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Friday, 31 January 2020

Do You Have To Match A CMOS/BIOS Battery Exactly?

The short answer is as long as it's the same voltage and you're not replacing a rechargeable version with a non-rechargeable version then it should be fine - as long as it fits that is!

The other day I had a retro laptop that had a dead CR2330 in it and after looking through my (ever growing) collection of new batteries I had everything but the one I wanted!


Thankfully the one I needed to replace was on a lead rather than having to fit in to a socket so I could change it for a similar size battery of the same voltage (3V) as the numbers that make up the battery code are basically its circumfrance and thickness.


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