Discharge Efficiency
-20°C (1C) ≥ 80%
-30°C (0.5C) ≥ 75%
-40°C (0.2C) ≥ 60%

Safety Features

  • Overcharge, over-discharge, short-circuit, and drop protection
  • Stable performance under extreme environmental conditions
  • Complies with standard lithium-ion safety testing protocols

Applications

  • High-drain portable devices
  • Outdoor and low-temperature equipment
  • Power banks and energy storage systems
  • Medical and industrial devices

Notes

  • All tests performed at 25±2°C and ≤ 85% RH unless otherwise specified.
  • Discharge efficiency calculated relative to 0.2C discharge capacity.

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21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices

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Product Detail
Brand Name :
OiD
Model Number :
21700
Certification :
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Place of Origin :
China
MOQ :
100pcs
Price :
$6.5 ~ $1.5
Contact Supplier
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices
21700 Battery 5500mAh 3.6V Lithium-Ion Cell with 2C Discharge for High-Drain Devices

Shenzhen Jianheng Technology Co., Ltd.

Verified Supplier
1 Years
shenzhen
Since 2020
Business Type :
Manufacturer, Distributor/Wholesaler
Main Products :
Lithium Ion Battery, LiFePo4 Battery, Solid State Battery
Total Annual :
15000000-20000000
Employee Number :
300~500
Certification Level :
Verified Supplier
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