Samsung 40T 21700 4000mAh 35A Battery 3.6V Lithium Ion Battery Cell INR21700-40T
Samsung INR21700-40T 4000mAh Advantages
1. Large Capacity: At 4000mAh, it provides ample energy storage, making it ideal for high-demand devices and applications.
2. High Discharge Capability: With a maximum continuous discharge rate of 35A, it is well-suited for high-drain devices, ensuring reliable performance in demanding situations.
3. Reliable Voltage: Operating at a nominal voltage of 3.6V, it ensures stable power delivery across various applications.
4. Durability: Designed for a long cycle life, this battery can withstand numerous charge and discharge cycles, reducing the frequency of replacements.
5. Integrated Safety Features: Equipped with protections against overcharging, overheating, and short circuits, it promotes safe usage in various environments.
6. Wide Range of Applications: Ideal for electric vehicles, power tools, and other high-performance electronics, it offers versatility in its use.
7. Efficient Self-Discharge Rate: Maintains charge effectively over time, making it suitable for devices that may be stored for extended periods. |
Samsung INR21700-40T 4000mAh Nominal Specifications
| Model | INR21700-40T |
| Standard Discharge Capacity | Min. 4,000mAh
- Charge: 0.5C(2A), 4.20V, 0.05C(200mA) cut-off @ RT
- Discharge: 0.2C(800mA), 2.5V cut-off @ RT |
| Rated Discharge Capacity | Min. 3,900 mAh
- Charge:1.5C(6A), 4.20V, 0.025C(100mA)cut-off @RT
- Discharge: 10A, 2.5V cut-off @ RT |
| Nominal Voltage | 3.6V |
| Standard Charge Method | CCCV, 2A, 4.20 V, 200mA cut-off |
| Rated charge | CCCV, 6A, 4.20 V, 100mA cut-off |
| Discharge Cut-off Voltage | 2.5V |
Max. continuous discharge
(Surface temperature) | 35A(Without temperature cut)
45A(With 80℃ temperature cut) |
| Cycle Life | Capacity ≥ 2,400mAh @ after 250 cycles (60% of the standard capacity @ RT) - Charge : 6A, 4.20V, CCCV 100mA cut-off @ RT
- Discharge: 35A , 2.5V cut-off @ RT |
Operating temperature
(Ambient) | Charge : 0 to 45℃
Discharge: -20 to 60℃ |
| Operating Temperature (Surface) | Charge, 0°C ~ 50°C (recommended recharge release < 45℃) |
| Discharge, -20°C~80°C (must re-discharge release < 60℃) |
| Weight | 70.0g max |
| Cell Dimension | Hight: 70.30mm(Max); Diameter: 21.22mm(Max) |
| Storage Environment | 1 year: 0~25℃ ≤70%RH |
| 3 months: 0~45℃ ≤70%RH |
| 1 month: 0~65℃ ≤70%RH |
| Warranty | 12 months |
| Samsung [INR21700-40T]_Cell Specification.pdf |
| Outline Dimensions: 
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Samsung INR21700-40T 4000mAh Applications
| The characteristics of cylindrical li-ion battery are high energy density, long life, low self-discharge, fast charging, good safety and adaptability, therefore, it is widely used in electric tools, electric vehicles, portable electronic products and other fields. |
Our Service
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4). Quick reply and action,
5). Competitive price, good sale and after-sales service.
