Samsung INR21700-40T: High-Performance Battery for Drones and Powerful Devices
The Samsung INR21700-40T 4000 mAh - 45A battery is a cylindrical lithium-ion power cell designed for devices with high energy demands. This Samsung model combines high capacity and high current output, making it an ideal choice for professional drones, FPV quadcopters, power tools, powerful e-cigarettes, and portable equipment that requires stable power under load.
Key Advantages of Samsung INR21700 40T
- High capacity of 4000 mAh ensures longer device operation compared to standard cells.
- Maximum continuous discharge current of 35A with peak values up to 45A provides powerful pulse discharge.
- Stable voltage throughout the discharge cycle allows devices to operate efficiently even under high load.
- Low self-discharge rate during storage.
- Enhanced casing durability for reliability in field conditions.
- Effective operation at low temperatures down to -20°C.
Original Samsung INR21700-40T cells are distinguished by a balance between power and longevity. Built-in protection against overheating, overcharging, and over-discharging makes these batteries a safe choice for critical applications, including aerial photography and drone racing competitions.
Operating Recommendations
To get the most out of the Samsung INR21700 40T, adhere to temperature limits: optimal charging temperature 0 to 45 °C, operating discharge temperature -20 to 60 °C. Use smart chargers with current control (maximum 6A) and do not exceed a charging voltage of 4.2 V. With proper operation, these batteries will retain approximately 60% of their initial capacity even after 250 cycles at high discharge current.
Technical Specifications of Samsung INR21700-40T 4000 mAh (Original)
| Characteristics | Value |
|---|---|
| Manufacturer | Samsung |
| Model | INR21700-40T |
| Battery Type | Lithium-ion |
| Size | 21700 |
| Minimum Capacity | 4000 mAh |
| Nominal Voltage | 3.6 V |
| Full Charge Voltage | 4.2 V |
| Full Discharge Voltage | 2.5 V |
| Maximum Continuous Discharge Current | 35A, peak up to 45A (at heating to 80 °C) |
| Maximum Charging Current | 6A |
| Charging Temperature | 0 to 45 °C |
| Operating Temperature | -20 to 60 °C |
| Internal Resistance | < 12 mOhm |
| Dimensions | 21.22 x 70.3 mm |
| Weight | 70 g |
| Charge/Discharge Cycles | Capacity drop to 60% after 250 cycles at 35A discharge current |
Package Contents: 1 x Samsung INR21700-40T 4000 mAh – 45A Battery
This battery is recommended for users who need a reliable and powerful battery with high current output and stable operation under load. The Samsung INR21700-40T is suitable for professional tasks and intensive use in field conditions.
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