I only ask because the bulging seems slight enough that I'm not 100% certain that's not just how the battery is supposed to look.
This is inside a Lenovo ideapad flex 4. I only opened it to replace the hard drive.
Just poke a hole in it to release the extra pressure! (Don't do this)
Don't say that
Just poke a hole in it to release the extra pressure! (Don't do this)
Don't say that