Batteries swelling and cables getting so hot they're discolouring is what we call "safety critical" issues in the electronics industry.
Basically it means they're early indications of problems that can cause injury (in both these cases fire). Most companies I know are extremely lenient with warranty for these types of issues. I worked in support for a manufacturer (not Apple) for a long time.
Basically it means they're early indications of problems that can cause injury (in both these cases fire). Most companies I know are extremely lenient with warranty for these types of issues. I worked in support for a manufacturer (not Apple) for a long time.