Low Temperature 18650 Lithium-ion Battery Cell | 2600mAh 3.6V
Product Introduction
The Low Temperature 18650 Lithium-ion Battery Cell (3.6V 2600mAh) is a high-reliability cylindrical power solution engineered for cold-environment performance. Built with premium lithium-ion (Li-ion) chemistry optimized for low temperatures, this 18650 lithium-ion battery cell combines a 2600mAh high capacity with a stable 3.6V nominal voltage, ensuring consistent power output even in frigid conditions.
Unlike standard 18650 Li-ion battery cells, it integrates anti-cold electrolyte formulas and precision cell structure design, eliminating performance drops in extreme cold. With rigorous safety testing (puncture, short-circuit, and low-temperature endurance) and a focus on long-term reliability, this 18650 lithium-ion battery cell meets the demands of devices requiring stable power in -40~55℃ environments—from outdoor electronics to industrial sensors and portable equipment.
Technical Specifications
| Category | Parameter | Value |
|---|---|---|
| Basic Parameters | Nominal Voltage | 3.6V |
| Rated Capacity | 2600mAh (2.5~4.2V per cell) | |
| Cell Type | Cylindrical 18650 Lithium-ion | |
| Size (Diameter x Height) | 18mm x 65mm ±0.5mm | |
| Electrical Performance | Charging Method | CC/CV |
| Standard Charging Current | 1.3A (0.5C) | |
| Maximum Charging Current | 2.6A (1.0C, 25℃) | |
| Charging Cut-off Voltage | 4.2V per cell | |
| Discharge Cut-off Voltage | 2.5V per cell | |
| Charge/Discharge Efficiency | >90% (0.2C@25℃) | |
| Operating Conditions | Charging Temperature Range | 0~45℃ |
| Discharge Temperature Range | -40~+55℃ | |
| -40℃ Discharge Capacity Retention | ≥60% (0.5C discharge) | |
| Storage Temperature Range | -20~+45℃ (6 months) | |
| Safety & Reliability | Safety Certifications | UN38.3, IEC62133 |
| IP Rating (Cell Level) | IP54 |
Core Features
1. Low-Temperature Optimization for Extreme Environments
This 18650 lithium-ion battery cell is specially formulated to overcome cold-weather limitations:
- Anti-Cold Electrolyte: Reduces electrolyte viscosity at low temperatures (-40℃), ensuring ion flow and avoiding sudden power cuts in freezing conditions.
- Low-Temp Capacity Retention: Retains ≥60% capacity at -40℃ (0.5C discharge), outperforming standard 18650 Li-ion cells (which often fail below -20℃).
- Consistent Discharge: Maintains stable voltage output across -40~55℃, critical for devices like outdoor sensors, portable tools, or cold-region electronics.
2. High Capacity & Long Cycle Life
Designed for long-term usability, the 2600mAh 18650 lithium-ion battery cell offers:
- Extended Runtime: 2600mAh capacity supports devices (e.g., flashlights, small appliances) for hours of continuous use.
- 1000+ Charge-Discharge Cycles: Retains ≥80% capacity after 1000 cycles, reducing replacement frequency and total cost of ownership.
3. Rigorous Safety & Durability
Built to industrial standards, the 18650 lithium-ion battery cell ensures reliability:
- Comprehensive Safety Tests: Passes puncture, short-circuit, overcharge, and low-temperature endurance tests—eliminating thermal runaway risks in cold or harsh use.
- Robust Cell Construction: Thickened nickel-plated steel casing resists impact and corrosion, suitable for portable or industrial equipment.
4. Industry-Standard Compatibility
As a cylindrical 18650 lithium-ion cell, it offers seamless integration:
- Universal 18650 Form Factor: Fits 18650-compatible battery holders, packs, and devices (no custom modifications needed).
- 3.6V Standard Voltage: Matches the power requirements of most consumer and industrial devices using 18650 Li-ion cells.
Application Scenarios
The Low Temperature 18650 Lithium-ion Battery Cell (3.6V 2600mAh) powers devices requiring cold-resistance and reliability:
- Outdoor Electronics: Flashlights, GPS trackers, camping lanterns, and portable radios used in winter or high-altitude environments.
- Industrial Sensors: Temperature, pressure, or humidity sensors deployed in cold storage, polar research stations, or outdoor industrial sites.
- Portable Tools: Cordless screwdrivers, small drills, or inspection cameras used in construction, mining, or cold-region maintenance.
- Emergency Equipment: Portable medical devices (e.g., small oxygen concentrators) or backup power modules for outdoor emergency scenarios.
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