Smartphone safety: handling moisture alerts and preventing battery fires

When a smartphone detects moisture in the charging port, users should immediately unplug the charger, avoid inserting any objects, gently tap the device to dislodge liquid, and let the port dry in a dry, ventilated area for up to 24 hours. After drying, the device can be briefly reconnected to check that the warning has cleared; if it persists, users should consult manufacturer support. Heat sources such as hair dryers, compressed air, or placing the phone in rice are discouraged.

To reduce the risk of battery fires, owners should use only chargers approved by the device maker, avoid charging devices that are hot or exposed to sunlight, and store lithium‑ion batteries at a 40‑60 % charge in temperatures between 0 °C and 45 °C. Charging should be done on non‑flammable surfaces, with regular monitoring of charge levels, and old devices and batteries must be recycled at appropriate collection points rather than discarded in household waste.