1. Scope This product specification has been prepared to specify the rechargeable lithium-ion cell （‘cell’） to be supplied to the customer by Samsung SDI Co.， Ltd. 2. Description and Model 2.1 Description Cell （lithium-ion rechargeable cell） 2.2 Model ICR18650-26FM

　　4. Outline Dimensions See the attachment （Fig. 1） 5. Appearance 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） Ammeter and Voltmeter The ammeter and voltmeter 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.