Some iPhone users reported that the phone's battery bulged during the flight, but the bulge returned to normal after the plane landed.It is understood that this phenomenon occurs in new iPhones, including iPhone 16 Pro Max and iPhone 15.
On social platforms, some users shared their experiences: iPhone 16 Pro Max had a bulge on the plane, but it returned to normal after landing and did not appear again on subsequent flights.
Some analysts believe that this phenomenon may be related to the characteristics of lithium batteries.Specifically, lithium batteries may gradually produce gas during use. Under normal pressure conditions on the ground, these gases will be compressed inside the battery. However, in the aircraft cabin, since the air pressure is lower than sea level, this pressure change may cause the gas in the battery to expand, causing bulging.
It should be reminded that even if the battery no longer bulges after the plane lands, it cannot be taken lightly. Because battery expansion may damage the internal structure and affect the waterproof and dustproof performance of the mobile phone.
It is worth mentioning that this is not the first time that Apple’s iPhone has had a battery bulge problem. In June 2024, Apple iPhone 13 was exposed to a "clumping" bulge problem.
At that time, Apple’s official customer service responded to the iPhone 13 battery bulge problem, saying that it was caused by battery aging. In addition, the weather may be hot, and similar problems may occur due to the temperature of the device.
