When storing electronic devices that use CR2032 batteries for a long time, is there a risk that the battery will leak and corrode the PCB? Does this type of battery undergo chemical reactions and changes?

Of course yes, like every battery it will corrode and can harm electronically devices.

5 hours ago, jonas778 said:

When storing electronic devices that use CR2032 batteries for a long time, is there a risk that the battery will leak and corrode the PCB? Does this type of battery undergo chemical reactions and changes?

Take the battery out if you know are not going to use something for a long time.

I have never found the 'coin' type batteries, such as CR2032, to leak, and I have some computer motherboards that are >20 years old ( I keep them for 'sentimental' reasons 😃 ).
Similarly, my key fob remote operated with a CR2032 for over 10 years, and didn't leak.

What I have had 'leakage' issues with is the tube style AA, or AAA, type batteries in my Digital multi-meters.
I have now started removing the batteries from my 'good' meters, and only keep them in the cheap Aneng meter ( which is cheap enough to be disposable ), but if I need a meter for mains, or higher, I need to replace batteries in the Fluke.

3 hours ago, MigL said:

I have never found the 'coin' type batteries, such as CR2032, to leak, and I have some computer motherboards that are >20 years old ( I keep them for 'sentimental' reasons 😃 ).
Similarly, my key fob remote operated with a CR2032 for over 10 years, and didn't leak.

What I have had 'leakage' issues with is the tube style AA, or AAA, type batteries in my Digital multi-meters.
I have now started removing the batteries from my 'good' meters, and only keep them in the cheap Aneng meter ( which is cheap enough to be disposable ), but if I need a meter for mains, or higher, I need to replace batteries in the Fluke.

That is your experience, I have another one. Old Lithiumcells get a white residue coming out the battery.

You can get these coin cells in Alkaline, Lithium and Silver Oxide chemistry in increasing order of cost and life expectancy.

The sliver oxide ones tend to be leak free and the alkaline ones the worst.

 

Is the CR2032 battery in the PS2 Slim 90000 alkaline or oxide? I think it's a Mitsubishi but I don't know if it's original

gamer87 often had similar concerns, and also had this machine. Maybe they have advice for you?

https://www.scienceforums.net/topic/124822-question-uv-plastic-and-rubber

 

https://images.app.goo.gl/RtqgCgdzHrNWMcpp9

https://images.app.goo.gl/48aDjbimwyGXnR3o8

Corrosion

Edited October 23, 20241 yr by chenbeier

It is worth noting that coin cell batteries perform two different functions and I cannot tell which one the play station uses.

 

In some applications they battery is only there as a voltage source. The current drain is negligible.

There will be little or no leakage at the end of this application.  It is used to refresh the setting  memory in computer apps (Bios) for instance.

Other equipment use coin cells as a power source. The current flow generates the chemical reactions that produce the leakage products. For instance in kitchen scales, micrometers and so on.

 

In the case of the PS2 Slim 90000 video game, this CR2032 battery is used to store the date and time. Is there a risk of it leaking and corroding the PCB?