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21700 Battery 4000mAh 3C Discharge 500 Cycles 3.6V

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21700 Battery 4000mAh 3C Discharge 500 Cycles 3.6V

Brand Name : OiD

Model Number : INR21700E40JH

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

Place of Origin : China

MOQ : 100pcs

Price : $0.5 ~ $100.0 / pcs

Delivery Time : 3 ~ 7 days for storage

Payment Terms : TT,L/C,Western Union

Name : 21700 Battery

ODM : Free custom design for packs

Battery Type : 4000mAh Rechargeable

Cathode : NCM or NMC

Higher Energy Density : LongerrRuntime for 20-30% more energy than 18650 cells

Superior Power Output : Higher discharge rates (up to 12A)

Cost-Effective & Space-Saving : Reduce pack weight and cost by requiring fewer cells in series and parallel

Future-Proof : Ensure compatibility with next-gen tech for high-demand applications

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INR21700E40JH 3.6V 4000mAh 3C Discharge 500 Cycles

Product Name

INR21700E40JH Lithium-Ion Rechargeable Battery

Advantages

High energy density (215Wh/kg)
Long cycle life with stable performance
Lightweight and compact design
Safe and reliable for high-power applications

Specifications

Parameter	Value	Conditions
Nominal Voltage	3.6V	-
Nominal Capacity	4000mAh	0.5C charge, 1C discharge, 2.75V cut-off
Minimum Capacity	3900mAh	-
Energy Density	215Wh/kg	-
Internal Resistance	≤25mΩ (AC, 1000Hz)	-
Charge Cut-off Voltage	4.20V	-
Discharge Cut-off Voltage	2.75V	-
Standard Charge Current	0.5C (2000mA)	CCCV, 4.2V, 80mA cut-off
Standard Discharge Current	1C (4000mA)	-
Max Charge Current	1C (4000mA)	45°C ≥ T ≥ 15°C
	0.5C (2000mA)	15°C ≥ T ≥ 5°C
	0.1C (400mA)	5°C ≥ T ≥ 0°C
Max Discharge Current	1C (4000mA)	60°C ≥ T ≥ 45°C
	2C (8000mA)	45°C ≥ T ≥ 35°C
	3C (12000mA)	35°C ≥ T ≥ 0°C
	1C (4000mA)	0°C ≥ T ≥ -20°C
Dimensions	21.65±0.2mm (D) × 70.95±0.2mm (H)	-
Weight	≤71g	-

Cycle Life

Test Condition	Performance
0.5C/1C charge/discharge (4.2V–2.75V)	≥80% capacity retention after 300 cycles
	≥70% capacity retention after 500 cycles

Discharge Curve

21700 Battery 4000mAh 3C Discharge 500 Cycles 3.6V

Operating Temperature Range

Mode	Temperature Range	Notes
Charging	0°C to 45°C	Optimal: 15°C–45°C
Discharging	-20°C to 60°C	Max surface temp ≤70°C during discharge
Storage	-20°C to 40°C (short-term)	Long-term storage: 10%–35% SOC at 20°C

Certifications

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

Key Features

High Power: Supports 3C continuous discharge for electric motorcycle 21700 Li-Ion Battery applications.
Safety: Built-in protections against overcharge, over-discharge, and overheating.
Durability: Robust performance in extreme temperatures and harsh conditions.

Applications

Electric motorcycles and scooters
Power tools
Energy storage systems
Medical devices

21700 Battery 4000mAh 3C Discharge 500 Cycles 3.6V

Usage Warnings & Precautions

Do not reverse charge/discharge or expose to temperatures >70°C.
Use only with compatible chargers (CCCV, 4.2V max).
Avoid mechanical damage or immersion in liquids.

Storage Guidelines

Store at 10%–35% SOC in dry conditions (0%–50% RH).
Recharge every 12 months if stored long-term.

Warranty & Disclaimer

1-year warranty for manufacturing defects.
Not liable for misuse, improper assembly, or unauthorized modifications.

Product Tags:

3C Discharge 21700 Battery

500 Cycles 3.6 V 4000mAh Battery

3.6 V 4000mAh Battery Compact

21700 Battery 4000mAh 3C Discharge 500 Cycles 3.6V Images

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