Science and Technology Desk: Smartphone runs on battery. This battery needs to be charged regularly. The phone needs to be charged almost every day. The question in many people's minds is how much electricity is spent per month to charge a phone. Know the details.

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It takes about an hour to charge a smartphone. A powerful fast charger takes even less time.

To charge the smartphone, the monthly electricity costs?

Recently, a post has gone viral on social media, in which it is written, how much it costs to pay mobile charges. There, the cost of a 5000 mAh battery of a phone has been calculated. Let's assume you charge your phone battery from 0 percent to 100 percent once a day.

In that case you have to pay the charge 30 times a month. That is, to charge a five thousand mAh battery 30 times, a total of 1 lakh 50 thousand mAh is spent, i.e. 150 ampere hours.

Usually mobile phones are charged with 5 volt charger. If so, how much is the cost of electricity? That is 150*5 watts per hour. or 750 watt hour or 0.75 kilowatt hour or 0.75 unit.

The cost per unit ranges from Rs 7 to Rs 8, i.e. a little over Rs 5.68. That means you spend little to charge your mobile throughout the month. So it is better not to worry about this.