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« on: February 07, 2012, 08:32:14 am »
I managed to do this not to a game cartridge but to a device that needed constant power also to maintain its memory. What I ended up doing was removing the circuit board and using a meter I found the positive and negative points on the opposite side of the battery. I then soldered wire at those points, had my temp battery in a battery holder that already had wires coming off it. I just added alligator clips to it and clipped it onto the wires I soldered. I then removed the battery and replaced it. Everything working out fine not sure if this will work on cartridge but might be worth a try. Only thing that might be an issue is the jump in voltage but didn’t effect my application and in theory it was doing the same thing as a game cartridge.