-SAMSUNG SDI Confidential Proprietary –
Model INR18650-15M Version No. 3.22
4. Outline dimensions
See the attachment (Fig. 1)
There shall be no such defects as scratch, rust, discoloration, leakage which
may adversely affect commercial value of the cell.
6. Standard test conditions
6.1 Environmental conditions
Unless otherwise specified, all tests stated in this specification are conducted at
temperature 25±5℃ and humidity 65±20%.
6.2 Measuring equipment
(1) Amp-meter and volt-meter
The amp-meter and volt-meter should have an accuracy of the grade 0.5 or higher.
(2) Slide caliper
The slide caliper should have 0.01 mm scale.
(3) Impedance meter
The impedance meter with AC 1kHz should be used.
7.1 Standard charge
This "Standard charge" means charging the cell with charge current
750mA and constant voltage 4.2V 100mA cut-off at 25℃.
7.2 Standard discharge capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 1500mA with 2.5V cut-off at 25℃ within 1hour
after the standard charge.
Standard discharge capacity ≥ 1,450mAh
7.3 Standard rated discharge capacity
The standard rated discharge is the discharge capacity of the cell, which is measured
with discharge current of 10A with 2.5V cut-off at 25℃ within 1hour after the standard
Standard rated discharge capacity ≥ 1,450mAh
7.3 Initial internal impedance
Initial internal impedance measured at AC 1kHz after standard charge.
Initial internal impedance ≤ 25mΩ
7.4 Temperature dependence of discharge capacity
Capacity comparison at each temperature, measured with discharge
constant current 10A and 2.5V cut-off after the standard charge is
Note: If charge temperature and discharge temperature is not the same,
the interval for temperature change is 3 hours.
Percentage as an index of the capacity at 25℃(=1,450mAh) is 100%.
7.5 Temperature dependence of charge capacity
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