NO.

Items

Specifications

1

Charge voltage

4.2V

2

Normal voltage

3.7V

3

Normal capacity

300mAh ,1.2A Discharge to 3.0V

Min capacity

290mAh,1.2A Discharge to 3.0V

4

Charging current

Standard charging::0.5C

Rapid charging: 1.0C

5

Standard charging method

0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.02C

6

Charging time

Standard charging:3 hours (Reference.)

Rapid charging: 1.5hours (Reference.)

7

Max charge current

1.0C

8

Max discharge current

1.2A

9

Discharge cut-off voltage

3.0V

10

Operating temperature

Charging: -10°C~45°C

Discharging: -10°C~45°C

11

Storage temperature

-10°C~ 45°C

12

Cell Weight

Approx:6.8g

13

Cell Dimension

Length : Max 60.5mm

Diameter :Max 8.3mm

NO

Items

Test Method and Condition

Criteria

1

Standard Charging

Charging the cell initially with constant current at 0.5C and then with constant voltage at 4.2V till charge current declines to 0.02C

2

Rated Capacity

The capacity means the discharge capacity of the cell, which is measured with discharge current of 1.2A till 3.0V cut-off voltage after standard charging.

≥300mAh

3

Cycle Life

Test condition:Charge: 0.5C to 4.2V

Discharge: 1.2A to 3.0V

80% or more than firstcycle capacity after 1.2A discharge.

≥300 times

4

Self-discharge

After the standard charging, store the cells under the standard environmental condition (Temperature:20±5°C,Humidity: 60±15%RH) for 28days, then measuring the capacity with 0.2C discharge till 3.0V

Residual capacity >90%

5

Initial impedance

AC resistance measured at AC 1KHz after 50% charge

≤90mW

6

Cell Voltage

Before shipment

3.95V~4.0V

7

Temperature

Characteristics

1. According to standard charging condition, charging at 20±5°C.

2. Capacity comparison at different temperature, measured with constant discharge current 0.2C till 3.0V cut-off voltage. Percentage as an index of the capacity compared with 100% at 20°C

-20°C: ≥60%

20°C: 100%

50°C: ≥85%

8

Storage

Characteristics

1. According to standard charging condition, charging at 20±5°C.

2. Storing the battery at 60±5°C for 7days and rest it at room temperature for 1 hour, then measure with constant discharge current 0.2C till 3.0V cut-off voltage.

Residual capacity

≥85%