If only it were that easy Jimbo, a BIOS password will be stored on the BIOS chip which won't depend on the battery to retain its data
From memory, I can't remember if it's possible to clear the BIOS using a set of pins with a jumper, it's been a while for me messing with the BIOs, etc but I'm sure machines in the past few years are built not to bypass the password in the same way these used to !
I don't doubt your word for a moment Marko but there is a lot of advice across the net to the contrary... this excerpt from July, 2011:
Remove BIOS battery. Removing the CMOS battery like the one shown in the picture to the right will cause the system to lose all CMOS settings including the password. Take the battery away for 15-30 minutes or more, and then put it back and the data contained into the BIOS memory should be volatilized.
You are most likely correct mate but I'm a great believer in trying the simplest/safest possibilities first.