Top 8 Most Dangerous Causes of Smartphone Fires and Explosions

There have been numerous incidents where phones exploded after being placed under pillows or blankets during sleep. Charging your phone near other devices like laptops or tablets can also lead to explosions. When phones are kept near fabrics or while charging, the heat emitted by these devices can easily cause the phone to overheat and explode. Furthermore, while you are asleep, your phone is still active, receiving calls, messages, and notifications. This means the electromagnetic radiation from signals and Wi-Fi continues to affect the surroundings and can have an impact on your health. Each time your phone lights up due to a notification, the light can interfere with your body’s melatonin production, making it harder to fall asleep and causing poor sleep quality. The result is waking up feeling exhausted and with headaches. To protect your health and that of your family, it's important to break this habit.

Many people have a habit of using their phone in the rain, whether it's for a call or checking messages, while their hands are wet from the rain. Using a phone under these conditions can cause water to seep into the device. Additionally, if there's a thunderstorm, you run the risk of being struck by lightning while using your phone in the rain. To stay safe, always wait until you're in a dry, sheltered place before using your phone.

Using an incorrect charger can cause your phone’s battery to malfunction or even explode because the charger may supply more power than the device can handle. Cheap chargers often fail to meet safety standards, using low-quality materials that are prone to damage. Smaller manufacturers may skip essential features, such as adjusting the charging current or automatically stopping the charge when the battery is full. The market is flooded with various types of chargers and cables at different prices, which can lead to overheating, electrical shorts, and even fires if substandard chargers are used.

To minimize the risk of fires or explosions during charging, always use the original charger that came with your device. If you need to replace it, choose a certified charger that matches your device's voltage and power requirements. Avoid using chargers with higher power outputs to speed up the charging process, as this can lead to overheating and excessive strain on the phone.

One of the causes of smartphone explosions is flaws in the manufacturing process. Battery issues (such as the Galaxy Note 7 case), using incorrect components, or assembly line errors can damage internal parts of the phone. In such cases, the device could explode randomly, leaving users unable to predict or prevent the incident.

Design flaws or counterfeit products also contribute to battery explosions. This is commonly found in low-cost phones from lesser-known manufacturers or those sold without proper documentation or counterfeit parts. To avoid these risks, always buy phones and accessories from trusted and reputable sources.

Overheating smartphones are definitely one of the most common causes of explosions. While Li-ion batteries are generally safe within the specified temperature range, especially after the Samsung Galaxy Note 7 incident, manufacturers have worked hard to improve safety standards. However, overheating can still occur.

So, where does the heat come from? It could be from direct exposure to fire, external electrical leakage, or charging the phone when the battery is already hot. Performing intensive tasks while charging or leaving your phone in extreme temperatures, like in a car or trunk, can also cause overheating. The external heat directly affects the phone, causing the battery to heat up, and this can lead to catastrophic results.

Many people choose to buy phones, batteries, and chargers from small shops that sell and repair phones, often because they offer lower prices that fit within a budget. However, buying from these non-authorized stores often means the quality, origin, and product information are uncertain, and warranties may be minimal or unreliable. If you end up with a low-quality device, it could lead to unexpected problems like product malfunctions, rapid deterioration, or even fire hazards. To ensure safety and receive value for your money, it's best to buy from reputable stores like Thế giới số, Thế giới di động, Vietel, or Vinaphone branches.

These official retailers are available in most provinces and cities across the country, making it easy to find a reliable store for your purchase. Some trusted locations in Hanoi include 11A Thái Hà, Trung Liệt, Đống Đa District, 238 Nguyễn Trãi, Trung Văn, Nam Từ Liêm District, and 04 Ngõ 177 Định Công, Hoàng Mai District.

Many people have the habit of charging their phones overnight or using them while charging, which is very dangerous. When the phone is charging, it should be in rest mode—wifi, 3G, and all usage should be turned off. Using your phone while it charges can overheat it, damage internal components, weaken the battery, and in the worst-case scenario, cause the phone to catch fire or even cause bodily harm or house fires. Charging overnight can harm both the device and the battery, and charging during a thunderstorm can result in lightning striking the phone, causing explosions.

To avoid these risks, remember to disconnect from networks while charging and avoid overnight charging. When sleeping, keep your phone away from the bed, and never use your phone while it’s charging.

Falls, water immersion, or strong impacts can damage wires, cause electrical shorts, or displace internal components in your phone. To ensure its safety, visit authorized stores for advice and repairs.

If your phone has dropped, check if it suddenly overheats or becomes slower to detect any unusual behavior. In case of issues, take it to a service center immediately. A good preventive measure is to equip your phone with a protective case to reduce the risk of damage from impacts.