Don't plug the charging cable into your phone first, then connect the adaptor to the wall socket — here's the risk

One risky yet often overlooked habit when charging a mobile phone is plugging the charging cable into the device before connecting the charger head or adaptor to the wall socket. Some users may believe that plugging the cable into the phone or connecting the charger to the wall first are the same and have no significant impact.

You may have encountered sparks at the wall socket when connecting a charger to charge the phone. The sparks occur due to a brief voltage surge.

According to the official site of power connector manufacturer Hongyi Tech Group, such voltage surges can continue to reduce the battery health of the phone.

To avoid voltage surges, users are advised to charge by first connecting the charger to the wall socket. In this sequence, the high voltage can be damped by the charger before it reaches the phone.

Even if it’s said to be safer, this does not mean the charger should be left plugged in continually. A charger left to stay in the wall socket can pose a risk of short-circuit, particularly with low-quality or counterfeit chargers.

Therefore, once the phone’s battery is fully charged, the charger should also be unplugged from the wall. Maintaining battery health starts with understanding the proper way to charge a phone.

In addition to plugging the charger into the wall first, proper charging can also be achieved by avoiding using the phone at high intensity while charging. That habit can cause the device to heat up. When a device is frequently exposed to high temperatures, its battery health may deteriorate significantly.