This part is a kind of semiconductor called NCR18650B.

Function of this product has Lithium ion Rechargeable battery.

Manufacturers : Panasonic

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NCR18650B Standard data March, 2012 Lithium-Ion Battery Business Unit Free Datasheet http://www.datasheetlist.com/ High Capacity type IVE T A NT Cell Type NCR18650B Rated Capacity Nominal Capacity Nominal Voltage Charging Method Charging Voltage Charging Current Charging Time Ambient Temperature Weight (Max.) (D) Charge Discharge Storage TE Specification *at 20deg.C s *at 25deg.C Min.3200mAh Min.3250mAh Typ.3350mAh 3.6V Constant Current -Constant Voltage 4.2V Std.1625mA 4.0hrs. 10～+45℃ -20～+60℃ -20～+50℃ 47.5g 18.25mm *without tube 18.50mm *with tube 65.10mm *without tube 65.30mm *with tube 676Wh/l 243Wh/kg *Maximum size without tube Dimensions(Typ.) H of D Bare Cell d 64.93mm 18.2mm 7.9 mm Dimensions (Max.)* (H) Volumetric Energy Density Discharged State after Assembl [ ... ]

NCR18650B PDF Datasheet Download