What we do then is multiply the 2 hour power time with the 20W charger, giving you a total of 40W. We know it comes equipped with a 20W (0.02 kilowatts) charger that will juice the battery up from empty to full, in about 2 hours’ time – hella impressive in itself! So, we’ll start with the cost of a kilowatt hour (kWh), which is an average of about 17.2p in the UK. £2.48 suddenly makes us feel a whole lot better about charging our iPhone all night long but you’re probably wondering how on earth we got there. If you’re anything like us, you probably have a silly number in your head like £600, but we assure you it’s a lot less than this and we did the maths to prove it.Īfter pulling together a few figures, concentrating really hard, we worked out how much it would cost to charge your, let’s say, iPhone 12, per year.ĭrum roll please… The total cost is just £2.48 a year – that’s less than one single Tesco Meal Deal. The common routine is to use your mobile all day long then charge it through the night.īills don’t pay themselves and with all this charging, we imagine your minds have started wandering thinking about how much electric you’re using. Whether we’re texting, calling, streaming or browsing our socials.īy now, you’ve no doubt clocked up a fair few hours plugged into the mains. We’re all guilty of having our mobiles in our hand constantly.

Get your calculator ready if you don't believe us.

Does your phone charge when its off