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.

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 ...

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.

Does anyone have experience with finding/replacing a CMOS battery in an older Dell laptop. I have almost completely gutted the thing but am having troubles locating this battery.

First symptom of failing CMOS battery is loss of accurate time. If CMOS power switched from batt to DC-Pwr after boot, then systems which are powered 24/7 wouldn't have a clock problem when the ...