21700 Battery 4000mAh 3C Discharge 500 Cycles 3.6V
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
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
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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.