18650 3.6V 2000mAh Low Temperature Li-Ion Battery -40℃ to 85℃
Product Name
18650 Cylindrical Lithium-Ion Rechargeable Battery (Model: INR18650L30T20)
Advantages
Superior low-temperature performance with reliable discharge at -40℃ and stable charging at -20℃. Features 2000mAh capacity, 3.6V nominal voltage, 5C (9750mA) continuous discharge current, and 500-cycle life. Wide operating temperature range makes it ideal for cold-environment applications, similar to 21700 Li-Ion Battery standards.
Specifications
|
Item |
Value |
|
Standard Capacity |
2000mAh (Min: 1950mAh) |
|
Nominal Voltage |
3.6V |
|
End of Discharge Voltage |
2.75V |
|
Discharge Cut-off Voltage |
1.8V |
|
Limited Charge Voltage |
4.2V |
|
Maximum Continuous Charge Current |
1C (1950mA) at 25±2℃ |
|
Maximum Continuous Discharge Current |
5C (9750mA) at 25±2℃ (thermal cutoff at 90℃) |
|
Weight |
Approx. 42g |
Cycle Life
|
Condition |
Cycles |
Capacity Retention |
|
0.5C charge/discharge at 25±2℃ |
500 cycles |
≥70% (discharge time ≥210 minutes) |
Discharge Curve
Operating Temperature Range
|
Operation |
Temperature Range |
|
Charge |
-20℃ to 60℃ |
|
Discharge |
-40℃ to 85℃ |
|
Storage (≥60℃: max charge voltage ≤4.05V) |
-40℃ to 85℃ (15 days); -40℃ to 60℃ (30 days); -20℃ to 45℃ (3 months); -20℃ to 25℃ (12 months) |
Certifications
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Key Features
- Exceptional low-temperature performance at -40℃ discharge and -20℃ charging
- 2000mAh capacity with 3.6V nominal voltage for consistent power delivery
- 5C (9750mA) continuous discharge current with 90℃ thermal protection
- 500-cycle life at 0.5C with ≥70% capacity retention
- Wide operational temperatures matching 21700 Li-Ion Battery applications in cold environments
Applications
Cold-weather electronics, outdoor equipment, industrial tools, energy storage systems for frigid regions, and low-temperature Li-Ion Battery applications. Suitable for devices requiring reliable performance in -40℃ conditions, such as medical equipment and remote sensors.
Usage Warnings & Precautions
- Do not charge below -20℃ or discharge below -40℃.
- Use specified chargers and follow 4.2V charge limit.
- Avoid short circuits or exposure to temperatures exceeding 90℃ during discharge.
- Prevent immersion in water, fire, or physical damage in cold environments.
Storage Guidelines
- Store in a dry, ventilated area below 35℃ (humidity <75%) to maintain low-temperature performance.
- Long-term storage at -20℃ to 25℃ (0-12 months) ensures optimal capacity recovery.
Warranty & Disclaimer
1-year warranty covers defects affecting low-temperature performance or manufacturing flaws. Performance data is validated under standard conditions; actual results may vary by application.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

