It's ok, it swollen to it's current size 8 years ago... and hasn't changed since. It's also not restricted to it's housing because the battery compartment quite easily pops off.
(non-extreme) swelling does not itself cause fire, restriction which leads to puncture or shorting does... this is not a year old 1mm thick smart phone, it's an inch thick decade old macbook.
(non-extreme) swelling does not itself cause fire, restriction which leads to puncture or shorting does... this is not a year old 1mm thick smart phone, it's an inch thick decade old macbook.