GBA pokemon Ruby game New built-in battery Nintendo Gameboy Advance japanese

I replaced it with a new battery cr1616 that has the same shape as the original battery. The battery is a socket type and is carefully soldered, so you don't have to worry about the battery coming off due to an impact, and you can continue playing the game with confidence! You can replace it with a new battery yourself! * A special Y-shaped screwdriver is required to open the ROM. * Clock events also work fine. * There is no warning message about running out of battery.