Is Charging Phone Overnight Bad?

published:2019-05-29
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People usually play with mobile phone then go to sleep and hope get a 100 percent battery power device next morning. So they are facing a choice whether charging their mobile phone overnight or not.

There are mainly two concerns: if a overnight-charge will shorten their phone batteries life, and if there is any safe problem.

for battery life

Here is the thing. Phone manufacturers release many new models every year. So people do not expect to use a phone for more than 2 years. They are more likely to experience new-launched phones.  

On the other hand, lithium battery life is generally 300-500 charge cycles. The lithium battery can provide or supplement 600-1000 times power in its lifetime assuming half power consumption done each time. Therefore, it can be found that the life of the lithium battery depends on the total charge amount of the battery, regardless of the number of times of charging.

"Considering the constant demand for new cellphones, charging overnight might not be a point of great concern for many people." Mr. Zeine said, the founder, chief scientist and chief technical officer of the wireless charging company Ossia.

for safe problem

Smartphones have strict control to battery. Android phones and iphones are both equipped with chips so that they know when to stop charging. In fact, they would stop charging when devices get fully charged to avoid overcharge. 

"In theory, any damage from charging your phone overnight with an official charger, or a trustworthy off-brand charger, should be negligible." Mr. Campos said.

Regarding to wireless charger, it also built a chip to control temperature. It will automatically toggle into standby mode and stop getting overheated when your phone don't require current power any more. In addition, no bared components exposed in the air makes it more safe.

A overnight charge won't do any differences to common consumers.

What do you think about charging your phone overnight? Do you agree or disagree with our opinions? You all could freely let us know your ideas. 

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