3.6V 4000mAh 21700 Lithium Ion Battery 45A Discharge
INR21700D40JH 3.6V 4000mAh 45A Discharge 500 Cycles
Product Name
INR21700D40JH High-Rate Lithium-Ion Battery Cell
Advantages
- Optimized for high-power applications like electric vehicle 21700 Li-Ion Battery Cell systems.
- Ultra-low internal resistance (≤15mΩ) for efficient energy delivery.
- Robust safety performance under extreme conditions.
Specifications
|
Parameter |
Value |
Conditions |
|
Nominal Voltage |
3.6V |
- |
|
Nominal Capacity |
4000mAh |
0.5C charge (2A), 1C discharge (4A), 2.5V cut-off |
|
Minimum Capacity |
3900mAh |
- |
|
Internal Resistance |
≤15mΩ (AC, 1000Hz) |
- |
|
Charge Cut-off Voltage |
4.20V |
- |
|
Discharge Cut-off Voltage |
2.5V |
- |
|
Max Charge Current |
6A |
45°C ≥ T > 15°C |
|
3A |
15°C ≥ T ≥ 0°C |
|
|
Max Discharge Current |
45A |
80°C cut-off |
|
Operating Temperature |
Charge: 0°C to 45°C |
Discharge: -20°C to 60°C |
|
Cell Surface Temperature |
Charge: ≤50°C |
Discharge: ≤80°C |
|
Dimensions |
21.65±0.2mm (D) × 70.95±0.2mm (H) |
- |
|
Weight |
≤71g |
- |
Cycle Life
|
Test Condition |
Performance |
|
4A/20A charge/discharge (4.2V–2.5V) |
≥70% capacity retention after 500 cycles (80°C cut-off) |
|
4A/30A charge/discharge (4.2V–2.5V) |
≥70% capacity retention after 300 cycles (80°C cut-off) |
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 ≤80°C during discharge |
|
Storage |
-20°C to 40°C (short-term) |
Long-term: 10%–35% SOC at 20°C |
Certifications
- Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Key Features
- High-Rate Performance: Supports 45A continuous discharge for electric vehicle 21700 Li-Ion Battery Cell systems.
- Safety: Protections against overcharge, over-discharge, and overheating.
- Durability: Reliable operation in extreme temperatures (-20°C to 80°C).
Applications
- Electric vehicles (EVs) and hybrid systems
- High-power tools
- Energy storage systems
Usage Warnings & Precautions
- Do not exceed 4.2V charge voltage or 2.5V discharge cutoff.
- Avoid temperatures >80°C during discharge.
- Use only with compatible CCCV chargers (4.2V max).
Storage Guidelines
- Store at 10%–35% SOC in dry conditions (0%–50% RH).
- Recharge every 12 months for long-term storage.
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.