It is a replacement battery for Pokemon Gold, Silver and Crystal. (I also
have batteries for other Pokemon games and for Nintendo NES, Super
Nintendo (SNES), Nintendo 64, Sega Mega Drive / Genesis and Sega
32X cartridges, please look at my other items).
If your game have saving problems, it's because the battery is empty, you need to change it to fix the problem.
Changing
the battery is very easy, you have to desold the battery on the
cartridge and sold this one in the same place respecting the polarity.
To open Game Boy and Game Boy Color cartridges (Red/Blue/Yellow, Gold/Silver/Crystal), you need a 3.8 mm Gamebit you can find in my shop. To open Game Boy Advance cartridges (Ruby/Sapphire/Emerald), you need a triwing screwdriver you can find in my shop.
I have a lot game/accessories for retro and recent consoles on my shop !
I send the products within 3 working days. The average delivery time for Germany and European Union is 1-2 weeks after sending.