Does charging your phone overnight ruin the battery?

charging mobile

Many people have the habit of charging the phone before going to bed and they let the phone to be charged overnight. Now, does this ruin the battery life of mobile phones? A common question among smartphone users, we are here to answer it.

Nowadays, most of the mobile phones’ batteries are equipped with overcharge protection circuit. This circuit cuts off the power supply once the battery is charged completely. So, leaving your phone overnight will not ruin the battery of the mobile phone. Moreover, manufacturers carry out comprehensive quality control test before shipping the product to the market. So, you should not worry about overcharging your mobile phone these days.

But this doesn’t mean that you can overcharge it. The battery can be charged and discharged frequently, but it will gradually degrade over time. The capacity and lifetime of the battery will be reduced if it is overcharged often.

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If you leave your cell phone on charge before sleeping and wake up in the morning, you will find that your smartphone has stopped charging. In fact, most of the smartphones have these features these days. When the phone is fully charged, it will automatically stop charging, so there is no need to worry about damaging the battery. On the contrary, playing mobile phones on charge can damage the battery. This will also decrease the charging speed of the battery and the temperature of the mobile phone will also increase. The battery might even explode in the hot climate.

When should I charge my mobile phone?

Mobile phone users are also confused about what is the right time to charge a mobile phone? You should not wait for mobile to discharge completely before charging it again. The most suitable time for charging your mobile phone is when the battery life reaches 30%. Moreover, you should not wait for the phone’s battery life to drop below 10% before rushing to charge. When the battery is below 10%, the radiation coming out from mobile phones will multiply. The radiation will be even higher if you make a phone call during this period. So at this time, it is better to plug your mobile phone on charge before it becomes too late to charge it.

Related: Is it good to shut down your phone once a day?

Finally, let me remind you that it is best to stay away from charging mobile phones while sleeping. Don’t keep charging mobile phones on your bed. Radiation is one aspect but safety is more important. The phone will automatically cut off the power supply after a full charge but it can’t be guaranteed that the power supply will be stopped accurately all the time. Moreover, not all phones can automatically stop the flow of power supply. If the battery is old and the temperature is too high, it might explode and result in serious consequences.


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