The INR18650N15A20 is a 3.7V 1500mAh high-discharge 18650 lithium-ion battery designed for power tools, vacuum cleaners, and other high-load industrial applications.
It supports up to 20A continuous discharge with low internal resistance, ensuring stable output under heavy current demand.
The cell achieves 500 cycles at 15A discharge with ≥60% capacity retention, balancing power delivery and service life.
With verified performance data and multiple international certifications, this model is suitable for OEM battery packs requiring compact size, high current capability, and controlled thermal behavior.
20A continuous discharge capability for high-load applications
Low internal resistance (≤18mΩ) minimizes voltage sag and heat generation
Verified cycle life under both medium and high discharge conditions
Compact 18650 format suitable for dense battery pack configurations
Stable performance within a wide operating temperature range
Certified for global OEM and industrial supply chains
The INR18650N15A20 lithium-ion battery is developed for applications that demand high current output in a compact cylindrical format.
With a nominal voltage of 3.7V and a capacity of 1500mAh, the cell prioritizes power delivery and reliability over maximum energy storage, making it well suited for power tools, vacuum cleaners, and similar equipment.
This product is positioned for B2B, OEM, and ODM battery pack manufacturing, where consistent electrical behavior, controlled internal resistance, and predictable cycle performance are critical.
When integrated with an appropriate battery management system, the cell supports both single-cell and multi-cell configurations in industrial and portable equipment.
| 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 |
| Test Condition | Performance |
|---|---|
| 1.5A charge / 15A discharge | Capacity retention ≥60% after 500 cycles |
| 4A charge / 20A discharge | Capacity retention ≥60% after 300 cycles |
| 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 months) | -10°C to 25°C | Recoverable capacity ≥85%, recommended 20±5°C |
All performance data is obtained under controlled laboratory test conditions.
Power tools and industrial equipment
Vacuum cleaners and motor-driven appliances
Electric and hybrid vehicles (auxiliary systems)
Portable medical devices
Energy storage systems (ESS) and backup power units
Use only approved chargers and suitable battery management systems
Avoid short-circuiting, crushing, or unauthorized disassembly
Do not operate beyond specified charge and discharge limits
Stop use immediately if abnormal heating, swelling, or leakage is observed
Recommended storage state of charge (SOC): approximately 50%
Ideal long-term storage temperature: 20±5°C
Recharge to around 60% capacity every 3 months if unused
Avoid prolonged storage above 45°C or below -10°C
Warranty period: 12 months from shipment date
Warranty covers manufacturing defects under normal operating conditions
Damage caused by misuse or operation outside specifications is excluded
| Aspect | INR18650N15A20 | Standard 18650 Cell |
|---|---|---|
| Continuous Discharge | 20A | Typically 5–10A |
| Internal Resistance | ≤18mΩ | Higher and less consistent |
| Cycle Life at High Load | Verified at 15A and 20A | Often unspecified |
| Application Focus | High-power industrial use | General-purpose |
| Thermal Stability | Designed for high-load operation | Limited under high current |
Our products are sold all over the world, you can rest assured.
