The INR18650N20A20 is a 3.7V 2000mAh high-discharge 18650 lithium-ion battery designed for power tools, industrial equipment, and high-load portable devices.
It delivers up to 20A continuous discharge with low internal resistance, supporting stable output under demanding current profiles.
The cell achieves 400 cycles at 10A discharge with ≥80% capacity retention, balancing power density and service life.
With a wide operating temperature range and multiple international certifications, this model is suitable for OEM battery pack designs requiring reliability, safety, and consistent high-current performance.
20A continuous discharge capability for high-power equipment
Low internal resistance (≤18mΩ) reduces voltage drop and heat buildup
Proven cycle life under both medium and high current conditions
High volumetric and gravimetric energy density for compact pack design
Stable performance across a wide temperature range from -20°C to 75°C
Certified for global OEM supply chains (UL, CB, CCC, KC, BSMI, BIS)
The INR18650N20A20 lithium-ion battery is engineered for applications that require sustained high discharge currents without compromising reliability or safety.
With a nominal voltage of 3.7V and a capacity of 2000mAh, it provides a balanced solution for systems where power output is more critical than maximum energy storage.
This cell is intended for B2B, OEM, and ODM battery pack manufacturing, particularly in power tools, industrial devices, portable medical equipment, and energy storage subsystems.
Its electrical characteristics, cycle performance, and thermal tolerance make it suitable for both single-cell and multi-cell pack configurations when integrated with appropriate battery management systems.
| Parameter | Details |
|---|---|
| Model | INR18650N20A20 |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 2000mAh |
| 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 | 422 Wh/L |
| Weight Energy Density | 164 Wh/kg |
| Internal Resistance | ≤18mΩ |
| Test Condition | Performance |
|---|---|
| 2A charge / 10A discharge | Capacity retention ≥80% after 400 cycles |
| 4A charge / 20A discharge | Capacity retention ≥70% after 200 cycles |
| Condition | Temperature Range | Notes |
|---|---|---|
| Charging | 0°C to 50°C | Max charging current: 4.0A |
| Discharging | -20°C to 75°C | Max discharge current: 20A |
| Storage (12 months) | -10°C to 25°C | Recoverable capacity ≥85%, recommended 20±5°C |
All data is obtained under controlled laboratory test conditions.
Power tools and industrial equipment
Garden tools and vacuum cleaners
Portable medical and diagnostic devices
Energy storage systems (ESS)
Emergency lighting and backup power units
Use only approved chargers and compatible battery management systems
Avoid short-circuiting, mechanical damage, or unauthorized disassembly
Do not operate beyond specified charge or discharge limits
Discontinue use immediately if swelling, leakage, or abnormal heating occurs
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 50°C or below -10°C
Warranty period: 12 months from shipment date
Warranty covers manufacturing defects under normal use conditions
Performance degradation caused by misuse or operation outside specifications is excluded
| Aspect | INR18650N20A20 | Standard 18650 Cell |
|---|---|---|
| Continuous Discharge | 20A | Typically 5–10A |
| Internal Resistance | ≤18mΩ | Higher and less consistent |
| Cycle Life at High Load | Verified at 10A and 20A | Limited data |
| Temperature Tolerance | -20°C to 75°C | Narrower range |
| Application Focus | High-power industrial use | General-purpose |
Our products are sold all over the world, you can rest assured.
