I have yet to do so, on any laptop. Even ones that are 10 years old. Having them already have a battery pretty much makes that coin battery get VERY light use. I guess.

After changing the CMOS battery, if your Windows computer doesn't boot or start, follow these suggestions to fix the issue successfully. Test the CMOS battery voltage first.

How to Install a CMOS Battery in a Gateway Laptop. The complementary metal-oxide semiconductor, or CMOS, stores the system date and time as well as other settings on your Gateway laptop.

CMOS battery is a piece of hardware that powers the BIOS firmware in a laptop. Even when your computer is not plugged into a power source, BIOS must continue to function (It instructs the system ...

If you're getting errors when you boot your PC, the problem may be nothing more than a dead CMOS battery. Fortunately, they're cheap and easy to replace--on desktops, anyway.

Some laptop models, especially slim devices, 2-in-1 models, ultrabooks, premium laptops, and MacBooks, do not have a CMOS battery on the mainboard at all. Instead, they use the main battery to ...

Pawing through the Dell website, he pointed me to a page displaying a muddy picture of a battery that looked different from what was in my computer. But this item miraculously listed my laptop ...