INR18650R25SS 3.6V 2500mAh 20A High-Power 18650 Lithium-Ion Battery
The INR18650R25SS lithium-ion cylindrical cell is a 3.6V 2500mAh high-rate 18650 battery designed for electric tools and other high-power applications requiring stable performance under continuous heavy load. It supports 20A continuous discharge, delivers ≥500 cycles at 80% capacity retention, and maintains reliable operation from -20°C to 60°C. With low internal resistance, robust structure, and internationally recognized certifications, this cell is suitable for professional equipment, industrial OEM integration, and power systems where safety and durability are critical.
Key Advantages
- Designed for high-power applications with 20A continuous discharge capability
- Stable lifecycle performance, supporting ≥500 cycles under standard test conditions
- Low internal resistance (≤18mΩ) enabling efficient current delivery and reduced heating
- Wide operating temperature range ensuring reliability in demanding working environments
- Certified and compliant with UN38.3, UL, IEC/CE, KC, RoHS, and MSDS standards
- Suitable for OEM engineering integration, supporting consistent electrical behavior and predictable design performance
Product Specifications
| Model | INR18650R25SS (18650-25R) |
| Chemistry | Lithium-Ion |
| Nominal Voltage | 3.6V |
| Capacity | 2500mAh |
| Standard Charge Current | 0.2C (500mA) |
| Max Charge Current | 1C (2500mA) |
| Max Continuous Discharge Current | 20A |
| Discharge Cut-off Voltage | 2.5V |
| Charge Cut-off Voltage | 4.2V |
| Internal Resistance | ≤18mΩ |
| Weight | 45g |
| Dimensions | 18mm * 65mm (Diameter * Height) |
Cycle Life
| Standard Cycle (0.2C) | ≥500 cycles (≥80% capacity retention) |
Operating Temperature Range
| Charging | 0°C to 45°C |
| Discharging | -20°C to 60°C |
| Storage | -20°C to 50°C |
Certifications
UN38.3, KC, UL, IEC/CE, RoHS, MSDS
Performance & Reliability
- 20A continuous discharge validation confirming suitability for high-load electric applications
- Thermal stability performance verified under extended discharge conditions
- Cycle reliability maintaining ≥80% capacity after ≥500 standard charge-discharge cycles
- Structural durability supporting vibration, handling, and assembly environments
- Global compliance safety tested, ensuring safe logistics, handling, and integration
Applications
- Electric tools (drills, saws, screwdrivers, grinders)
- High-power handheld devices
- Industrial portable equipment
- High-drain flashlights and specialty lighting
- Vaping and power-demanding consumer devices
- OEM battery packs and power modules
Usage Warnings & Precautions
- Do not exceed the specified charging or discharging current
- Avoid short-circuiting the terminals
- Do not immerse in water or expose to excessive moisture
- Use within defined temperature limits
- Install in properly designed battery packs with suitable protection systems
Storage Guidelines
- Store at 30-50% state of charge
- Recommended storage in a cool, dry environment ≤50°C
- Recharge at least once every 6 months for long-term storage
- Avoid prolonged exposure to direct sunlight or heat sources
Warranty & Disclaimer
12-month warranty against manufacturing defects from shipment date. Warranty does not cover misuse, improper installation, or unauthorized modification. Final performance depends on actual application design and operating conditions.
Comparison vs Standard 18650 Cells
| Aspect |
INR18650R25SS |
Generic 18650 Cell |
| Discharge Capability |
20A continuous |
Typically 5-10A |
| Cycle Life |
≥500 cycles |
Typically lower |
| Internal Resistance |
≤18mΩ |
Higher and unstable |
| Temperature Range |
-20°C to 60°C |
Often limited |
| Certifications |
Full international certification |
Often partial |
| Application Focus |
Professional and industrial |
General consumer use |
Product Images
