When should I replace a computer

[SlugLife]

Whenever your computer doesn't do something you need or want it to do, is when you replace it.

 

[Ontwreckdiver]

So, when should I consider replacing the computer? Is it ok to dive with a 11 year old computer with a good battery?

I still dive a 23 year old Suunto Cobra and it has never given me any problems or issues, it just keeps on ticking. The old saying goes "if it isn't broke..."

 

[Tracy]

Or you could just replace the battery in it?
The company that made that computer still services it and is active on this board.

 

[Bigbella]

There is nothing fast or true about some required frequency of computer replacement -- save for serious malfunctions, such as a faulty depth sensor à la Suunto-Oy; or the occasional lock-outs which were more due to user error.

That said, I still have functional computers from circa 1992, which are fully usable, though still predated the recreational use of nitrox -- and are normally kept around as a last-ditch backup or a loan to friends whose thousand dollar Shearwater went tits-up for the third time . . .