Power consumption when left charging without a device
Posted: Wed Feb 19, 2025 8:39 am
One of the main myths about leaving a charger plugged in is related to power consumption. And in this case, the proponents of the theory are partially right! Research shows that the adapter does algeria mobile database a small amount of power, but it is an extremely insignificant amount - less than 0.3 milliamps, which will amount to 0.3 kilowatt-hours per year. Given the electricity rates in most regions, this results in an insignificant amount of expenses. You can safely leave several chargers plugged in and not worry that this will greatly increase your electricity costs.
Comparison of energy costs with other devices
Let's look at how much power some other devices use, for comparison. For example, an 1800-watt hair dryer uses about 300 watt-hours for 10 minutes of use, which is more than your iPhone charger uses in a year. And if you add up the power consumption of all your chargers, as we did in our study, the sum is even more paltry - you could spend that amount on a cup of coffee or even a charging cable.
Safety of leaving the adapter in the socket
People who think that leaving a charger in the socket is unsafe somehow do not pay attention to the fact that other electrical devices work for years without interruption and do not cause problems. Refrigerator
niks, smart speakers, TVs, routers - these devices are rarely turned off, even when going on vacation. And even among chargers, there are those that are specially designed to be left in the socket, for example, sockets with USB ports. At the same time, the internal components of these devices are almost identical.
In addition, smart home sockets also have similar devices and are constantly connected to Wi-Fi, but there are no problems with them either. However, there is one important caveat: this is true provided that you have good and reliable electrical wiring in your apartment or house. If the electrical wiring is old and does not meet modern safety standards, then perhaps you should be more careful and disconnect devices from the network.
Comparison of energy costs with other devices
Let's look at how much power some other devices use, for comparison. For example, an 1800-watt hair dryer uses about 300 watt-hours for 10 minutes of use, which is more than your iPhone charger uses in a year. And if you add up the power consumption of all your chargers, as we did in our study, the sum is even more paltry - you could spend that amount on a cup of coffee or even a charging cable.
Safety of leaving the adapter in the socket
People who think that leaving a charger in the socket is unsafe somehow do not pay attention to the fact that other electrical devices work for years without interruption and do not cause problems. Refrigerator
niks, smart speakers, TVs, routers - these devices are rarely turned off, even when going on vacation. And even among chargers, there are those that are specially designed to be left in the socket, for example, sockets with USB ports. At the same time, the internal components of these devices are almost identical.
In addition, smart home sockets also have similar devices and are constantly connected to Wi-Fi, but there are no problems with them either. However, there is one important caveat: this is true provided that you have good and reliable electrical wiring in your apartment or house. If the electrical wiring is old and does not meet modern safety standards, then perhaps you should be more careful and disconnect devices from the network.