Topic: Pokemon Blue Saves Sometimes

So i picked up a copy of Pokemon Blue, I have no idea if the battery is new or not but I do know that when i save, if i turn the gameboy off and on again, i keep my save, however, after about an hour from the last time i turn on the game, the save file will just delete itself.
It does save correctly though so i don't know if its the battery or if it's the game itself, i've cleaned all of the inside multiple times but the board is extremely dirty still and i believe it's corroded but i'm not sure what that looks like to be honest. I've never had this problem before so i dont know what to do.

So you think it's the battery? I'll order one and solder it in and i'll post an update

Since the save data in (most) Game Boy games is just a battery-powered RAM chip, it's possible that data is still there right after turning the console off simply because it maybe hasn't had enough time to change from its powered-on state. (on home 8/16-bit consoles with a reset button, that is literally the difference between a power and reset state: whether or not it has been off long enough for non-saved RAM to get powered down and cleared out. With a dead battery, that save memory becomes the same as a non-saving RAM chip.)

Yep, it's the internal battery. The same thing happened to my Pokemon Crystal cartridge a couple years ago. It would retain the save for a little while, then forget there was one. Still perfectly playable otherwise. Still haven't replaced the battery yet. At the time, my other GBC games saved fine, but I haven't tested them since.

That's because Gen 2 uses a clock, it drains the battery MUCH faster than most GB/GBC games.

Weirdly enough, my copy of Silver still worked fine last I checked....But again, it has been a couple of years. I might be due for a retro-only handheld weekend soon.... :thinking_face:

@Tyranexx just replaced the battery and it did not fix the issue, i will try to re flow all the connections to the motherboard to see if there is a problem with the memory

Good call. Gotta be something else if replacing the battery didn't do it.