21700 Lithium Ion Battery 4500mAh 3.6V NCM Rechargeable 3C Discharge
INR21700N45YD 3.6V 4500mAh 3C Discharge 500 Cycles
Product Name
INR21700N45YD Li-Ion Battery
Advantages
- High energy density (238Wh/kg)
- Long cycle life with stable performance
- Reliable safety features for diverse applications
Specifications
|
Item |
Specification |
|
Nominal Voltage |
3.6V |
|
Nominal Capacity |
4500mAh (min. 4400mAh) |
|
Charge Method |
CCCV, 0.5C (2250mA) to 4.2V, 0.02C (90mA) cut-off |
|
Max. Charge Current |
1C (4500mA) @ 10°C–45°C; 0.5C (2250mA) @ 0°C–10°C |
|
Max. Discharge Current |
3C (13500mA) @ 35°C–0°C; 2C (9000mA) @ 45°C–35°C; 1C (4500mA) @ 60°C–45°C or 0°C–(-20°C) |
|
Internal Resistance |
≤25mΩ (AC, 1000Hz) |
|
Dimensions |
21.65±0.2mm (D) × 70.95±0.2mm (H) |
|
Weight |
≤71g |
Cycle Life
|
Condition |
Performance |
|
0.5C/1C Charge/Discharge (4.2V–2.75V) |
≥90% capacity retention after 500 cycles |
|
≥80% capacity retention after 1000 cycles |
Discharge Curve
- 0.2C: 100% capacity
- 1C: ≥93% capacity
- 2C: ≥90% capacity
- 3C: ≥90% capacity
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Operating Temperature Range
|
Mode |
Temperature Range |
|
Charging |
0°C to +45°C |
|
Discharging |
-20°C to +60°C |
|
Storage |
-20°C to +45°C (≤3 months); -20°C to +20°C (3–12 months) |
Certifications
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Key Features
- Pink purple sleeve color for easy identification.
- Low self-discharge rate (≤85% residual capacity after 28 days at 25°C).
- Robust safety performance: withstands overcharge, short-circuit, and drop tests.
Applications
- Power tools
- Electric vehicles (EVs)
- Energy storage systems
- Portable medical devices
Usage Warnings & Precautions
- Do NOT reverse charge/discharge or expose to temperatures >70°C.
- Use only with compatible protection circuits to prevent overcharge/over-discharge.
- Avoid mechanical damage (e.g., piercing, crushing).
Storage Guidelines
- Store at 10%–35% SOC in dry conditions (0%–50% RH).
- Recharge to 10%–35% SOC every 12 months for long-term storage.
Warranty & Disclaimer
- 1-year warranty for manufacturing defects (excludes misuse or improper assembly).
- Not liable for damages caused by unauthorized modifications or non-compliant usage.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.