How many mistakes did you make while charging a lithium battery? How to charge a lithium battery?

How to charge the mobile phone?

This issue can be said to be a topic that has not been exhaustive in recent years. Regardless of the number of teachings and more instructions on the Internet, we can always hear a lot of "wrong" mobile phone charging teachings. And these teachings are "mobile phone need to charge for eight hours to use" "the phone must be used completely without power" "the phone will be unplugged when it is 90% charged" and so on.

First, Lithium battery has no memory effect. Excessive discharge will only accelerate to damage it.

It can be said that "the mobile phone has to run out of electricity and recharge" is the first place in the list of misconceptions. Why is there such a wrong idea?"Battery memory effect, if without the charge would damage battery" this is one of the characteristics of nickel metal hydride rechargeable batteries, which was widely used in lithium batteries before the mainstream of the rechargeable battery really will have to wait for battery can be charged, finished or battery storage capacity will be more with less.

But now, smart phones, tablets, laptops, digital cameras, mobile power supplies and other products are commonly used as lithium-ion batteries. This battery has a very different characteristic from nickel-metal hydride batteries: there is no memory effect and it cannot be over-discharged.

The service life of a lithium polymer battery is calculated based on the "number of charge cycles", that is, the number of times "0~100%" is charged. Simply put, if a lithium battery has 1000 cycles of life, then theoretically as long as "100% used to 0% and then 0% back to 100%" repeated 1000 times, then this battery is almost End of life is dead! But in fact, the physical characteristics of the lithium battery cause it to cause damage to the battery itself when it is over-discharged. If you often use the battery to 0% to charge, then the battery will not control whether you have used it many times, but will directly killed early!

First use restrictions, so the lithium battery is never completely without electricity to recharge the battery use, it is best if you can charge when the battery is full, as far as possible so that the battery can let you the use of long ~ if you often go out for a whole day can't charge, often to go home, battery charging less than 10%, so suggest you might as well buy a power supply with action, don't always make you are in a state of ultra-low power battery.

Second, do not rush to pull up the charge, leave it and then unplug it.

Charging misconceptions ranking second is " to charge up to 100% and unplugged immediately. " In fact, no matter mobile phone or computer, vendor will design the overcharge mechanism, when the battery will automatically switch to computer or mobile phone power supply for power supply, when laptop battery charger to 100% notebook will automatically switch to a power supply, until the battery to 95% before will maintain this state. And if you pay attention to the laptop on the top right corner after charge electricity power display becomes plug design, this is the mobile phone to switch to an external power supply power supply.

Therefore, if you are fully charged, you don't need to rush out of the power supply. When you have to leave the place where you can charge, you can unplug it. Some people may ask, "Is it really okay to plug in the electricity? Unless you will charge the phone for a week, please believe that the electrical appliance manufacturer's ability to prevent overcharge mechanism design, do not make yourself so nervous!

Third, Keep battery power below 20% once in two weeks to maintain battery health.

If you change your charging habits smoothly after reading the above instructions and follow the instructions above to protect the battery, then your battery has taken a big step towards "longevity battery"! But here you need to do one thing: let the battery every two week less than 20% in order to maintain the battery health at a time. First of all, we want to know, lithium battery of battery is a very troublesome, you let it has been charging and discharging it will hang up early; Keep it will hang early discharge to 0%; Even you have not let discharge it will hang up early!

Lithium batteries because of itself physical properties, make the battery if long time do not fully discharge, activate the internal storage structure, can make the battery to die early. But if you let it discharge all the time, it will also make the battery go to death. So in order to solve the problem of the contradiction, the best way is let the battery every two week less than 20% (0%) don't use rechargeable battery, can be good to maintain the health of the battery, let him long time to accompany you!

Of course, this is mainly because you often plug in the electrical appliances to have such a demand. If you discharge the battery below 20% every day, then you don't have to do this extra work.

As for the battery to what extent is the "death"?

In fact, two simple steps can be made clear:

The first is that the lithium battery will swell after it dies. Please note that this is not an explosion. This is just a mechanism to remind you that the battery has broken. If your mobile phone or other device suddenly becomes "fat", please change the battery quickly!

Second, if the battery doesn't get fat, but your phone obviously has less power stored than before. If it is not because your app is causing power consumption, I suggest you send it for repair.

The page contains the contents of the machine translation.