| (3) Shape, Dimension, Appearance |
| No change is recognized for 80minutes. (temp.:20±2°C) | |
 |
| 5. Over-discharge characteristics |
| Test method |
Test result |
| The discharge is further continued for 20days at 5.6kW load after the voltage has become less than the end-point voltage(2.0V) |
Appearance:No change |
|
|
| 6. Charge characteristics |
| Charge current |
Charging time |
Test result |
| 1.3mA |
24hours |
Appearance:No change |
|
|
| 7. Heat shock test |
| Range of temperature:-10~+60°C, Time:each for 1 hour |
| Item |
Initial |
After 100 cycles |
| Off-load-voltage (V) |
3.23 |
3.29 |
| Internal resistance (W) |
6.5 |
9.6 |
| Leakage (pcs.) |
- |
0 |
Measuring temp.:20±2°C, Average of 10 batteries
Measurement of internal resistance is done by 1kHz alternating current.
Leakage proof is done by visual check. | |
|
| 8. Vibration test |
Amplitude:1.5mm, Frequency:10~55Hz,
Time:X,Y,Z direction, each for 90 minutes |
| Item |
Initial |
After 100 cycles |
| Off-load-voltage (V) |
3.23 |
3.23 |
| Internal resistance (W) |
6.5 |
6.5 |
| Leakage (pcs.) |
- |
0 |
Average of 10 batteries
Measurement of internal resistance is done by 1kHz alternating current. | |
