So while I start the process of getting a new cmos battery. Will my laptop run without one if I remove the old one? Since a lot of you said it might leak can I remove it and still run?
Will my laptop run without one if I remove the old one?
Yes, but not the way that you want. It is what gives power to the item that keeps your current date and time, and other important settings that you don't want to set each time you start your computer.
Since a lot of you said it might leak...?
This is a possibility but is also uncommon for button batteries.
In the end, replace your battery with the same type. The battery will say on it what size it is. If you want to buy the battery before opening up your computer you can look it up by searching for the specs for your laptop.