Macworld

Mac 911: Beware the bulgy battery and connect another building

In one of the Slack teams I’m in, a colleague posted a photo of a battery he removed from a MacBook Air. He replaced the battery just fine, but one of the cells looked like it had been inflated like a balloon. I warned him to take care, and in the resulting discussion, realized it’s not common knowledge that it’s not just a defectively designed Samsung Note7 battery that can cause fires and damage.

The battery cell in the upper left is disturbingly bulgy. Fortunately, it was disposed of safely.

If you believe the battery in your

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