Hardware Pokemon crystal battery terminal question

[Chrushev]

Hi guys, sorry if there is a better place for this, but GBC games play on DS as well as they do on 3DS (meaning not at all), and this is the only "hardware" forum I saw. So please move the post if there is a better place.

My question is if anyone knows whether additional battery terminal is connected to anything on the cart? I can probably use multimeter and find out, but am away from the game at this time and brainstorming a mod I want to do (fit a CR2032 battery in there with a holder instead of the standard CR2025 with just tabs) this would allow easy replacement and 32 has about a quarter more power than 25. If I can use that terminal as an anchor point that would be great. But I dont want to short the cartridge (would have negative lead attach to it as 2nd anchor point). There are no visible leads on the PCB from that terminal, but there may be internal ones.

here is the picture of terminal in question: http://imgur.com/a/gNpBo

 

[Natsuru]

I have no idea if that is connected to anything but when I did mine I didn't anchor it to anything. Just soldered the holder into place and done. It hold quite well. BTW a CR2032 with holder will not fit. I tired.
I put a smaller one in and the lit holds it down tight, too tight I might add but its rock solid. if your interested I can find the holder model/batt model & take a picture if you need an example.

 

[Chrushev]

I have no idea if that is connected to anything but when I did mine I didn't anchor it to anything. Just soldered the holder into place and done. It hold quite well. BTW a CR2032 with holder will not fit. I tired.
I put a smaller one in and the lit holds it down tight, too tight I might add but its rock solid. if your interested I can find the holder model/batt model & take a picture if you need an example.

yeah that would be great! I can fit the 2032 in there fine right now with just soldering the battery. If I cant get a holder to work ill then rather solder 2032, because I want the capacity. I tried 2 nice holders and yeah they are too tall, I just ordered a clip instead, that only adds 1mm of thickness. Im going to see if that works.

 

[Natsuru]

yeah that would be great! I can fit the 2032 in there fine right now with just soldering the battery. If I cant get a holder to work ill then rather solder 2032, because I want the capacity. I tried 2 nice holders and yeah they are too tall, I just ordered a clip instead, that only adds 1mm of thickness. Im going to see if that works.

i'd like to see the final product when its done.

 

[Chrushev]

i'd like to see the final product when its done.

Just did it... I tried diagonal, which worked, but I wanted to try horizontal. I like horizontal better because of spacing between positive/negative contacts. Honestly the hardest thing with these is getting the negative contact going, I used two different thicknesses of wire, both worked. Process and final result of both methods are in the gallery - http://imgur.com/a/r0iei