| Item |
Spec |
Remark |
| Typical capacity |
395mAh |
Discharge: 1.0CmA(380mA) |
| Minimum capacity |
380mAh |
|
| Rate |
380mAh |
Discharge: 1200mA |
| Energy |
1.41Wh |
|
| Nominal Voltage |
3.7V |
Discharge: 0.2CmA(76mA) |
| AC Impedance Resistance |
≤80mΩ |
≤80mΩ |
| Discharge Cut-off Voltage |
3.0V |
|
| Charge Voltage |
4.20V |
|
| Max. Charge Voltage |
4.23V |
|
| Charge Time |
Approx. 3.0h |
Charge: 190mA |
| Standard charge current |
76mA |
0.2CmA |
| Max. Charge Current |
380mA |
1.0CmA |
| Max. discharge current |
1200mA |
|
| Operating Temperature |
10~+45℃ |
Charge |
| Operating Temperature |
-10~+50℃ |
Discharge |
| Storage Temperature |
-10~35℃ |
Recommended storagetemperature: 20℃ |
| Dimensions |
Diameter: 13.5mm max
Length: 32.0mm max |
|
|
|
|
| Mechanical Performance |
|
|
| Item |
Measuring Procedure |
Requirements |
| Cycle Life |
Carry out 500cycle.
Charge/Discharge follow the below condition:
※ Charge: 1.0C charge to 4.2V,cut off at 10mA
※ Discharge: 1200mA discharge for 5s, then rest 10s
Cycle above discharge steps to 3.3V.
※ Rest Time between charge/discharge: 30min.
※ Temperature: 25±2℃. |
Higher than 80% of the Initial Capacity |
| Impact Test |
A cell is to be placed on the impact flat. A 56mm diameter bar is inlayed into the bottom, A 10 kg weight is to be dropped from a height of 1m onto the cell, the distortion is allowed. |
No explosion, No fire. |
| Forced Discharge |
Discharge at a current of 1C for 2.5h. |
No explosion, No fire. |
| Nail Pricking |
Prick through the sample battery with a nail having a diameter of 3mm and remain 2h. |
No explosion, No fire. |
| Vibration test |
After standard charge, the battery is to be tested as following conditions:
Amplitude: 0.19mm
Frequency: 10~55Hz (sweep: 1Hz/min)
Direction: X/Y/Z axis for 30min. The battery is to be tested in three mutually perpendicular to each axis. |
No fire, no explosion, no smoking. |
| Drop Test |
Drop the battery in the shipment condition (full- charge) from 1m height onto 18~20 mm or thicker concrete with p-tile on it 1 times each of obverse and inverse directions at 25±2℃ |
No fire, no explosion, no smoking |
| Constant Humidity and Temperature Characteristics |
Under the temperature of 20±5℃, after charging the battery with 0.2C, then put the battery into the constant temperature and humidity oven with 55±2℃ and 90～95% for 48h, the battery should be no obvious deformation, leakage, rust, smoking and explosion. After testing take out the battery then rest for 2h under the temperature of 20±5℃, discharge with 1C to 3.0V. |
discharge capacity≥60% C5 |
| Short-Circuit Test |
After standard charge, the battery is to be short-circuited by connecting the positive and negative terminals of the battery with copper wire having a maximum resistance load of 0.1Ω. |
No explosion, no fire. The temperature of the exterior cell casing shall not exceed 160℃. |
| Heating Test |
A battery is to be heated in a gravity convection or circulating air oven. The temperature of the oven is to be raised at a rate of 5±2℃/min to a temperature of 130±2℃ at which temperature the oven is to remain for 30 minutes before the test is discontinued. |
No explosion, no fire. |
| Abnormal Charging Test |
After standard charge, the battery is subjected to a charging current by connecting it to a dc-power supply. The beginning current is 3.0C, which is to be obtained by connecting a resistor of specified size and rating in series with the battery; the voltage of the dc-power supply is 4.6V. The test time is 2.5 hours. |
No explosion, no fire. |
| Over-discharge Test |
The fully discharged cell is continually discharged for 24h with the (30×n) Ω load at 23±2℃. |
No explosion, no fire. |
| High Temperature Characteristics |
Within 2h leave the battery in Constant Temperature ＆ Constant Humidity Box which temperature is 55±2℃ after fully charge, discharge at 1C to 3.0V. The discharge time is required ≥51min |
no deformation and smoking |
| Low Temperature Characteristics |
After fully charge, leave the battery in Constant temperature & constant Humidity box which temperature is -10±2℃ for 16-24h, discharge at 0.2C to 3.0V. The discharge time is required ≥3h |
no deformation and smoking |
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