This part is a kind of semiconductor called CGR17360.

Function of this product has Lithium Ion Batteries.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

CGR17360 ■ Dimensions （mm） 5.0 ※Battery cell is not sold by itself to secure safety. ■ Typical discharge characteristics Max. 16.9 Voltage（V） 4.5 2.0It（1400mA） 1.0It（700mA） 0.2It（140mA） 4.0 3.5 3.0 Max. 36.0 2.5 0 100 200 300 400 500 600 700 800 Discharge capacity（mAh） 【Test condition】 Charge ： constant voltage/constant current, 4.2V Max.0.7It（490mA）, 35mA cut-off Discharge ： constant current, 3.0V cut-off Temperature ： 20℃ 5.0 ※Dimensions of a fresh battery. Voltage（V） 4.5 60℃ 45℃ 20℃ 10℃ 4.0 ■ Specifications Nominal voltage Typical capacity *1 Dimensions Diameter Height 3.7V 730mAh Max. 16.9mm Max. 36.0mm 19g 3.5 3.0 -20℃ 2.5 0 100 200 300 400 500 600 700 800 -10℃ 0℃ Discharge capacity（mAh） 【 Tes [ ... ]

CGR17360 PDF Datasheet Download