"How long the battery lasts last" for using a smartphone is an important point.When it comes to batteries, it's easy to see how much you can use in a row without charging, but this time you are focusing on the life of the battery.In other words, how long you can use one smartphone without replacing the battery.While the smartphone function is mature and the replacement cycle is growing, it is desirable that one smartphone can be used longer.
スマートフォンを充電する上で、どんなことに気を付ければいいのかNeedless to say, smartphones are used while charging repeatedly, but depending on the timing and method of charging, the battery may deteriorate.Even when charging is not charged, the battery may have a negative effect on some environments using smartphones.
I would like to replace it when the battery is up, but most of the current smartphones have built -in battery models, and users cannot remove them.In order to replace the battery, it is necessary to send it for repair, and if you do not join the warranty service, it will cost around 10,000 yen.
In some cases, the usage of the battery can be used to be unnecessary and expensive.What should we pay attention to to increase the battery life?We asked four carriers: NTT DOCOMO, KDDI, Softbank, and Rakuten Mobile.Rakuten Mobile is the case of the company's original terminal.
In the first place, how many smartphone batteries do you have?The battery deteriorates over time, so the more you use it, the shortened your life.According to the Apple support page, the iPhone is designed to maintain up to 80 % of the original power storage capacity even if the full charge cycle is repeated 500 times.In the full charging cycle, 100 % of the battery is counted once.For example, 75 % consumed in one day and consumed 25 % the next day after charging, one cycle was completed.If the pace that consumes 100 % is about once every two days, it will be a calculation that can maintain 80 % even if it is used for about 2 years and 9 months.
Some models can grasp the current battery exhaustion.In the case of an iPhone, the "maximum capacity" displayed in "Settings" → "Battery" → "Battery status".At the time of purchase, it is 100 %, but it decreases as you use it.
iPhoneでは設定からバッテリーの最大容量を％で確認できるBy the way, I have been using "iPhone 11 Pro Max" for about a year and 10 months, and the battery condition is now "86 %".Although the battery level does not decrease rapidly, I feel that it has become a little easier to decrease compared to the beginning.
So, how many frequency and timing is it desirable to extend the battery life?
Charging after using the NTT docomo battery is also a factor in deteriorating the battery, so we recommend that you charge about 20 % remaining.In addition, it is not always preferable to be fully charged, so it is effective to stop charging just before the full charge (remaining 80-90 %).Depending on the terminal, some models with a charging control function that extends these battery life.
There are many customers who feel uneasy unless the KDDI battery level is 100 %, but it is desirable to keep it about the "8th minute of the belly", and the battery will also deteriorate the battery after using up the battery.Because it is a factor, it is ideal to use it to start charging from about 20 % remaining and only 80 %.Some smartphones have a function to extend the battery life, so we recommend using them.
We recommend that you avoid using and operating smartphones while charging SoftBank, and does not keep charging with 100 % batteries.In addition, if you use it to some extent (20 %), we recommend that you charge to the extent that it does not reach the full charge (100 %).
In order to reduce the number of cycles of Rakuten Mobile charging and discharge, it is better not to charge and charge when the battery capacity is still sufficient.
Charging is not only after 0 %, but it is good to do 20 % as a guide, and it is best to keep it at about 80 % without fully charged.
In the iPhone, if the battery level is less than 20 % or less, an alert that encourages the setting to "low power mode" will appear, but this is the timing to charge.Also, if you turn on "Settings" from "Settings" and "Battery Charging Optimization", you will learn how the iPhone will be charged and decide that it will still be connected to the charger.The charging after % is modified and adjusted to be fully charged at the timing that is removed from the charger.
iPhoneはバッテリー残量が20％以下になると通知をしてくれるので分かりやすい（ゲームのプレイ中だと煩わしいことがあるが……）「バッテリー充電の最適化」をオンにしておくと、充電器から外す直前で100％になるよう、80％以降の充電を緩やかにする場合があるThe number of Android's current models that can make the fully charged 80 % or 90 % and reduce the speed to fully charged are increasing.Sony's "Xperia 1 III" and "Xperia 10 III" will achieve batteries that are less likely to deteriorate even after 3 years with the "dedicated charging" and Xperia's unique "charging optimization technology" to reduce the load on the battery.。Even with the dedicated charging settings, the charging capacity can be set to 80-90 % or the charging time can be controlled.
Xperiaの最新機種では、バッテリーが3年長持ちすることをうたっているThis is often done by the author, but it is said that continuing charging with full charge will also lead to deterioration of battery.Is this true?
Continuing charging in NTT DOCOMO fully charged is a factor in battery deterioration.Charging while operating the terminal corresponds to that.
Continuing charging in KDDI fully charged can cause battery deterioration.This is because charging when the battery voltage is high can cause battery deterioration.
If the softbank battery continues to be charged with 100 %, it can cause deterioration.
If you continue charging with Rakuten Mobile fully charged, you will repeat charging and discharge in a state where the battery capacity remains considerably (90 % or more), so that the number of charging and discharge cycles increases, and the battery deteriorates.
After all, all four companies answered that they could cause battery deterioration.Nevertheless, it is difficult to confirm that it has been fully charged in real time, and it is not realistic to check the battery level from the smartphone screen.Therefore, if it is a compatible model such as Xperia, if you use it during bedtime and set it to be fully charged during the wake -up time, you can prevent overcharging by just getting up in the morning and removing the charger from your smartphone.In the case of the iPhone, if the device is predicted when connected to the charger for a long time after enabling the "battery charging optimization", it will notify the charging completion time.
iPhoneでは充電の傾向を学習し、充電完了時刻を知らせてくれる場合がある"In the wireless charging (electromagnetic induction system), the coil built into both the charging stand and the smartphone may be warm, so it is recommended that you remove it from the charging stand when the charging is over."(KDDI).
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