A dead CMOS battery could cripple the Sony Playstation 4 in a few years

Sounds like good case of building a small device that will ensure uninterrupted supply to the real time clock. This would have to be done before PSN goes out so that the device can live indefinitely (assuming the batteries work, the console does not need servicing, and no other problem is discovered).

So a 115 millions PS4s have been sold.<p>A CMOS battery lasts about 15 years.<p>The issue arises when the PS4 APIs are not available.<p>At what point does Sony drop their APIs?<p>Is it really just &#x27;a few years&#x27;?

Sounds like an opportunity to practice replacing that battery on a few old PS4s so you can offer the replacement service in the future.

BTW, is CMOS memory still used on motherboard or embedded device?

These systems were not designed to last. Which is why I am a member of the PC Master race. I upgrade my PC to specs above video game consoles and use Steam for my games. My PC is a Steam Machine.