How long do CMOS batteries last in a PC?

The CMOS battery is an essential component of your PC that you're not likely to think about until it fails, but how long can you expect it to last?
GameSpot

PlayStation 5 CMOS Battery Issue Reportedly Fixed Now, Ensuring Game Functionality

GameSpot may receive revenue from affiliate and advertising partnerships for sharing this content and from purchases through links. When the CMOS battery in your PlayStation 5 eventually dies, you ...
SlashGear

How To Clear Your Computer's CMOS

Not all computer troubleshooting can be handled within your operating system or by troubleshooting specific components. Some key computer functions are governed by the CMOS (Complementary ...
PC Magazine

CMOS battery

A battery that maintains the time, date, hard disk and other configuration settings in the CMOS memory. CMOS batteries are small and are attached directly to the motherboard. See BIOS setup and ...

Desktop wouldn't boot, the cause was a 0.7V coin battery

The results of yesterday's repair. I had planned to spend the weekend repairing, but I was invited to the park and practiced ...
PlayFront

New PS5 Slim 2026: Model revision simplifies CMOS battery replacement

Starting in September 2026, the CMOS battery can be replaced without disassembling the motherboard, just like on the PS5 Pro.