This part is a kind of semiconductor called ICR18650-30B.

Function of this product has Lithium-ion Rechargeable Cell.

Manufacturers : Samsung

Image and pinout :

Some of the text within the PDF file :

-SAMSUNG SDI Confidential Proprietary – Spec. No. ICR18650-30B Version No. 1.1 SPECIFICATION OF PRODUCT for Lithium-ion Rechargeable Cell Model : ICR18650-30B Feb., 2010 Samsung SDI Co. , Ltd. Energy Business Division 0 http:// -SAMSUNG SDI Confidential Proprietary – Spec. No. ICR18650-30B Version No. 1.1 History of Revisions Date (YY.MM.DD) Rev. No Description Approved by Quality(CS) Development Proposed by 10.02.09 12.02.17 Ver. 1.0 Ver 1.1 Initial 3.3 Charge Voltage Simon Shin Steve Kim Tokio Kuwada Tokio Kuwada Mikyo Ryu 4.35 ±0.03V → 4.35 ±0.05 V 1 -SAMSUNG SDI Confidential Proprietary – Spec. No. 1. Scope ICR18650-30B Version No. 1.1 This product specification has been prepared to specify the rechargeable lithium-ion cell ('ce [ ... ]

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