How do you charge your phone battery?

Q: the mobile phone battery hasn't finished filling unplug, hadn't run out the battery it will affect the service life of battery charging or capacity? Daughter-in-law often blame me both way hurt the battery life, this has scientific basis, for professional answer.

The first directly answer the question first:

Cell phone battery is pulled it down all use, will not affect the battery life.But if conditions permit and take the trouble to connecting line charges will be more conducive to battery life.

Hadn't run out the battery charging, the battery life is good.On the contrary, if the battery every time use is very low, even light, to the harm of the battery life.

It is extended to read:

Lithium ion batteries recession mechanism has a lot of, in general can be divided into two kinds of abuse of recession and normal recession.

The misuse of recession can be avoided, including overcharge, discharge, low temperature, high power charging and discharging, and so on.For mobile phone usage scenarios:

Overcharge, circuit protection of electronic equipment, general won't happen this kind of situation, so users don't have to worry about.

Discharge: this is a fuzzy concept.Generally speaking, as far as possible do not use mobile phone in charge below 20%, especially not in 5% power following the use of mobile phones, will cause irreversible damage to the battery.

Low temperature: mainly refers to the low temperature charging hazard.Electronic devices generally have protected the (device) at low temperature is not filling in electricity, as a result, users don't have to worry about.

High power charge and discharge, discharge of electronic devices, is generally mild.Has been playing a game, mobile phone can also hold three or four hours, the most is 0.2 C discharge, very mild, users don't have to worry about.By charging, the charger and the circuit protection of electronic equipment, users don't have to worry about.

Normal recession is unavoidable, the main influence factor is the depth of discharge points and let stand for power status.

Depth of discharge points: can also be called discharge cycles, such as from 100% to 50%, it is 0.5 a cycle.It means that, with the more at ordinary times, so the faster the recession.But buying is to use the mobile phone, can use.

Let stand for power status: this disputed in academic.The mainstream view is that the higher the power the faster the recession.Put a month means that 100% of the battery, put a month, and 50% of battery capacity of the former recession.

Therefore, recommend the use of habits?As follows:

First of all, to avoid abuse.To remove part of the circuit protection, users need to be aware of is that try not to use the cell phone battery is very low, take charge with treasure.

Second, reduce under the normal use of a recession.And, of course, this is and use it every time, in order to protect the battery is not playing mobile phone?Here's advice is: don't worry, just plug line charging the mobile phone charge.In this case, cell phone from the external power, equivalent to reducing the discharge cycles.

Finally, the use of "optimal" habit is: keep your battery in 30% - 50% of the low battery state, until two hours to go out, full of to 100% again.Thus to reduce the "high power under the state of rest time".- of course, this strategy for mobile phones and other consumer electronic devices is not applicable, effort and cost out of proportion.But for electric vehicles, battery very expensive, is worth to develop such a smart charger.In fact, many institutions are doing.

According to the review summarizes each friend's three questions:

1. Apple store or a book or experts said the battery to every once in a while and full of light, will be able to maintain life!?

A: apple store or a book or expert, it should be said is the previous generation rechargeable batteries, nickel-metal hydride batteries, memory effect.The lithium ion battery, whether in theory or practice, has never been observed any memory effect.Therefore, apple store or a book or experts of the instructions, there is no basis.

2. Insert the charging line with your cell phone, that's not while charging, discharge, loss of battery is bigger?

Answer: the question of a friend, is imagine became "reservoir" model of the battery.Reservoir import and export, import likely in water, and exports in the water.Under this model, it is possible to the surface height unchanged unchanged (power), and actually flow a lot of conditions.Attenuation is the battery life, large flow is not decay quickly?The idea of the problem is that the battery is not a reservoir, it has no two mouth, there is only one mouth, the mouth, or in charge, or in discharge, there will be no charge and discharge at the same time.

3. Insert the charging line with your mobile phone, will explode?

A: there should be a video phone explosion case, but I can't distinguish which is the true news, which is false news.Such as netease mobile phone channel, if apple doesn't renew will appear the apple mobile phone explosion, Samsung will appear not renew Samsung mobile phone explosion of news...

Try to analysis and charging while playing mobile phone, can make the charging fever (derived from the battery internal resistance, power comes from the charging line) and electricity heat (derived from the CPU and screen, power comes from the charging line) of the two kinds of heating effect occur at the same time, the temperature will be higher, which could explode the risk (if the battery to be of poor quality).

Ultimately, explosion is battery safety, not battery life issues, some digress.

@ Dai Weijie questioned: "unused condition, such as using 50% recharge and used 10% recharging, the difference is very big, the first is bad for battery life, the second.".

A: from the point of view of question, I understand and agree that he wanted to express meaning, but in fact he is not contradictory views and conclusions of this answer.Were put forward such a question, @ Dai Weijie mainly on Zhihu and academic periodicals, I think, is not the same platform, the demand of the audience is not the same, so the conclusion is derived when skip some tedious steps for analysis.I think Zhihu on readers need most is to explain the mechanism of analogy and intuitive conclusion, if instead of a long reach the effect of spreading knowledge.

But since the @ Dai Weijie questioned.So for this problem, I just a thorough answer, for a settlement.

The battery life decay mechanism is mainly divided into two kinds:

The first for loop attenuation.Imagine into a tube of the battery, charging is rolled up, discharge is pulled down.Complete lu an up and down is a complete cycle, rolled to a half half a cycle, lu long battery is broken, this is known as the loop attenuation.And circulation mainly charge decay, is what happened when rolled up.

The second for static attenuation.That is to say, the batteries in there quietly not lu, myself will be broken.Broken rate depends on the position of the hand, the higher the position of the hand (the higher the power), the faster the broken.

Attenuation of two orders of magnitude is different.In terms of mobile phone batteries, basically every day in lu, the damage to the life cycle attenuation attenuation at least an order of magnitude larger than the rest.So what is our policy?According to grasp the main contradiction of philosophy, marxist philosophy should be the first priority to minimize the loop attenuation, reduce the depth of lu and number;Second reducing static attenuation, reducing the heights of the hand.

After telling the above principle, we in return overdo to see "unused condition, such as using 50% recharge and used 10% recharge", to express the meaning should be that "10% of static attenuation slower in 50%".

For most people, and for the use of mobile phones, when he is faced with "I am 50% electricity make mobile phone batteries, or 10% of the battery status" decisions, usually in the following situations:

Case1: "I now mobile phone charge 50%, although the charging line, side, I have decided to use 10% to charge".Decay - this is equivalent to increase the circulation, and to reduce attenuation, let stand is not worth the cost.Although said, down from 50% to 10% of lu discharge attenuation, but definitely want to put the electric charge rolled back, is running out.

Case2: "I now mobile phone charge 10%, but temporarily not charging, ready to wait 2 hours to recharge before going out to 50% or 100%" - this strategy, without any increase in circulation attenuation speed, is to reduce the static attenuation, optimize battery life.This kind of situation I answer in the original "optimal" strategy is also mentioned.This kind of "optimal" strategy depends on the implementation of the "smart charger", and in order to protect the cost only a few yuan mobile phone batteries, to add a smart charger, cost is not cost-effective, also don't like the consumers in the market.Therefore this strategy generally is not feasible.

Case3: "I now mobile phone battery is 100%, 10% electricity today plan.I'm going to breath used 10%, rather than use 55% charge first, again with 55% "- indeed," relief used 10% "strategy, is better than" first used 55% charge, again with 55% "to have the advantage.But the price of this advantage is to give up halfway charging, and increase the risk of the electric light.This strategy is a prerequisite for "I'm 100% sure today I only use 90% of our electricity, not more".In fact this problem can be analog electric car range anxiety problem (Rangeanxiety), it is a great factor hinder the popularization of the electric car.To the ordinary mobile phone consumers, this strategy is not feasible in general.

The above answer may not be perfect, but will be able to put forward the issue of the researchers, are enough to understand I want to express meaning.Therefore:

The answers to the most directly in front of the conclusion are the same.

The page contains the contents of the machine translation.