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3.6V 5000mAh 21700 Lithium-Ion Cell with NCM/NMC Cathode and Low Temperature Performance for Industrial Applications

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Shenzhen Jianheng Technology Co., Ltd.

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3.6V 5000mAh 21700 Lithium-Ion Cell with NCM/NMC Cathode and Low Temperature Performance for Industrial Applications

Brand Name : OiD

Model Number : 21700-5000

Certification : Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.

Place of Origin : China

MOQ : 100pcs

Price : $6.0 ~ $1.5

Payment Terms : L/C,T/T,Western Union

Supply Ability : 100000

Delivery Time : 3 ~ 30 days

Packaging Details : Carton

Name : 21700 Battery

ODM : Free Custom Design For Packs

Capacity : 5000mAh

Cathode : NCM/NMC

Type : Cylindrical Lithium-Ion Rechargeable Cell

Voltage : 3.6V

Charge : 0.5C (2500mA) CC/CV To 4.2V

Discharge : 1C (5000mA)

Operating Temperature : Charge: 0°C To 45°C; Discharge: -40°C To 60°C

Cycle Life : ≥70% Capacity Retention After 800 Cycles

Weight : ≤73g

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Product Overview

The 21700-5000mAh lithium-ion rechargeable cell is a high-capacity cylindrical battery designed for applications requiring reliable power delivery across a wide temperature range. With a nominal voltage of 3.6V and robust low-temperature performance, this cell is suitable for use in demanding environments.

Electrical Specifications

Parameter	Specification
Nominal Capacity	5000mAh
Minimum Capacity	4950mAh
Energy Density	253Wh/kg
Nominal Voltage	3.6V
Internal Resistance	≤25mΩ (AC Impedance, 1000 Hz)
Charge Cut-off Voltage	4.20V
Discharge Cut-off Voltage	2.50V
Standard Charge Current	0.5C (2500mA)
Standard Discharge Current	1C (5000mA)
Operating Temperature (Charge)	0°C to 45°C
Operating Temperature (Discharge)	-40°C to 60°C
Dimensions (Diameter × Height)	21.65±0.2mm × 70.95±0.2mm
Weight	≤73g

Performance Characteristics

Discharge Efficiency at Various Rates (25°C)

Rate	Current	Discharge Efficiency
0.2C	1000mA	100%
0.5C	2500mA	≥95%
1C	5000mA	≥93%
2C	10000mA	≥90%

Low-Temperature Discharge Performance

Temperature	Discharge Current	Cut-off Voltage	Efficiency
-20°C	1C (5000mA)	2.0V	≥80%
-30°C	0.5C (2500mA)	2.0V	≥75%
-40°C	0.2C (1000mA)	2.0V	≥60%

Cycle Life and Storage

Cycle Life: ≥70% capacity retention after 800 cycles (0.5C charge / 1C discharge, 4.20V–2.75V)
Storage (25°C, 28 days): Residual capacity ≥85%, recovery capacity ≥90%
Storage (55°C, 7 days): Residual capacity ≥85%, recovery capacity ≥90%

Safety Features

Overcharge protection
Over-discharge protection
Short-circuit protection
Thermal stability testing
Compliant with international safety standards

Applications

Portable medical devices
Low-temperature industrial equipment
Outdoor and backup power systems
High-drain consumer electronics

Notes

Avoid charging below 0°C or above 45°C
Do not discharge below 2.5V to prevent cell damage
Store in a dry environment (0–50% RH) at 10–35% state of charge (SOC) for long-term storage

Product Tags:

Low Temperature Performance 21700 Battery

NCM/NMC Cathode Lithium-Ion Cell

Cylindrical Rechargeable Battery

3.6V 5000mAh 21700 Lithium-Ion Cell with NCM/NMC Cathode and Low Temperature Performance for Industrial Applications Images

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