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
Yes, that is a concern. Pictures of a new battery shows it to normally be flat or slightly indented in that area.
Bulging batteries are bad news, always replace
I love me a spicy pillow!
You can have mine. I’m done using it.
It’s not a concern until it is. Are you OK with it starting a difficult to extinguish fire in its current location? If not, you might want to get rid of it.
A little? Both cells on the right are bulging pretty badly. Even the one on the left is starting to bulge.