How does it look a CMOS battery in Laptop Dell Insp 8200?

[mifemi1]

How does it look a CMOS battery in a Laptop Dell Insp 8200 or how do I reconize it?

 

[WR2]

Silver and round.

How to Get to CMOS on a Dell Inspiron 8200
http://www.ehow.com/how_5513345_cmos-dell-inspiron.html

 

[WR2]

It might also look like this.