Incidents related to smartphone chargers regularly make the headlines on social networks. They are left plugged in for whole days unattended and sometimes they set off house fires. Corn how can a charger start a fire ? What are the causes of charger burns? Is it really possible that a charger plugged in empty can catch fire? In this article, I will answer all of these questions.
Can a smartphone charger really catch fire?
In normal use, if the charger is good quality and suitable for smartphones, the answer is no.
However in some cases, most often on counterfeit chargers, fire cases have been reported. They can be linked to different causes leading to a short circuit.
The causes of fires caused by chargers
First cause
The first cause may be related to USB cable connecting the charger to the phone. If he's damaged, or too bent, its internal conductors may short-circuit. Therefore, the charger tries all the same to ensure the voltage of 6 volts necessary for the load. But the short-circuit causes the transformer to overheat… until the fire starts.
Second cause
Un poor quality charger can also overheat and start a fire. The transformer circuit gives off heat when converting alternating current to direct current. Heat can slowly build up and cause inflammation of nearby fabrics or wood. That is why it is safer to charge your phone on cold surfaces and away from flammable objects.
To protect yourself and your device, avoid counterfeit chargers, chargers for different devices, even if they seem to be compatible, and ensure that their USB or Lightning cords are in good condition.
Why should you unplug your charger?
You must always unplug your charger for two reasons:
- The first of these is the energy bill. When you leave the chargers plugged in, electricity is consumed even when the charger is not in use. Not only is this wasted energy, but you are paying for electricity that you don't really use.
- The second reason follows from the first. As the energy "sucked" by the charger is not used, it heats the device, which can cause fires to start.
It is therefore recommended to unplug all your chargers and even more devices being charged if you leave your home.