My MacBook Pro’s battery is swollen and it don’t turn on nor charge?

It’s 13 inch early 2015.

I found my MacBook dead suddenly . Later I opened it up but found that the battery is swollen and after that I tried to unplug the battery and turn on the Mac using AC POWER but it didn’t turn on?

  • Has it been warning you about the sate of the battery? Did you ignore the warnings?
    – Solar Mike
    Oct 29, 2020 at 7:10
  • There was no warning as far as I noticed . Oct 29, 2020 at 8:04
  • 1
    If a battery starts to swell, a) it is no longer useful; & more importantly b) it is no longer safe. Take it to a professional for safe disposal & a new battery. Don't throw it in the trash.
    – Tetsujin
    Oct 29, 2020 at 8:54

1 Answer 1


The MacBook Pro battery is based on lithium-ion technology. Swelling of the battery can be caused basically by two different things:

The functionality of the battery is based on chemical reactions within its components. These reactions happen when you charge the battery, and when you use it to power your device. However, as time passed, this reaction is no longer perfect, and gas can be produced as a byproduct. This gas makes the battery swell.

The second cause is that the battery is internally structured in "compartments" that are seperated from each other. If for some reason tiny holes occur in the membranes that make out the separation, then moisture from the air could make it into the battery and react with the chemicals. This can cause swelling as well.

In either case, a swollen battery is not fit to be used - and should be handled very cautiously as it is a safety issue as well. A swollen battery could break out in fire spontaneously.

I would suggest disposing of the battery via the correct channels immediately.

The battery needs to be replaced with a new battery in order for you laptop to function again.

Not the answer you're looking for? Browse other questions tagged .