iPhone Users Report Rare Battery Swelling Mid-Flight

Several iPhone users have reported a concerning issue where their devices’ batteries swell during flights. This rare phenomenon has raised questions about the safety and quality control of newer iPhone models, particularly the iPhone 16 Pro Max and iPhone 15. Users have noted that the swelling occurs mid-flight but returns to normal once the aircraft lands.

One user detailed their experience with the iPhone 16 Pro Max, stating that the battery swelled while in the air, causing the back panel to separate from the device. Remarkably, the battery returned to its original shape shortly after landing. Another individual with an iPhone 15 reported similar occurrences during two flights, prompting them to seek a battery replacement as a precautionary measure. After the replacement, the swelling issue reportedly ceased.

Potential Causes Linked to Cabin Pressure

These reports suggest that newer iPhones may be particularly sensitive to changes in cabin pressure during flights. This sensitivity could be more pronounced on older aircraft that might not maintain cabin pressure as effectively as modern jets. While no official statement has been issued by Apple regarding these incidents, observers speculate that trapped gas within lithium-ion batteries could be a contributing factor.

Under normal atmospheric pressure, the gas inside the battery remains compressed. However, during flight, reduced cabin pressure might allow this gas to expand, leading to temporary swelling. Once the aircraft lands and the pressure normalizes, the battery typically resumes its regular form. While this issue appears to be impacting only a small number of newer iPhone models, affected users are encouraged to document their experiences and seek battery replacements from Apple if necessary.

The aviation industry and consumer electronics experts will likely monitor this situation closely as more reports emerge. As users continue to share their experiences, it remains crucial for Apple to address these concerns to reassure customers about the safety and reliability of their products.