| 1. Service out-put(load characteristics) |
| Continuous discharge, E.P.V:2.5V, Temp.:20±2°C |
| Load |
| 4.7kW |
15kW |
30kW |
| 829hours |
3138hours |
6314hours |
|
 |
| 2. Service out-put(Temperature characteristics) |
| 15kWcontinuous discharge, E.P.V.:2.5V |
| Temperature |
| -20°C |
20°C |
60°C |
| 1450hours |
3138hours |
3055hours |
|
|
| 3. Storage characteristics at high temperature(60°C, ordinary humidity) |
| Item |
Storage periods |
| Initial |
after 40 days |
after 80 days |
| Off-load-voltage (V) |
3.237 |
3.276 |
3.279 |
| Internal resistance (W) |
5.1 |
7.0 |
7.9 |
| Leakage (pcs) |
0 |
0 |
0 |
Service Out-put at 15kW
Continuous discharge (hours)
E.P.V.:2.5V |
3138 |
- |
- |
| Test temp.:20±2°C, Average of 10 batteries | |
|
| 4. Short circuit characteristics |
| (1) Temperature of battery surface | 
| (2) Change of off-load voltage after short circuit | 
| (3) Shape, Dimension, Appearance |
| No change is recognized after 80minutes. (temp.:20±2°C) | |
|
| 5. Over-discharge characteristics |
| Test method |
Test result |
| The discharge is further continued for 20days at 4.7kW load after the voltage has become less than the end-point voltage(2.5V) |
Appearance:No change |
|
|
| 6. Charge characteristics |
| Charge current |
Charging time |
Test result |
| 0.68mA |
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) |
3.213 |
3.244 |
| Internal resistance (W) |
4.7 |
4.6 |
| 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) |
3.243 |
3.243 |
| Internal resistance (W) |
4.9 |
5.0 |
| Leakage (pcs.) |
- |
0 |
Average of 10 batteries
Measurement of internal resistance is done by 1kHz alternating current. | |
