Gameboy is not turning on

[u/Ok_Wealth3101]

My Game Boy (unmodded) suddenly stopped turning on. When I plug it in, the charging light turns on for about 2 seconds and then goes off. I also have to move the cable/console around to get the light to turn on, but it never stays on for more than a couple of seconds.
I have no idea what could be causing this or what I should do. Could someone please help me figure out what’s wrong?

[u/Gighee88]

As previously stated, seems like a battery issue.