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Is living without cell phones and tablets really possible? But above all, have we ever wondered how much electricity they can consume by subjecting them to periodic recharges? The answer may surprise us.

Cell phones, cell phones, even smartphones and tablets they are very energy efficient because they are designed for run on battery for a long time.

Smartphone recharge consumption
Photo source Canva

Cell phones use about 2 to 6 watts when charging, while a charger left connected to the socket, without telephone, will consume 0.1 to 0.5 watts.

Charging an iPhone or Android phone under normal conditions of use it will generally cost, such as electricity consumption, alone, just over a euro of electricity for a whole year, if of course used in moderation (about 1 hour a day for recharging). That is, we refer to the need to download a mobile phone completely first and then to recharge it.

How much does it really cost to top up a mobile phone?

Naturally if we use a cell phone from 12 to 18 hours a day (will we go to sleep sooner or later?), it will end with it download faster. And especially this will happen if we are always connected to the network: then the consumption could reach up to 3 euros per year, but we are really at the limit. Charging a mobile phone is not a very significant source of energy consumption. But to get to all of this you should hold on perpetually your cell phone under charge risking to break it.

As already mentioned, disconnect the phone charger it can save some energy, but even if you’ve left a charger plugged in without a device that consumes half a watt 24/7 for a full year, it will only cost you 50 euro cents per year more. Suppose instead of charge the device for 2 hours every other day. This means that in a year you will spend 365 hours charging your device. At 6 watts, that’s 2190 watt hours, or 2.19 kilowatt hours (kWh). If your utility company charges 12 cents per kWh (rough average in Europe), it means that it costs you just under a euro a year to keep your device charged.

During an overnight charge, an I-phone consumes an average of 19.2 Wh. According to the data published by the US Energy Information Administration for July 2021 (the latest data currently available), the average cost per kWh in the United States was $ 0.13. Remember that 1 kWh equals 1,000 Wh.

So, take the average of 19.2 Wh per day, multiplying it by 365 days, we get 7 kWh, which equates to $ 0.91 per year. So, in the end the reports confirm it: less than a dollar. We are therefore faced with certainly not excessive consumption. It goes much worse, however, when we recharge a cell phone all night.

It is certainly not the overcharging of our mobile a compromising our electricity bill. But having answered certain and delicate questions certainly makes everything clearer.

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Philip Owell

Professional blogger, here to bring you new and interesting content every time you visit our blog.