Why isn't my gameboy micro turning on?

I found a used Game boy micro at a thrift store but no charger for it. I recently found a charger to try it out but when I plug in the charger the blue lights from the start/select buttons flash on but instantly turns back off and the Game boy does not charge. I saw a sticker with red dots on the inside next to the battery connection and looked like the same sticker you find inside phones to indicate that it has water damage. Is that the case with this Game boy? Does it have water damage and if so is it fixable?