2nd Gen Replacing Internal Battery [Guide]

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TheGearofWar

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    I did some snooping and haven't found anything fully covering this, so I decided I could help out.
    Please note, I wrote this guide from scratch, if you want to use it elsewhere, be my guest, just don't take any credit, please.




    Replacing your GSC Internal Battery

    Tools
    - Game Cartridge
    - 3.8mm Gamebit Nintendo Cartridge Opening Security Tool*
    [https://www.nintendorepairshop.com/shopexd.asp?id=82]
    - Coin Cell Battery [CR2025 or CR2032**]
    - Electrical Tape
    - Swiss Army Knife [or other smooth blade]
    - Needlenose Pliers

    * = The security tool is not required, but will make the process far easier; alternatives for this include: tweezers or pliers
    ** = Recommended


    Process

    [I have replaced the internal batteries to my GSC games, if you need any help or have any questions, do not be afraid to contact me, and I will walk you through the procedure]

    Removing the Old Battery


    1. Turn your game cartridge over so that the backside is facing you, depending on which tool you are using, do the following:
    A. Security Tool: Not hard to figure out, use the security tool and make sure that the bolt is completely enveloped by the tool, apply slight pressure, and twist the tool so that you should feel a slight give as you are removing it, if the tool skims over the bolt, you need to press harder and/or make sure that it is fitted properly. Twist until the bolt is removed, and set that aside for the time being.
    B. Tweezers/pliers: Much harder than using a security tool, you need to firmly grip the bolt with either of these tools, making entirely sure that you have a good, hard grip on the bolt. The bolt will probably feel as if it is fastened more tightly than when using a security tool, but just keep twisting it until you feel a give, and proceed until the bolt is removed, then set that aside for the time being.
    ! Please note, the bolt on Crystal Version is more tightly fastened than Gold and Silver, and will be more difficult to remove !

    2. Now, turn your cartridge over so that the cover is facing you, and slide the front cover down gently; do not pull at it right away, slide it until you can not slide it any more, and remove it from the bottom half, set that aside for the time being.

    3. You'll see the circuit board now, the internal battery is not hard to miss at all, being the large silver disc that takes up 25% of the actual game. You'll notice a tab fastened over it, securing it in place, and underneath is another tab, keeping it intact. Now, this is where you're going to need steady hands and some concentration.

    Using the Swiss Army Knife or other smooth blade, dig between the tab and the battery, and try to pry it off. There are two marks you'll notice on the tab where the battery was soldered into place at the factory it was manufactured, and those are the trickiest parts to remove.
    *Note! Keep away from the crystal oscillator, which is next to the internal battery, it has a white piece fastened over it, and this controls how the game keeps time, try to refrain from touching this as much as possible

    Try not to fray or distort the tabs, they will be bent no matter what, but there's no reason to worry about that. Resume with removing the tab until the battery is only connected to just the underside tab. Now, let me fill you in a bit on the batteries.

    All Gen I and II games were manufactured with a CR2025 battery, which has 165 mAh (milliamps per hour), the CR2032 has 220 mAh, and will obviously last longer than the CR2025 original battery did. The CR2032 battery is about .7 mm bigger than the CR2025, but it will still fit, and last longer. From personal experience, I would select the CR2032.

    Back, to the project of replacing your battery, now, however.

    Before you remove the lower tab, however, take note in how the battery is placed inside the game. There is a wider side and a less wide side of the battery, the wider side is + and the lower is -, keep this in mind for when you fasten in the newer battery, make sure to keep it on the same side as the old one.

    You should have the top tab free, with the battery still loosely attached. Lift it up a little so you can have a fairly good view of the underside, and remove the bottom tab. You should be a little more confident with how this works and how to remove the battery from the tab, now, so it shouldn't take as long to do so.

    4. Now, your battery should be free! You'll notice a thin plastic ring around the old battery, using the knife or other smooth blade you used earlier to remove the battery from the tabs, slice the ring off, and wrap it around the new battery. If you're using a CR2025, the ring should fit perfect, but with a CR2032, the ends won't meet entirely, but it will work just as fine nonetheless.

    Using your electrical tape, get a small piece to tape the ring to the new battery.

    Inserting a New Battery

    1. Using the pliers now, flatten out the tabs as much as possible. They won't be straight-out-of-the-factory flat, but as long as they aren't too out of proportion. Make sure the top tab has its original bend so it can lay over the new battery just as it did to the old.

    2. Lift the bottom tab up a little bit, and using a piece of electrical tape roughly the size of your new battery, tape underneath with the still-sticky side up so that you can push the new battery onto that surface.
    *Note! Make sure the battery is sitting in the same way it did as the old; with the larger side on the bottom and the less wide on top.

    Your battery should be loosely attached now. Now, using the other tab, push it onto the new battery, and do the same with another piece of tape so the battery and tabs are sandwiched together by the electrical tape.

    3. Now, put the cover back on your cartridge, slide it up until it clicks into place, and screw the bolt back into place with the security tool or your tweezers. Congratulations! You have now replaced your internal battery!

    ---
    Enjoy!
     
    Sweet guide! -_- but for all that i'm just buying a new game lol
     
    I think everyone is XD
    That and there are ROMs available, too, but for those die-hard nostalgics, I thought this would tickle their fancy
     
    Why isn't this stickied, as this is rather useful IMO.
     
    I agree this should be stickied
     
    I have lost that little ring around it , is it such a big problem ?
    I still haven't got the CR2032 but I am going tomorrow . So will there be anything wrong if it's without that little thing around it ?
     
    I have lost that little ring around it , is it such a big problem ?
    I still haven't got the CR2032 but I am going tomorrow . So will there be anything wrong if it's without that little thing around it ?

    I replaced mine back in January, and i didnt have the rubber thing around it,
    It stil works fine so there shouldnt be a problem.
     
    What Redstar said. Someone beat you to the job. Besides, the only replies you're gonna get are "oh yay cool thanks". Nothing progressive.

    Locked.
     
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