21700 5000mAh 3.6V NCA Battery -40°C to 60°C 800 Cycles
INR21700L50JH 3.6V 5000mAh 3C Discharge 800 Cycles
Product Name
INR21700L50JH Li-Ion Battery
Advantages
- High energy density (253Wh/kg)
- Excellent low-temperature performance
- Long cycle life
- Robust safety features
Specifications
|
Item |
Specification |
|
Nominal Voltage |
3.6V |
|
Nominal Capacity |
5000mAh (min. 4950mAh) |
|
Energy Density |
253Wh/kg |
|
Charge Cut-off Voltage |
4.20V |
|
Discharge Cut-off |
2.50V |
|
Standard Charge |
0.5C (2500mA), CCCV, 4.2V, 0.02C (100mA) cut-off |
|
Standard Discharge |
1C (5000mA) |
|
Max Charge Current |
1C (5000mA) @ 15–45°C · 0.5C (2500mA) @ 5–15°C · 0.1C (500mA) @ 0–5°C |
|
Max Discharge Current |
3C (15A) @ 15–35°C · 2C (10A) @ 0–15°C · 1C (5A) @ -20–0°C · 0.5C (2.5A) @ -30–-20°C |
|
Internal Resistance |
≤25mΩ (AC, 1kHz) |
|
Dimensions |
21.65±0.2mm (D) × 70.95±0.2mm (H) |
|
Weight |
≤73g |
Cycle Life
|
Condition |
Performance |
|
0.5C/1C Charge/Discharge (4.2–2.75V) |
≥70% of initial capacity after 800 cycles |
Discharge Curve
Operating Temperature Range
|
Operation |
Temperature Range |
Notes |
|
Charging |
0°C to +45°C |
Reduced current at low temperatures |
|
Discharging |
-40°C to +60°C |
Capacity drops below -20°C |
|
Storage |
-20°C to +40°C (≤3 months) · -20°C to +20°C (≤12 months) |
Store at 10–35% SOC for long-term |
Certifications
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Key Features
- Low-Temperature Optimized: Maintains ≥60% capacity at -40°C (0.2C discharge).
- High Discharge Efficiency: ≥90% at 2C rate (room temperature).
- Safety Compliance: Passes overcharge, short-circuit, drop, and thermal tests.
Applications
- Power tools
- Electric vehicles (EVs)
- Energy storage systems
- Medical devices
- Industrial equipment
Usage Warnings & Precautions
- Do NOT reverse charge/discharge or expose to temperatures >70°C.
- Use protective circuits to prevent overcharge (>4.2V/cell) or over-discharge (<2.5V/cell).
- Avoid mechanical damage (puncture, crush).
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 from unauthorized modifications or non-compliant chargers.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.