How to charge the newly bought lithium battery?

question 1: how to correctly charge the newly bought mobile phone battery? 1. how to charge a new battery

? In the use of lithium batteries, it should be noted that after a period of time, the battery will enter a dormant state, when the capacity is lower than normal, and the service time will be shortened. However, the lithium battery is easy to activate, and it can be activated after 3-5 normal charge and discharge cycles to restore normal capacity. Because of the characteristics of lithium battery itself, it has almost no memory effect. Therefore, the new lithium battery in the user's mobile phone does not need special methods and equipment in the activation process. Not only in theory, but from my own practice, it is best to use the standard method to charge this "natural activation" way from the beginning.

? For the "activation" of lithium batteries, there are many sayings that the charging time must exceed 12 hours and be repeated for three times in order to activate the batteries. This statement that "it takes more than 12 hours to charge for the first three times" is obviously a continuation from nickel batteries (such as nickel cadmium and nickel hydrogen). Therefore, this statement can be said to have been misinformed from the beginning. The charging and discharging characteristics of lithium batteries and nickel batteries are very different, and it can be clearly told that all the serious formal technical materials I have consulted emphasize that overcharge and overdischarge will cause great harm to lithium batteries, especially liquid lithium-ion batteries. Therefore, it is best to charge according to the standard time and method, especially not to charge for more than 12 hours. Usually, the charging method introduced in the mobile phone manual is the standard charging method suitable for the mobile phone.

? In addition, the mobile phone or charger of lithium battery will automatically stop charging after the battery is full, and there is no so-called "trickle" charging of nickel electric charger that lasts for more than 1 hours. In other words, if your lithium battery is fully charged, it is also white charged on the charger. None of us can guarantee that the characteristics of the battery's charge and discharge protection circuit will never change and the quality will be foolproof, so your battery will be on the verge of danger for a long time. This is another reason why we oppose long charging.

? In addition, for some mobile phones, if the charger is not removed after charging for more than a certain period of time, the system will not only stop charging, but also start discharging-charging cycle. Perhaps the manufacturer of this practice has its own purpose, but it is obviously unfavorable to the life of batteries and mobile phones/chargers. At the same time, long-term charging takes a long time, often at night, but according to the situation of China's power grid, the voltage at night in many places is relatively high and fluctuates greatly. As mentioned earlier, lithium batteries are very expensive, and their ability to withstand fluctuations in charge and discharge is much worse than that of nickel batteries, which brings additional dangers.

? In addition, another aspect that cannot be ignored is that lithium batteries are also not suitable for overdischarge, and overdischarge is also very unfavorable to lithium batteries. This leads to the following questions.

? 2. when should I start charging in normal use

? In our forum, we can often see this statement, because the number of times of charging and discharging is limited, so we should use up the battery of mobile phone as much as possible to recharge it. But I found an experimental table about the charge and discharge cycle of lithium-ion batteries, and the data about the cycle life are listed as follows:

? Cycle life (1%DOD):> 1 times

? Cycle life (1% DOD): >; 2 times

? Where DOD is the abbreviation of discharge depth. It can be seen from the table that the number of rechargeable times is related to the depth of discharge, and the cycle life at 1%DOD is much longer than that at 1%DOD. Of course, if it is converted into the actual relative total charging capacity: 1%*1=1, 1%*2=2, the latter's full charging and discharging is still better, but the previous netizen's statement needs to be revised: under normal circumstances, you should recharge the battery with reservations, but if your battery can't last the whole day the next day, you should.

? When you need to charge to cope with the upcoming important events that will lead to busy communication, even when the battery still has a lot of remaining power, you only need to charge in advance, because you have not really lost the life of "1" charging cycle, that is, ".x" times, and often this x will be very small.

? The principle of recharging the battery after it is used up is not to make you go to extremes. Like long-term charging, it is widely said that "try to use up the battery of the mobile phone, and it is best to turn it off automatically". This practice is actually just the practice on nickel batteries, and the purpose is to avoid ... > >

question 2: how to use the newly-bought mobile phone battery? How long does it take to charge it? Now many batteries are lithium-ion batteries. Lithium-ion batteries have no memory performance but are very inert. It takes about 12 hours to activate, but now manufacturers have done activation treatment before leaving the factory, so in the first few times, it is generally said that it will not take 12 hours to charge the new battery in the first three adjustment periods. When buying or charging the battery, the salesperson will tell us that it is wrong to charge it for 12 hours in the first three times.

that's the charging time of the previous nickel series batteries. The correct time is 4-6 hours, and it is best to turn off the battery after use, which is natural discharge. After the adjustment period, it is ok to charge it for another half an hour, which is about two and a half hours. Generally, the battery needs to go through about 1 cycles of charging and discharging to achieve the best effect! It is normal that the standby time of 2128 series batteries is relatively short after the first few times of charging. After about 1 cycles of charging and discharging, the ideal standby time can be reached, usually about 4 days. Charge for 4-6 hours for the first three times, and then charge for 2.5 hours each time.

There are two popular sayings for the first three times:

1. When buying a machine, charge for more than 12 hours.

2. It is better to charge for another 1-2 hours after charging.

The first one is the charging method of Ni-MH battery, which used to be Ni-MH battery. Therefore, the first three times it is best to run out and then flush for 12 hours, so that the battery can be fully activated to achieve good results. This is a convention, so the seller is used to it, but it has changed now.

lithium batteries don't need to be charged for that long. Lithium battery is inert, but it is very small, and it has been pre-activated before leaving the factory, so there is a part of electricity in the new battery. This inertia can not be solved after three long-term charging. In the process of later use, it will gradually get better. Using the battery itself is also an act of activating the battery, and the memory ability of lithium battery is very small, so there is no need to discharge it. Pay attention to the voltage when charging. Lithium battery is protected by over-charging, which starts with high current charging, and then trickle charging. After full charging, the power is automatically cut off, and the re-charging effect is not great. Moreover, over-charging may cause heavy discharge cycle, which may cause battery damage after a long time. This is the case for the first three times, and it can be used at the same time in the future. It is recommended to use it after use, which can prolong the life of the battery. After charging, just charge for another hour or so after charging. Frequent charging is not recommended, because the life of lithium battery is related to the number of times it is charged. Generally, the life of lithium battery varies according to its capacity, but it is basically 3 to 7 times, so frequent charging and discharging will affect the life of the battery and be bad for the charger.

a battery can be cycled and discharged for about 5 times, and the standby time of 2128 series batteries can reach about 4 days after several cycles of cycling and discharging, so it can be used for about 3 years after calculation. After 3 years, 2128 has been eliminated, so one battery is enough! The life of the battery is measured by the number of times of charge and discharge. If the battery is not used up, it will shorten the life of the battery. Generally, the life of the current lithium-ion battery is about 5 times of charge and discharge. Therefore, it is recommended to use up the battery as much as possible before recharging.

If users want to prolong the effective service life of the battery, besides ensuring the quality of the charger, correct charging skills are also essential, because poor quality chargers or wrong charging methods will affect the service life and cycle life of the battery. Here are the charging skills:

1. Before the battery leaves the factory, the manufacturers have activated it and precharged it, so the batteries are fully charged. Some friends say that the batteries are charged according to the adjustment period and stand by.

2. if the newly purchased battery is lithium ion, the first 3~5 times of charging are generally called adjustment period, and should be charged for more than 14 hours to ensure the full activation of lithium ion activity. Lithium-ion battery has no memory effect, but it has strong inertia. It should be fully activated to ensure the best performance in future use.

3. Some automatic intelligent fast chargers only indicate that they are 9% full when the signal light changes. The charger will automatically change to charge the battery at a slow speed. It is best to use the battery after it is fully charged, otherwise it will shorten the use time.

4. Before charging, the lithium battery doesn't need special discharge, and improper discharge will damage the battery. Try to charge ... > >

question 3: how to charge a lithium battery? How to charge the newly bought lithium battery for the first time? In the use of lithium batteries, it should be noted that after a period of time, the battery will enter a dormant state, when the capacity is lower than normal, and the service time will be shortened. However, the lithium battery is easy to activate, and it can be activated after 3-5 normal charge-discharge < P > cycles to restore the normal capacity. Because of the characteristics of lithium battery itself, it has almost no memory effect. Therefore, the new lithium battery in the user's mobile phone does not need special methods and equipment in the activation process. Not only in theory, but from my own practice, it is best to use the standard method to charge this "natural activation" way from the beginning.

For the "activation" of lithium batteries, there are many sayings: the charging time must exceed 12 hours, and it must be repeated for three times in order to activate the batteries. This statement that "it takes more than 12 hours to charge for the first three times" is obviously a continuation from nickel batteries (such as nickel cadmium and nickel hydrogen). Therefore, this statement can be said to have been misinformed from the beginning. The charging and discharging characteristics of lithium batteries and nickel batteries are very different, and it can be clearly told that all the serious formal technical materials I have consulted emphasize that overcharge and overdischarge will cause great harm to lithium batteries, especially liquid lithium-ion batteries. Therefore, it is best to charge according to the standard time and method, especially not to charge for more than 12 hours.

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Question 4: How long does it take to charge a newly bought lithium battery for the first time? Lithium-ion batteries are different from nickel-cadmium batteries. Just see the battery prompt to be full, and there is no need to charge it for 12 hours or more. Long-term charging is aimed at nickel-cadmium batteries with memory function. Lithium batteries, whether liquid electrolyte batteries or polymer lithium-ion batteries, have no memory effect and need not be charged for too long.

question 5: how can I fully activate the newly bought mobile phone battery by charging it? Activation of mobile phone battery

It is a very controversial issue that the mobile phone battery does not need to be activated by charging when it is used for the first time.

generally speaking, before the battery leaves the factory, the manufacturers have activated it and pre-charged some electricity. However, after the battery leaves the factory, it will take as short as one month and as long as six months to reach the user with the mobile phone. At this time, because the battery electrode material will be passivated, manufacturers and distributors usually advise users to "activate" the battery again when using it for the first time, that is, to fully charge and discharge the battery for 3-5 times, so as to make it reach the best state in future use.

the so-called activated charging means deep charging and deep discharging, that is, after fully using the photoelectric quantity, it will be continuously charged for 12-16 hours. This is done for 3-5 times continuously to ensure the full activation of lithium ion activity.

However, there is another view that lithium ion has no memory effect and no possibility of activation, so it is meaningless to charge for more than ten hours. At present, two diametrically opposed views are tit for tat, which makes people unable to agree.

on the other hand, it's better to believe it's there than it's not, and charging the new battery for a few times for a long time will not do any damage to the battery.

maintenance of mobile phone battery

is it better to charge the seat or directly?

if your mobile phone is equipped with a charger, you should try to charge it with the charger at ordinary times. Seat charging has the ability to identify data when charging, and it is charged with a small current. Although it takes longer than direct charging (travel charging), this charging will make the battery more fully charged.

at the same time, you should try to use special sockets, and don't use sockets for chargers, televisions and other household appliances.

does it matter if you start charging?

it's best to turn off the phone first when charging. Because in the process of charging, the circuit board of the mobile phone will heat up. At this time, if there is an incoming call, the current may increase instantly, causing damage to the internal parts of the mobile phone.

how long is the appropriate charging time?

the longer the charging time, the more fully charged the battery, and the more durable the battery, which is incorrect. In fact, the capacity of the battery is certain, and the protection circuit of the charger will be automatically disconnected after it is fully charged, but there will still be a small trickle. Therefore, the correct charging time should be one hour after the indicator light changes from red to green, which will be sufficient and will not damage the battery.

however, because the charger has protective measures for the battery, charging for a long time will not cause great damage to the battery. But it is best not to exceed 24 hours.

how to store unused lithium batteries?

many people think that unused lithium batteries can be used normally in the future as long as they are stored. Actually, it is not. Even if the lithium battery is not used, it will discharge at the rate of .2%-.3% every day, and after storage for a period of time, even if it is not recycled, a small part of its capacity will be permanently lost, and its life will also be attenuated. Therefore, the storage of lithium-ion batteries should not exceed one year.

if the user has idle batteries, the storage conditions recommended by experts are that the charging level is 4% and the storage temperature is lower than 15 degrees Celsius or lower. Note that if it is necessary to store a battery that has not been used for a long time, it is better to store it after charging rather than after fully discharging, so as to prevent the battery from uncontrollable over-discharge during storage.

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