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 Description
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Item
Test Method
Criterion
3.1 Fully ...  More ...
Item
Test Method
Criterion
3.1 Fully Charge
(1)Standard Charge: Supply 0.2C,constant current until battery voltage reaches 4.2V, then supply a decreasing current endlessly. Charging time is 6~7 hours.
(2)Quick Charge: Supply 1.0C,constant current until battery voltage reaches 4.2V, then supply a decreasing current endlessly. Charging time is 2~3 hours.
Ambient temperature
0 ~+40℃
3.2 Capacity
(1)Within 1 hour after fully charged, discharge at 0.2C,continuously down to end voltage 2.75V.
(2)Within 1 hour after fully charged, discharge at 0.5C,continuously down to end voltage 2.75V.
more than 300 min (100%)
more than 108 min (90%)
3.3 Cycle Life
(1)A battery unit shall be repeated 300 charge/discharge cycles, charged at CC-CV（0.2C to 4.20 V）for 6~ 7 hours, discharged at 0.2C to 2.75V end voltage, After 300 cycles, discharging time is estimated as specified in paragraph 3.2(2)
more than84min (70%)
3.4 Temperature
(1)Within 1 hour after fully charged at 20℃, a battery unit is stored at -20℃. Discharge time is estimated by discharging at 0.5C ,continuously down to 2.75V end voltage.
(2)Within 1 hour after fully charged at 20℃, a battery unit is stored at 60℃. Discharge time is estimated by discharging at 0.5C ,continuously down to 2.75V end voltage.
more than 78 min (65%)
more than 102 min (85%)
3.5 Full Charged
State Storage
(1)After fully charged, stored for 10days at 60℃ and rested at room temperature for 1 hour. Discharge time is estimated by discharging at 0.5C ,continuously down to 2.75V end voltage.
(2)Then next discharge time is estimated as specified in paragraph 3.2(2).
more than 84 min (70%)
more than 96 min (80%)
3.6 Full Discharged State Storage
(1) After fully charged, discharge as specified in paragraph 3.2(2), then store for 10 days at 60℃ and rest at room temperature for 1hour. Discharging time is estimated as specified in paragraph 3.2(2).
more than 90 min (75%)
4. Safety Performance
Item
Test Method
Criterion
4.1 High Temperature Storage
After fully charged, store for 10 days at 60℃.
No rupture, fire , smoke or swell and leakage of liquid electrolyte apparently
4.2 Leak Test
After fully charged, store for 10 days at
60℃ and at humidity 70±20﹪.
No rupture, fire , smoke or swell and leakage of liquid electrolyte apparently
4.3 Drop-Test
The battery is dropped 3 times for three-dimensional face of the battery (total of 9 times dropping) from a height of 76cm on the hard wooden board.
There shall be no abnormal performance and structure or excessive deformation.
4.4 Vibration Test
Vibrate for 60 minutes to any direction with amplitude 4mm and frequency 16.7Hz.
There shall be no abnormal performance and structure or excessive deformation.
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Results : parallel
