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how do i change the battery in a pokemon ruby cartridge?

the rechargeable battery in my pokemon ruby game died. i can still play the game, but because of the battery problem, time doesn't change ( no day into night, no high/low tide, etc.). please help!

Kiteman5 years ago
Is there a small screw in the case? Possibly hidden under the sticker on the cartridge?
b0bman (author)  Kiteman5 years ago
i have opened the cartridge, but i need to know how to replace the battery itself. i don't want to accidentally ruin the game. do you have to buy 'special' batteries from ebay or something- or can i pick them up at a store?
Kiteman b0bman5 years ago
How about posting a macro photo of the inside of the cartridge?