BATTERIES WIKIAll batteries21700 Li-ionSamsung INR21700-40T
Samsung INR21700-40T
Specification
| Type | Rechargeable |
| Manufacturer | Samsung |
| Technology | Li-ion |
| Form factor | 21700 |
| Capacity, mAh | 4000 |
| Capacity (Minimum), mAh | 3900 |
| High Drain | Yes |
| Contact type | Flat contact |
| Charge method | CC, CV |
| Voltage (Minimum), V | 3.6 |
| Charge voltage (Maximum), V | 4.2 |
| Discharge voltage (Minimum), V | 2.5 |
| Discharge current (Nominal), mA | 10000 |
| Discharge current (Maximum), mA | 45000 |
| Discharge current (Nominal), mA | 2000 |
| Discharge current (Maximum), mA | 6000 |
| Protected | No |
| Storage temperature, °C | from 0 to 60 |
| Charge temperature, °C | from 0 to 45 |
| Discharge temperature, °C | from -20 to 80 |
| Diameter, mm | 70.3 |
| Height, mm | 21.22 |
| Country of Origin | Korea |
| Weight, g | 70 |
| Barcode | INR21700-40T |
Measurement result
| A | mAh | Wh |
| 1 | 4000 | 14.58 |
| 2 | 3914 | 14.24 |
| 5 | 3968 | 14.17 |
| 10 | 3891 | 13.66 |
| 20 | 3834 | 13.05 |
| AC impedance, mΩ | 9 |
| Diameter, mm | 21.14 |
| Height, mm | 70.5 |
| Weight, g | 66.49 |