Proper application of lithium batteries

The battery has a specific discharge rate, just like the power battery will indicate the discharge current, discharge at the rated current, it can achieve hundreds of thousands of cycles. However, if the non-rated current is used, the battery life is very affected, whether the current becomes larger or smaller, of course, the current may become smaller or less. For 3C batteries, I don't know much, please don't feel free to check in. Regarding the charging problem, the main said that fast charging and overcharge and explosion problems, for the cylindrical battery, is indeed! ! Fast rush + overcharge will increase the probability of explosion, the battery will be self-protecting soon, and then it will overheat, and then it is a bang, quite common. However, if it is a small current + overcharge, the possibility of explosion will be much lower. If the battery safety performance is passed, there may even be a probability that it will not explode. For battery life, overcharge and high current are necessary conditions, that is, whether it is overcharge or high current charge, the battery life will be greatly reduced.

1. Lithium battery, no matter if it is not used, the "shelf life" is 3 years, and the decay is very fast after three years. There is also a full charge cycle, which I will not explain more, and the attenuation is very fast after about 400-500 times. It depends on whether you use it for 3 years or the number of times.

2. In addition to being afraid of low battery, lithium batteries are also afraid of overheating, especially when charging. If your jacket has poor heat dissipation and is hot during charging, it is best to remove the sleeve while charging. The long-term use of lithium batteries is not to be stored in the refrigerator after charging to 40%, but remember not to freeze.

3. Don't wait until the power consumption is recharged, which will speed up its loss. Lithium batteries are relatively low in power consumption, and long-term 40%-60% power can make it the longest life, but for equipment that is often used, this is impossible, but you can always make it 100%, which is often Charging, rushed out. It does not overcharge, and the power of the power supply is used at this time, and the battery does not waste the charge cycle, so it is beneficial to extend the life. You only need to fill it once a month, this is to calibrate the battery ruler. 4. It can be used when charging. Some people say that charging will cause slow charging. Is the battery charging while discharging? Actually not, there are two circuits in the phone, one for charging the battery and one for powering the machine directly through the AC. The slow charging is because a part of the current is used by the machine, so the charging current is small, and the usb charging is especially noticeable because the current itself is small. However, it is worth noting that the small current slow charging is the preferred charging method of the lithium battery, so that the generated heat is small, which is more conducive to its life. Also, don't play games or other heavy loads while charging! The reason is not that the power consumption is large, but the same as 2, it will generate a large amount of heat, thereby reducing battery life. Generally speaking on the Internet, there is no problem in sending information. It is not good to call in the hand for a long time. It is recommended to use headphones.

5. After charging and then using it on the power supply, it will not cause any harm to the battery, because it is directly powered by the power supply, which reduces the number of charging and also helps to extend the battery life. Many people will refute that my notebook has been plugged in, and the battery will be finished in a year. Notebooks are different from mobile phones. This is often caused by heat. Notebooks with poor heat dissipation have a very slow battery life, even if you don't use them. If you always play the game with the power supply, it may cause the phone to overheat because of the high heat generated by the power supply. This is not good. In short, as long as it is not hot, there will be no problem. You can always plug in the power before going out. [Personal thinks that safety is the main thing, and some people care best.] 6. (To be discussed) Always charge the battery when the battery is above 90% but below 100%, which is always "toppingoff". Thinkpad notebooks have a mechanism that allows the battery to not charge more than 90%. If the mobile phone also has a charging switch, we can safely use the external power for a long time. It is perfectly fine to charge the battery continuously from 20% to 80%.

7. There is no harm in overnight charging, because you are not using it, it does not generate heat. Personally think that overcharging is always not a good thing. It is best not to charge at night. In some areas, the voltage is unstable at night and it is harmful to the machine! !

The correct use of lithium batteries, lithium-ion batteries have a long life

We all know that lithium-ion batteries are limited in the number of times they are charged, but at the same time, lithium-ion batteries are like all other things, and the pool has a long life. So next time, when you want to buy a battery, remember to look at the date of production of the lithium-ion battery. Of course, the newer the better. Because your lithium-ion battery begins to "dead" from the moment it leaves the factory. The life of a lithium-ion battery depends on many factors. The best case may be that your lithium-ion battery will lose 20% of its maximum charge per year, from the time it leaves the factory.

The correct use of lithium batteries Second, do not let your equipment completely no electricity

Perhaps you have thought about why your mobile phone, PDA or iPod will light up the LCD screen when you are running out of power, and tell you, "Your battery is exhausted" and then automatically shut down. The reason is simple, because there is an internal circuit in the phone that automatically shuts down when the battery is too low. This circuit is set to protect the phone. You can understand this: If your lithium-ion battery is too low, it may permanently damage your lithium-ion battery. So you can plug in the power supply as much as possible at your convenience.

Remember that the "one time" charging cycle means that if you charge 50% of the electricity on the first day, it will be charged at night and 50% will be used the next day. This is a loop.

Uninterrupted repeated charging of a lithium-ion battery does not reduce battery life.

The correct use of lithium batteries

Lithium-ion battery charging will not be overfilled, it has internal circuit protection, lithium-ion battery is most afraid of too high a problem, more than 40 degrees of temperature will reduce the amount of lithium-ion battery can be charged.

In the use of lithium batteries, it should be noted that the battery enters the sleep state after being placed for a period of time. At this time, the capacity is lower than the normal value, and the use time is also shortened. However, the lithium battery is easy to activate, as long as it is 3-5 times normal. The charge and discharge cycle activates the battery and restores normal capacity. Due to the characteristics of the lithium battery itself, it has almost no memory effect. Therefore, the new lithium battery in the user's mobile phone does not require special methods and equipment during the activation process. It is best to use a standard method of charging this "natural activation" method from the beginning.

For the "activation" problem of lithium batteries, many sayings are: charging time must be more than 12 hours, repeated three times in order to activate the battery. This "first three charges to charge more than 12 hours" is obviously from the nickel battery (such as nickel cadmium and nickel hydride) continues to say. So this statement can be said to be misinformation at the beginning. Lithium battery and nickel battery charge and discharge characteristics are very different, and can be very clear to tell everyone, I All the serious formal technical materials reviewed have emphasized that overcharging and over discharging can cause huge damage to lithium batteries, especially liquid lithium ion batteries. Therefore, charging is best done according to standard time and standard methods, especially not exceeding 12 hours of extra-long charging. Usually, the charging method described in the mobile phone manual is the standard charging method suitable for the mobile phone.

In addition, the lithium battery phone or charger will automatically stop charging after the battery is fully charged, there is no so-called “turbulent” charging that the nickel battery charger lasts for 10 hours. That is, if your lithium battery is full On the charger is also white charge. And we cannot guarantee that the characteristics of the battery charge and discharge protection circuit will never change and the quality is foolproof, so your battery will be on the edge of danger for a long time. This is also against long charging.

In addition, on some mobile phones, after charging for more than a certain period of time, if you do not remove the charger, then the system will not stop charging, but will also start the discharge-charge cycle. Perhaps the manufacturer of this practice has its own purpose, However, it is obviously unfavorable for the life of batteries and mobile phones/chargers. At the same time, long charging takes a long time and often needs to be carried out at night. In the case of China's power grid, the voltage at night is high in many places. And the fluctuation is large. As mentioned above, the lithium battery is very delicated, it is much less resistant to fluctuations in charge and discharge than nickel, so this brings additional danger.

In addition, another aspect that cannot be ignored is that lithium batteries are also not suitable for over-discharge. Over-discharge is also disadvantageous for lithium batteries.

2. When should I start charging during normal use?

Under normal circumstances, you should reserve the charge according to the principle that the remaining battery power is used up and recharge, but if your battery is not likely to last for the whole day on the 2nd day, you should start charging in time, of course, if willing to carry the charger to the office is another matter.

And you need to charge to cope with the expected important events that will cause the communication to be busy, even if the battery still has a lot of power, then you only charge in advance, because you have not really lost "1" charge cycle life. , that is, "0.x" times, and often this x will be small.

The principle of recharging the remaining battery power is not to go to extremes. It is said that it is as widely spread as long charging, that is, "try to use up the battery power of the mobile phone, it is best to use automatic shutdown." It is only the practice on nickel batteries, the purpose is to avoid the memory effect, unfortunately, it is also spread on the lithium battery. Some people have been using the warning of the low battery of the mobile phone, but still do not charge and continue to use the automatic shutdown. For example, the result of this example of the mobile phone in the subsequent charging and booting did not respond, had to send customer service overhaul. This is actually due to the battery due to excessive discharge caused by low voltage, so that it does not have normal charging and boot conditions caused of.

3. The correct approach to lithium battery mobile phones

To sum up, the most important tips for charging and discharging lithium batteries in use are:

1. Charge according to standard time and procedures, even if it is the first three times;

2. When there is a low battery power prompt, you should start charging as soon as possible;

3, lithium battery activation does not require a special method, the lithium battery will naturally activate in the normal use of the phone. If you insist on using the "first three 12 hours long charge activation" method, there will be no effect.