INR18650N15A20 3.7V 1500mAh 20A 18650 Battery 500 Cycles
Product Name
INR18650N15A20 Lithium-Ion Battery
Advantages
- High energy density and robust performance for demanding applications.
- Supports high discharge rates up to 20A, ideal for power tools and vacuum cleaners.
- Long cycle life with 500 cycles at 15A discharge, maintaining ≥60% capacity.
- Compliant with multiple international certifications including UL, CB, and CCC.
Specifications
| Parameter | Details |
| Model | INR18650N15A20 |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 1500mAh |
| Charging Limit Voltage | 4.20V ±0.05V |
| Discharge Cut-off Voltage | 2.75V |
| Max Charging Current | 4.0A |
| Max Continuous Discharge Current | 20A |
| Weight | ≤45.0g |
| Dimensions | Diameter ≤18.50mm, Height ≤65.30mm |
| Volume Energy Density | 316 Wh/L |
| Weight Energy Density | 123 Wh/kg |
| Internal Resistance | ≤18mΩ |
Cycle Life
| Test Condition | Performance |
| 1.5A charge / 15A discharge cycles | Capacity retention ≥60% after 500 cycles |
| 4A charge / 20A discharge cycles | Capacity retention ≥60% after 300 cycles |
Discharge Curve

Operating Temperature Range
| Condition | Temperature Range | Notes |
| Charging | 0°C to 45°C | Max charging current: 4.0A |
| Discharging | -20°C to 60°C | Max discharge current: 20A |
| Storage (12 mo.) | -10°C to 25°C (Recoverable capacity ≥85%) | Recommended: 20±5°C |
Certifications
Key Features
- High Discharge Rate: Supports up to 20A continuous discharge, perfect for high-power applications.
- Long Cycle Life: 500 cycles at 15A discharge with ≥60% capacity retention.
- Robust Safety: Built-in protection against overcharge, over-discharge, and short circuits.
- Wide Temperature Range: Operates efficiently in temperatures from -20°C to 60°C.
Applications
- Electric vehicles and hybrid vehicles
- Power tools and industrial equipment
- Portable medical devices
- Energy storage systems (ESS)
- Emergency lighting and backup power

Usage Warnings & Precautions
- Use only approved chargers and avoid exposure to extreme temperatures.
- Do not short-circuit terminals or disassemble the battery.
- Stop use immediately if swelling, leakage, or overheating occurs.
- Dispose of spent batteries responsibly; do not incinerate or immerse in water.
Storage Guidelines
- Store at 20±5°C (ideal) with 50% SOC for long-term storage.
- Recharge to 60% capacity every 3 months if unused.
- Avoid prolonged storage at temperatures above 45°C or below -10°C.
Warranty & Disclaimer
- Warranty: 12 months from shipment date.
- Disclaimer: The manufacturer is not liable for accidents caused by misuse or deviation from specifications.