Smartphone Gets Very Hot While Charging – Is It Dangerous?

Mild warmth during charging is normal, but excessive heat points to a problem. Possible causes include a faulty or cheap charging cable, leaving the case on while charging, charging in direct sunlight, or charging on soft surfaces. Disconnect the charging cable immediately if the device becomes unusually hot. Only use original or certified charging cables and power adapters. If the device smells burnt or the battery appears swollen, place it on a fireproof surface, stop using it, and contact customer support.