17 year old CPS2 Battery (and it's still good!)

Broodwich

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So i finally got a new iron and got around to doing my first CPS2 battery change today. I've had my batteries for a couple months and was just waiting on a better soldering station.

I did my AvP boardset first as i've had it since 2003/2004 and i have never changed the battery on it. the little sticker on the outside said that it was last changed 6/9/94 (i'd been super worried that it would fail before i got to changing it).

Everything was a success and looking at the battery it's a good chance that it was from 94'!!! (easiest arcade related project i've ever done).

Here's a pic of the Maxell Battery i removed with 94-01 printed on it :D

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Wow, that's cool. I've come across a couple of CPS2 boards where the battery was never replaced. I think it just depends on how much play it got and how well it was stored. Or it's just dumb luck. :)
 
replacing it was an absolute joke (the stickers were removed from the capcom bolt already and it was replaced with a carriage bolt and nut). Hardest part was putting the plastic case back together while not breaking or crushing anything inside (this was also quite easy but yea that's about how hard this whole thing was).
 
Just did my Marvel Vs. Capcom and it seems that 94-01 is just the part number for the battery. tho i'm pretty sure still that the battery in AvP was from 94 as the replacement sticker that was put on the outer shell signified. Pics to come.
 

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the AVP I got had an original battery too. I changed it a couple months ago. I really wanna deal that game to someone though, cause I have no use for it, it just came with a showcase cab we got that now has Area 51 in it.
 
the AVP I got had an original battery too. I changed it a couple months ago. I really wanna deal that game to someone though, cause I have no use for it, it just came with a showcase cab we got that now has Area 51 in it.

a showcase cab really? it's a great shmup but idk about having it in a showcase cab. They sell pretty good for the right price. After putting mine back together the volume was so high i went to turn it down via the buttons on the side of the A board and found the down button to be partially broken. looks like i'll have to post in the WTB section soon (i fixed it for the time being tho).

MvC was a bit dustier inside then the AvP, and the C bolts w/ nuts were missing from MvC also, funny i never split the two boards and found a "Approved by Jammaboards.com" sticker inside.
 
Yes, no one should be really afraid of changing a CPS2 battery.
The only problem is that if it's got that weird capcom "C" bolt still in it.

The A board fan is pretty darned easy also. Those batteries last longer than the fans however.
 
dumb question.. do these suicide or something?? how to you keep power to it while changing it?

you have 30-60minutes from when you pull the battery till it suicides. change takes just a few minutes.



Yes, no one should be really afraid of changing a CPS2 battery.
The only problem is that if it's got that weird capcom "C" bolt still in it.

The A board fan is pretty darned easy also. Those batteries last longer than the fans however.


both my boards had been opened before, the MvC was missing the C bolt on both the A and B boards. Also 2 of the security screws still had their original Capcom Warranty stickers over them but both Battery changes showed signs of previous replacement (as you can tell by the black spots on the MvC board, I didn't do that :D )

Both of my A boards have very loud fans but they're still working flawlessly, when i fixed the volume button on AvP I cleaned off the little dust that was on it and just put it back together (as it wasn't broken therefore why fix it lol). it did look even easier than the battery as it has that nice molex connector :D.
 
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But CPS3 is an instant death. So you would need a helper battery or keep it powered on while changing. CPS2 is much easier. Almost foolproof.

that sounds like a joyous task if i've ever heard of one, i'll have to googe that how to for future reference.

I'm loving this Hakko station tho, so much better than my 15watt radio shack pen iron.
 
Do all CPs2's have suicide batteries? I just picked up a working Dark Stalkers that I know has never been changed since the game was in service (the Ops pulled it from an original game, and it has been warehoused until now.)
 
Do all CPs2's have suicide batteries? I just picked up a working Dark Stalkers that I know has never been changed since the game was in service (the Ops pulled it from an original game, and it has been warehoused until now.)

I'm pretty sure all of them do. I would change that battery.
 
yeah, definitely change it if you value it. I would consistently power up the AVP every so often to check it lol and it lived to that point, so I said yeah, now's the time to do it.

according to CPS Shock, it's guaranteed to last for about 20 minutes, permitting you've powered the board on for awhile (30 mins to be safe) before powering it down to take it apart and such. the only part where you could potentially fuck up the operation is if you hook the battery up with the polarities backwards.

games that are run consistently have lesser reliance on the backup battery cause the board still holds a little bit of charge when it's off.
 
i haden't powered my AvP in months, and atleast 3-8 weeks on MvC. I'm kinda thinking that since AvP wasn't used often and was kept at room temps 60-85f it held it's charge, as most batteries last longer at lower temps.

The AvP was pretty much spotless inside, MvC was rather dusty tho.

The only other issue i could see happening with doing a battery swap would be crushing a cap or other part on the board when putting the plastic case back together (i spent more time on this with AvP than changing the battery lol, being my first time and all).
 
I did the battery in my SFA1 and I have a stack of batteries for my MVC, Dark Stalkers and SFA3 which I have yet to do. I need to add those to my list. :D There you have another thing to harass me about. :001_sbiggrin:
 
I did the battery in my SFA1 and I have a stack of batteries for my MVC, Dark Stalkers and SFA3 which I have yet to do. I need to add those to my list. :D There you have another thing to harass me about. :001_sbiggrin:

someone has to crack the whip and keep these kids in line!

HOW CAN YOU HAVE ANY PUDDING IF YOU DON'T EAT YOUR MEAT!?


CPS2 batts should be moved to the very top of the list IMO
 
you got the stuffs to do that or you sending it out? i think nerdy might need a resurrection.

I pushed my AvP at the minimum 8 years (+ however long it was since replacement before i got it). then bought batteries and waited 4 months to install them so who am i to talk lol.

Was definitely worth the wait tho this new Hakko station i got is amazing.
 
I was amazed how easy it was to replace a battery on CPS2. The fact that you can remove the battery completely and just replace it works great. I am using a desoldering gun to clean the hole and it makes it pretty quick although if you are good with a Edsyn Soldapullt that would work too :)

I put together a set of pictures when I did a few boards:

http://gallery.metahugh.com/main.php?g2_itemId=22802
 
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