Product Details
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℃ -20<T≤0℃: 0.05C to 4.1V 0<T≤10℃: 0.2C to 4.1V 10<T≤45℃: 0.5C to 4.2V 45<T≤60℃: 0.5C to 4.1V |
Discharge | -40℃ to 85℃ 45<T≤85℃: 2.75V (Max 1C) 0<T≤45℃: 2.75V (Max 5C) -20<T≤0℃: 2.5V (Max 3C) -40≤T≤-20℃: 2.0V (Max 1C) |
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.
Company Profile
Our Mission: Original Innovation, Power the Future!
As a high-tech enterprise specializing in the R&D and
manufacturing of lithium-ion batteries, sodium-ion batteries, and
solid-state batteries. Founded in 2020 in Shenzhen, China’s
innovation hub, we are driven by our core philosophy of "Original
Innovation & Development" , delivering sustainable,
high-performance energy solutions for global applications,
including consumer electronics, smart devices, electric vehicles,
and energy storage systems.
With dozens of proprietary patents, the accreditation of Guangdong
Provincial Eco-Friendly Lithium Battery Engineering Research
Center, and strategic collaborations with leading institutions like
National University of Singapore, Wuhan University, and Shenzhen
University, OiD continuously pushes the boundaries of battery
technology. Our products power critical infrastructure, including
high-speed rail energy storage, residential solar systems, and
defense projects, accelerating the global transition to clean
energy.
Key Strengths
- Original Innovation
- Core technologies in Li/Na-ion and solid-state batteries, backed by
inventions, utility models, and design patents.
- Joint R&D centers with top universities (e.g., Wuhan
University), enabling rapid commercialization of cutting-edge
research.
- End-to-End Energy Solutions
- 500+ customizable battery models for consumer electronics, EVs, and grid-scale storage.
- Superior performance: high energy density, fast charging, extended
cycle life, and extreme-temperature resilience
- Sustainability Commitment
- Eco-conscious materials (e.g., cobalt-free cathodes, solid
electrolytes) and processes to minimize environmental impact.
- Global Reach
- R&D Hubs: Shenzhen, Wuhan (university partnerships)
- Manufacturing: Automated production lines in Shenzhen
- Markets: Asia, Europe, North America