Charging a device involves the transfer of electrical current from a power source to a battery. When functioning properly, this process is safe. However, issues arise when:

Low-quality or damaged chargers are used
Electrical outlets are overloaded
Cables are bent, frayed, or improperly handled
Devices are charged in unsafe environments
These factors can lead to overheating, short circuits, or in rare cases, electrical fires.

It’s important to understand that most modern devices are designed with built-in safety mechanisms, but these protections can fail when external components—such as chargers or extension cords—are faulty or substandard.

A Realistic Scenario: What Can Go Wrong
Consider a common household situation. A family uses a single power strip to connect multiple devices: a television, internet modem, fan, and a mobile phone charger. Due to limited outlets, this setup may seem convenient.

Now imagine the charger being used is not original or certified. Over time, its cable becomes worn and slightly damaged. To keep it working, the cable is bent or adjusted into a specific position.

In such a case, several risk factors combine:

Overloaded power source
Poor-quality charger
Damaged cable insulation
Restricted airflow around the power strip
These conditions can generate excessive heat. If the heat is not dissipated properly, it can damage surrounding materials and potentially start a fire.

While such incidents are not everyday occurrences, they are entirely preventable with proper awareness and precautions.