| 1. Service out-put(load characteristics) | 
| | Continuous discharge, E.P.V:2.0V, Temp.:20¡¾2¡ÆC | 
 | Load |  | 5.6kW | 50kW |  | 2000hours | 690days | 
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| 2. Service out-put(Temperature characteristics) | 
| | 5.6kWcontinuous discharge, E.P.V.:2.0V | 
 | Temperature |  | -20¡ÆC | 20¡ÆC | 60¡ÆC |  | 1200hours | 2000hours | 1860hours | 
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| 3. Storage characteristics at high temperature(60¡ÆC, ordinary humidity) | 
| | Item | Storage periods |  | Initial | after 40 days | after 80 days |  | Off-load-voltage (V) | 3.23 | 3.29 | 3.30 |  | Internal resistance (W) | 6.5 | 10.3 | 11.1 |  | Leakage (pcs) | - | 0 | 0 |  | Service Out-put at 5.6kW Continuous discharge (hours)
 E.P.V.:2.0V
 | 2000 | 1920 | 1900 | 
 | Test temp.:20¡¾2¡ÆC, Average of 10 batteries | 
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| 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 for 80minutes. (temp.:20¡¾2¡ÆC) | 
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| 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 | 
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| 6. Charge characteristics | 
| | Charge current | Charging time | Test result |  | 1.3mA | 24hours | Appearance:No change | 
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| 7. Heat shock test | 
| | Range of temperature:-10~+60¡ÆC, 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¡¾2¡ÆC, Average of 10 batteries Measurement of internal resistance is done by 1kHz alternating current.
 Leakage proof is done by visual check.
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| 8. Vibration test | 
| | Amplitude:1.5mm, Frequency:10~55Hz, Time:X,Y,Z direction, each for 90 minutes
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 | 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.
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