I have a work station with CMOS battery issues, How do I get the part number for order?

[kwevianane]

I am having a work station Z 8  with CMOS battery issues. The machine is still under warranty. How can I get the part number to order for a new?

Thanks 

[DGroves · Accepted solution]

the cmos battery will have a number etched on it like this example: "CR02" that's the number you use to get a exact replacement

however if the unit is under HP warranty, call your local HP rep as they should cover this in most cases