This part is a kind of semiconductor called ICR18650-30A.
Function of this product has for Lithium-ion Rechargeable Cell.
Manufacturers : Samsung
Image and pinout :
Some of the text within the PDF file :
www.DataSheet4U.net SAMSUNG SDI Confidential Proprietary. Spec. No. ICR18650-30A Version No. 0.0 SPECIFICATION OF PRODUCT for Lithium-ion Rechargeable Cell Model : ICR18650-30A November, 2007 Samsung SDI Co.,Ltd. Mobile Energy Division www.DataSheet4U.net SAMSUNG SDI Confidential Proprietary. Spec. No. 1. Scope ICR18650-30A Version No. 0.0 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 2.2 Model Cell (lithium-ion rechargeable cell) ICR18650-30A 3. Nominal Specifications Item 3.1 Nominal Capacity 3.2 Minimum Capacity 3.3 Charging Voltage 3.4 Nominal Voltage 3.5 Charging Method 3.6 Charging Current 3.7 Charging Time 3.8 Max. Char [ ... ]