Tag Archive : mobile phones

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Is it OK to charge the phone overnight?

Most people use their mobile phone during day time, and when they go to sleep they plug in the phone to charge. But the phone may only take a few hours (more likely less than 3 hours) to charge. But when they are asleep and no one’s there to remove the phone from the charger at that time, the phone is still plugged into the charger for hours, even after a full charge. But is it ok to leave the phone like this?

Well, modern smartphones are smart enough to stop the charging of the battery through detecting that the battery has reached 100%, through its microchips. But in the past, it was not a good idea to leave the older mobile phones ( not the smartphone generation) in the charger for a long time after the charging is completed. This caused the battery to become bulged. So in smartphones, are there any disadvantages of leaving the phone on the charger after its fully charged?

If you consider the electricity bill, there may be a disadvantage. Keeping a charger plugged in unnecessary may increase electricity bill unnecessarily. This may be a very little effect on the electricity bill but the authorities of some countries inform that the electricity bill can be reduced by plugging the chargers out when the task is done. But some tests have proven that this would be a matter of just cents. Check here for more details. If there are such doubts, you can use a charger with a timer. So once the charging is done in about 2 or 3 hours, the charger will turn off itself rather than consuming electricity for 3 or 4 hours more.

One more thing is that charging may cause the phone battery to heat a little bit in some phones. So it is suggested that if the phone is plugged into the charger, make sure that it’s properly ventilated ( not covered in any way). If the phone is covered in some way, it may get more heated. This may cause serious accidents and device damage. The batteries may get bulged due to the reason.

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Using mobile phones during lightning? Does it attract lightning?

There’s an idea among mobile users that if you use a mobile phone during lightning, it may attract the lightning and harm you. This seems to be a myth according to science.

If you use a wired line phone during a thunderstorm it is true that there’s a chance of you getting struck by lightning. This is because the phone is connected to a wide wired network outside. If some equipment in the wired network gets hit by lightning ( a pole lets say), there’s a chance that the high electricity absorbed may get distributed to the phone you are using, through the wired connection. This may result in heavy injuries.

But in the case of mobile phones, it’s not connected to anywhere other than the mobile network which is a wireless radio connection. As you all know, mobile phones radio signal is a very low powered one. Even the metal around the mobile phones casing is not a cause to attract lightning. So is there a chance of you getting struck by lightning when talking over a mobile phone?

The answer is yes. But this is not due to the mobile phone in any way. If you stay in an area where there’s a high chance of getting struck by lightning, for instance on a mountain or on a flat land area, there’s a chance of getting struck by lightning no matter if you were using the mobile phone or not. According to this same logic, it can be assumed that there’s a chance of getting attacked by a wild animal when you talk through the mobile phone. Only if you are in a wildlife area when talking of course.

One important thing to remember if you use mobile phones during lightning is that you should not connect chargers because the charger connects the phone to the main power grid which has a high risk of getting struck by lightning (Same reason in a wired landline connection ).

Reputed statements supporting the article –

Following worldwide media interest in 2006 (BBC News and British Medical Journal ), the US National Oceanic and Atmospheric Administration (NOAA) issued a statement, saying lightning is not attracted to people carrying mobile phones.