Wireless chargers have become an everyday convenience, found in homes, offices, and even cars. But as their use becomes more widespread, experts are sounding the alarm about the potential risks of improper use, particularly overheating and device damage.
Unlike traditional chargers that require a cable, wireless chargers enable users to power up their devices by simply placing them on a charging pad. While the ease of use is appealing, misuse or neglect of basic safety guidelines can lead to overheating, malfunctions, or even fire hazards.
One major concern is placing a smartphone on a wireless charger with items like credit cards or transit passes still attached to the back. Experts warn that this can cause serious overheating. The issue arises when the electromagnetic field used in wireless charging interacts with metal components in cards or accessories, generating excess heat. This can damage your device or, worse, cause burns.
To minimize risks, experts and regulatory agencies recommend the following precautions: avoid charging wirelessly in hot or humid environments, use only power adapters that meet the charger’s rated specifications, and ensure your device is correctly aligned on the charging pad to improve efficiency and prevent overheating.
Correct placement is especially important, as misalignment can reduce charging performance and increase heat generation.
In response to growing safety concerns, South Korea’s Ministry of Trade, Industry and Energy announced Wednesday that it will launch a nationwide public safety campaign in collaboration with the National Fire Research Institute and the Korea Consumer Agency. The campaign will feature informational posters highlighting key safety tips, which will be distributed through consumer advocacy groups and widely shared across social media.
Officials hope the campaign will raise consumer awareness and promote safer wireless charging habits.
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