How old is your CPS2 battery?

[kebrank]

I’m sure you guys are correct about the original batteries versus modern ones however, one thing to consider is that the original ones were in arcade machines that were on many hours a day not requiring the battery to charge the board so I wonder if that just saved the batteries Longer than modern ones which are in your home board that probably gets to play once in a while.

Yes, i agree, it makes sense. In my case they were not played even once since the batteries were swapped.

 

[kebrank]

I would also like to add there is still a quality issue with these batteries. All the boards were under the same usage/storage conditions so the voltage should have been similar for all them.

 

[misiequ]

Mine two

 

[plasticfactory]

This bad boy just showed up from Yahoo. The pictures don't do justice to how bad the damage is.

19XX.

Pour one out. If anyone wants to take a stab at bringing it back to life, I'll send it to you for free.

 

[XtraSmiley]

Probably not worth the effort, but you should save the chips to transplant into one that was "phoenixed" which of course sucks.

 

[duffcon]

Xmen: Children of the Atom that still had the factory tamper labels on. I checked the battery, which still held 3.6v and was dated 93-09 (Sept. 1993!). Amazing that it was still holding on, I obviously changed it anyway. This was in 2021

 

[kazuo]

In 2021 I had something like 10 CPS2 boards that had the same Maxell batteries dated from 93 to 95, all reading ~3.6V.

Even as recently as this year, I've had CPS3 carts cross my path that had working batteries of the era, still going strong. Mostly the weird yellow Fuji batteries that I don't think have date codes, but also a few Maxells with 95 to 96 date codes.

I guess the longer they've been in service and powered on, and/or the better they are stored, the longer the batteries will last.

 

[Old baby]

There is also a Toshiba battery

 

[nem]

A friend of mine gave me a Japanese 3rd Strike cart to replace the battery on. It was still on the original battery from '97, showing 2.94V:



I've done a few CPS3 battery swaps live, so that the cart is on the board powered. However, the last one I did, something happened and the cart died (RIP Jojo).

So I decided to do this with a helper battery. Easy enough solder points.

Did the swap.

Connected the cart to the motherboard. Turned the cab on. My heart sank. Screen booted to garbage.

I powered off. Reseated the cart. Turned the cab back on.



Fuck you, Capcom. I'm too old for your shit.

 

[SchoolboyF]

A friend of mine gave me a Japanese 3rd Strike cart to replace the battery on. It was still on the original battery from '97, showing 2.94V:

Hey, owner of this specific cart here. Bought this one recently from a Japanese auction as untested along with CPS3 motherboard, cd drive, etc. Idea was to have it for parts and maybe some day have a working 3rd strike setup.

Imagine my surprise when it actually booted up to 3rd strike. Having the battery changed is a huge relief.
Can't thank you enough @nem