| Model |
DL21700-4500mAh |
Internal Resistance(Max, at 1000Hz.) |
≤ 23mΩ |
| Shell Material |
Nickeled Steel |
Standard Charge Methods（CC/CV） |
0.2 C5A X 6.5hrs |
| Nominal capacity（0.2C） |
4500mAh |
High Speed Charge Methods（CC/CV） |
0.5 C5A X 2.5hrs. |
| Nominal Voltage |
3.7V |
Charge Operation Temperature |
0°C 〜 45°C |
| Max Charge Voltage |
4.2V |
32°F〜113°F |
| Discharge cut-off voltage |
2.75V |
Discharge Operation Temperature |
-20°C 〜55°C |
| Max charge current |
0.5C |
-4°F 〜 140°F |
| Discharge Current(continuous) |
2C |
Storage Operation Temperature |
-20 °C 〜45 °C |
| Max Discharge Current (5s) |
3C |
-4°F〜113°F |
| Battery Diameter(Shell) |
21.7 ± 0.3 mm |
Cycle life |
Capacity ≥ 80% of Nominal capacity |
| Battery High(Shell) |
70.5 ± 0.3mm |
Testing Method |
Measure the initial state and initial capacity of the battery, and |
| Battery Weight（Approx.） |
69.8 g |
|
the final state of the battery after 300 cycles of 0.5C / 0.5 C. |
