[Charging smartphone]What percentage should be left when charging? NG act? – I asked a smartphone repair professional – OTONA LIFE

It is no exaggeration to say that the battery is the life of a smartphone. The timing of charging varies from person to person, but if you charge it in the wrong way, it may put a strain on the battery. If the deterioration progresses, the battery level will decrease quickly, so if possible, you want to charge it in the correct way. So this time, let’s focus on “the best time to charge your smartphone”.

At what percentage do smartphone users charge their phones?

Recognition of the optimal timing for charging varies from person to person…

The first place is by far “20% or less”! (Surveyed by “Saburogu”)

Source:【transfer to ahamo

In the first place, what percentage of the smartphone battery do most people charge? Previously, Review Co., Ltd. conducted a “questionnaire survey on when to charge smartphones” targeting teenagers and older.

When we asked the respondents, “What percentage of the battery remaining on your smartphone are you charging?”, “20% or less” ranked first. From those who answered “20% or less”, “I charge it when it reaches 20% to prevent my smartphone from running out of battery power” and “I have a strong sense of this number because it is troublesome, so when I go on a trip etc. Ideally, it should be kept at 100%.”

By the way, after the second place, it is ranked in the order of “50% or less” and “30% or less”, and the lowest percentage is “after the battery is completely exhausted”. Looking at the comments of the respondents, “I heard that charging when there is too much power will not last long, so I try to do it when it is low” and “Battery life is better if you fully discharge it and then charge it.” I heard it was good.” It seems that people have different perceptions of “the best time to charge”.

I asked a smartphone repair professional the best timing to charge a smartphone

The professional opinion is, “If it’s the latest model, there’s no best timing.”

An unexpected answer from a smartphone repair professional! ?

Not only the results of the questionnaire survey, but also various answers on SNS, such as “You should charge at XX%”. When this happens, it becomes difficult to know what the correct information is. So, in order to investigate the best timing to charge, we asked the repair staff of “Smartphone Station”, which repairs smartphones, for their professional opinions.

――In order to make the battery of the smartphone last longer (do not put a load on it), at what percentage should it be charged? Also, please tell us why.

Smartphone station repair staff: “If it’s the latest model, it basically charges the battery optimally so that it doesn’t put a load on the battery under the control of the smartphone. There’s no such thing as ‘this timing is the best.’ .

However, smartphones are also machines, so there is a “recommended operating temperature”. For example, the recommended operating temperature for an iPhone is between 0 and 35 degrees Celsius, so it is best to avoid charging in places that get extremely hot, such as under the scorching heat of midsummer or on the dashboard of a car.”

From the point of view of a smartphone repair professional, it seems that keeping the “recommended operating temperature” is more important than charging timing to extend the battery life.

NG behavior is “charging while charging”

“Charging while charging” may cause the battery to expand! ?

If the latest model“You don’t have to worry about charging timing”That being said, are there other misconceptions many people have about charging? I asked the repair professional about it.

Smartphone station repair staff: “The most common wrong behavior is ‘charging while playing’. If you are charging while playing games or watching videos, the temperature of the main unit will rise. may lead to swelling of the battery.

Expansion is a symptom that is not too much to say that it is the most depleted condition in the battery trouble. If you want to recharge the battery during the day, I think it’s better to repeat “charge to 80% and stop charging once before using”.

In addition, since the power supply to the battery is gradual due to OS control above 80%, there is no need to force it to 100%.

In order to prolong the life of the battery, it seems that “charging while charging” that leads to “swelling of the battery” is prohibited. It’s an act that tends to happen when you’re relaxing at home or before going to bed, so it’s better to refrain from people who have a knot that comes to mind.

Even during fast charging, “charging while charging” is a cause of shortening the battery life…

Is it safe not to operate the smartphone during fast charging?

What became clear from the professional answers was that in addition to “ charging NG while charging ”, “ there is no need to charge to 100% ”. Personally, it was a surprising answer because I tended to charge it until it was full. By the way, at the end of the answer, he also sent me one point advice on charging.

Smartphone station repair staff: “The fastest way to charge is to put the charging cable into ‘low power mode’ or ‘power saving mode’ and then plug in the charging cable and not touch the smartphone.

If you have a model that can charge quickly, you can charge from 1 digit to 80% in about 30 minutes. If you can’t stand this 30 minutes and repeatedly “charge while charging”, it will be the number one factor that shortens the battery life. People who are used to it need to be especially careful.”

Coverage cooperation: Smartphone Station

“The best timing to charge your smartphone” was discovered by a smartphone repair professional. When you use your smartphone in the future, why don’t you try to “start using it after charging it to 80%”?

● The “Smartphone Station” that repairs iPhones and smartphones cooperated with the interview→here

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