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Shenzhen Jianheng Technology Co., Ltd.
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INR21700N40A40 3.7V 4000mAh 40A 300 Cycles 21700 Battery
Product Name
INR21700-4000-3.7 21700 Battery
Advantages
Specifications
| Parameter | Value |
| Model | INR21700N40A40 |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 4000mAh |
| Charging Voltage | 4.20V ± 0.05V |
| Discharge Cut-off Voltage | 2.50V |
| Max Charging Current | 6.0A |
| Max Continuous Discharge Current | 40A |
| Weight | ≤68.0g |
| Dimensions | Diameter: ≤21.30mm, Height: ≤70.40mm |
| Internal Resistance | ≤15mΩ |
| Energy Density | Volume: 590Wh/L, Weight: 218Wh/kg |
| Terminal Type | Standard 21700 flat top or button top (customizable) |
Cycle Life
| Condition | Cycles | Capacity Retention |
| 4A Charge / 20A Discharge | 300 | ≥60% |
| 4A Charge / 30A Discharge | 200 | ≥60% |
Discharge Curve
Operating Temperature Range
| Condition | Temperature Range |
| Charging | 0°C to 50°C |
| Discharging | -20°C to 75°C |
| Storage | -20°C to 45°C (recommended for long-term storage) |
Certifications
Key Features
Applications
Usage Warnings & Precautions
Storage Guidelines
Warranty & Disclaimer