Shulou(Shulou.com)11/24 Report--

"the battery is low and 20% of the battery is left."

People who often hold their mobile phones in their hands have long been familiar with this. Press the "turn on low Power Mode" button and continue surfing the web. After all, 20% of the electricity will last the phone for a long time.

Come on, charge your phone!

Low-power notification is not only a reminder for you, but also a call from your mobile phone! Almost all mobile phone manufacturers list similar reminders in their guidelines: don't have to wait for the phone to charge at less than 20% (or 10%).

If you take a closer look at the guide provided by the manufacturer, it turns out that there are so many points for attention in the matter of charging.

It's too long to read the version.

The most worry-free way to charge: keep the battery of your phone at 20%, 80%, and charge at any time.

Avoid high (low) temperature when charging, remove the phone case when heating and avoid excessive use of the phone.

Use the original charger.

How many holes are there in charging? Charging a mobile phone has always been a "technical job". Since the earliest mobile phones needed to be "automatically turned off and recharged", now the battery reaches 80% and automatically stops charging. A variety of charging techniques are a little elusive.

In order to make people more anxious to understand the situation of mobile phones, manufacturers have also gradually introduced the "battery health" function. That's great. Not only do you have to worry about the phone running out of power every day, but you also have to worry about the loss of battery capacity. If you charge a battery, you have to worry about whether the charging method will hurt the battery.

▲, I don't even have time to care about whether I am healthy or not, and I have to care about the health of the battery. Apple.com

We sorted out the doubts that colleagues often encounter when charging, and asked everyone to put aside their "charging anxiety".

The mobile phone is running out of power and recharging, isn't it good for the battery? It's really bad.

At present, most mobile phones on the market are using lithium-ion batteries. If there is any "fatal injury" to this kind of battery, overcharging and discharging must be at the top of the list.

When the lithium-ion battery is in use, the charge and discharge is accomplished by the movement of lithium ion between the positive and negative electrodes. During discharge, lithium ions run out of the anode material and into the cathode material, and the charge is reversed. Although lithium ion runs around, it will eventually combine with the positive and negative pole structure. During excessive discharge, the stability of the anode material will be destroyed. When overcharged, the lithium ion is "trapped" in the anode material and cannot be released again. This structural change leads to a reduction in the "capacity" of the battery, and the change is irreversible.

You don't have to worry too much! Mobile phone manufacturers also take this into account and will provide relevant protection mechanisms to avoid overcharging and overdischarge at the time of design. Although you don't have to be afraid of extreme charging and discharging, you still need to be careful if you want to keep the battery at its best: too low a state of charge can speed up the damage to battery health.

The manufacturer will generally tell you in the charging manual: don't wait for the phone to run out of power before charging. The standard of running out of electricity is 10% and 20%. Generally speaking, it is necessary to recharge in time and try not to let the remaining power fall below 20%.

▲ Samsung recommends that mobile phone batteries should not be less than 20% [1]

The occasional low battery is not a big problem, just don't torture your phone all the time.

Why can't I continue to charge when I charge 80%? It is the manufacturer that is "protecting" the mobile phone battery.

Just like discharge, mobile phone manufacturers have taken the problem of overcharging into account in their design. Even so, it is not optimal for battery health to be fully charged all the time. So many manufacturers through algorithm design, let mobile phones learn users' daily charging habits. For example, if you are used to charging all night, the system will stop charging at about 80% and calculate the time to fill up gradually before you get up.

Optimized charging function in ▲ iPhone

Then when I am in a hurry to use it, what should I do if I am always dissatisfied with the phone? You can turn off the option of "optimize charging" in the battery settings of your phone.

Generally speaking, recharge in time, but don't be too full.

▲ Huawei's official website recommends that the battery should be kept in the middle range [2]

Can I play with my cell phone while charging? Yes, but don't hold on to your phone.

Temperature is also one of the "rivals" of mobile phone batteries. The internal temperature of a lithium-ion battery will rise when it is charged. If you keep running large software at this time, the overall temperature of the phone is too high, which affects the heat dissipation, which may lead to damage to the active material in the lithium-ion battery and affect the battery capacity.

Reference temperature range of Li-ion batteries provided by ▲ Huawei official website [3]

At present, the working temperature range of mainstream mobile phones is 0-35 degrees Celsius, which is suitable for lithium-ion batteries. When the temperature is too low or too high, the internal protection settings will slow down or even stop charging. If you still use the phone to run large software while charging, or even trigger the high temperature protection of the system, not only will the charging stop, you will not even be able to continue to use the phone.

If there is no emergency, you might as well leave the phone and charge it early, so as to avoid being limited by the charging line.

No more charging heads. Can I mix the charger? Sure. Identify the qualified products of regular merchants, but the charging speed may slow down.

Now mobile phone manufacturers have become accessories manufacturers, not only buy mobile phones do not send chargers, "original chargers" are also sold super expensive. Officials are also ambiguous in using what is said in the document: third-party chargers? Yes, but not recommended.

Today, the fast charging function has become the main highlight of mobile phone manufacturers, and the realization of the function is inseparable from the charging head that supports fast charging. The issue of compatibility is involved here. Different manufacturers use different fast charging protocols. If users use fast charging heads that do not support the same protocol, the result is "slow charging".

Of course, you don't have to worry about charging the iPhone with an iPad charger-because the battery management chip in the phone adjusts the input voltage and current. The specific content can be seen in this article: "will something happen if you charge the iPhone with a mixed iPad charger?" "

From a convenient point of view, it is most convenient to buy the official configuration directly. Want to use a third party is not bad, as long as identify regular manufacturers on the line. If you want to experience the fast charging function of your phone, you can ask whether the merchant supports the relevant protocols for a specific phone model.

Can I use the USB port of my computer to charge my phone? Yes, the point is still slow.

The USB port is designed to supply power to external devices, but not to charge. As a result, the traditional USB port output on the computer is only 5V 100mA, which is even smaller than the ancestral 5V 1A of iPhone.

If you forget your charging head and all you have is a computer and a cable, you can also look at the signs next to different USB ports. Some computers will have a USB port marked with a lightning sign, which can continue to provide power when the computer is turned off. Although a little slow, but the notebook as a large charger, it is not bad.

The Logo of ▲ USB is different and represents the additional function (Dell.com).

Finally, it is time to appeal to "the mobile phone is a tool, don't bother so much". But considering my own wallet, there are some "holes" that can be avoided.

In short, I wish you all good health and healthy batteries!

Referenc

[1] Samsung Mobile: 11 tips to extend and improve your Samsung Galaxy battery life. Https://www.samsung.com/nz/support/mobile-devices/11-tips-to-extend-and-improve-your-samsung-galaxy-battery-life/

[2] how Huawei phones / tablets extend battery life and battery maintenance. Https://consumer.huawei.com/ cn / support / content / zh-cn00409982/

[3] Huawei: battery performance and application introduction. Https://consumer.huawei.com/ cn / support / battery-charging/

[4] Huawei: can I use a non-standard charger or data cable to charge my phone? Https://consumer.huawei.com/ in / support / content / en-gb00409978/

[5] iPhone battery and performance. Https://support.apple.com/ zh-cn / HT208387

[6] vivo battery. Https://www.vivo.com/ en / support / questionList?categoryId=10055

[7] OPPO Battery Life: Tips on How to Make It Last All Day. Https://support.oppo.com/sg/answer/?aid=neu146

[8] realme:Can I use a non-standard charger or data cable to charge my phone? https://www.realme.com/in/support/kw/doc/2053375?queryId=5ed0ce9e08da42929170e213f20172fa&articleIndex=6

[9] one plus mobile phone: slow charging / no fast charging. Https://www.oneplus.com/ support / answer / detail / op169

[10] Xiaomi phone: the correct charging method for a phone or tablet. Https://www.mi.com/ service / search?search=% E6% 89% 8B% E6% 9C% BA% E6% 88% 96% E5% B9% B3% E6% 9D% BF% E7% 9A% 84% E6% AD% A3% E7% A1% AE% E5% 85% 85% E7% 94% B5% E6% 96% B9 E5% BC%8F

Here's the truth behind the biggest (and dumbest) battery myths. Https://www.wired.co.uk/article/how-to-improve-battery-life-tips-myths-smartphones

[12] Loveridge, M. J., Tan, C. C., Maddar, F. M., Remy, G., Abbott, M., Dixon, S.S.,... & Greenwood, D. (2019). Temperature considerations for charging li-ion batteries: Inductive versus mains charging modes for portable electronic devices. ACS Energy Letters, 4 (5), 1086-1091.

This article comes from the official account of Wechat: fruit Shell (ID:Guokr42), author: Owl Editor: window knocking Rain

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