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Battery maintenance and correct usage tips
Laptop batteries can be said to be the most important parts of laptops. important source of motivation. Without batteries to provide energy, the special requirements of mobile office cannot be fulfilled. Then the notebook in our hands can only be a mobile PC at best. The maintenance and use skills of laptop batteries have become the most troublesome thing for most consumers. Nowadays, there are always different opinions on the use and maintenance of laptop batteries. The author will now give a brief introduction to the use and maintenance of batteries based on my own experience and consultation with an engineer from the customer service center of a Taiwanese notebook brand. We will also have an in-depth discussion on the maintenance of laptop batteries and some corrections on some misunderstandings that friends have in daily use. I hope it will be helpful to all my friends. However, my level is limited. If there are any omissions in the article, I hope you will understand!
A. After purchasing the laptop, charge the battery for more than three consecutive 12-hour periods to prevent the "memory effect"
First of all, let me ask an extremely idiotic question: My friends all Do you have a mobile phone? When using mobile phones, many friends will consciously or unconsciously do one thing according to the reminders of the merchants or others. After buying the mobile phone, they charge the battery for 12 hours for the first three times, and then wait for the battery to run out before charging again. charge. The reason is that friends are worried that their mobile phone batteries have a "memory effect". The memory effect means that the battery automatically maintains this specific tendency after being subjected to a specific working cycle for a long time. So some people say that if you charge the battery with only 50 If you start using it when you start using it, then the memory effect of the battery will be that the next time it is charged, it can only be charged to 50% and then it will "no longer charge". In fact, this "memory effect" refers to nickel-cadmium and nickel-metal hydride batteries. For laptop lithium-ion batteries, the memory effect is almost negligible. As the manufacturing process of laptop batteries gradually improves, the constant current and other charging characteristics of lithium-ion batteries control the deep charging time to 4 hours. There is no need to apply the charging rules of mobile phone batteries to laptop batteries. The laptop battery is out of power. Just charge it, and deep discharge the laptop battery every two weeks or a month. This term sounds a bit scary, but it actually means using the battery to power it, and then just use it to automatically shut down the computer when it runs out of power. However, the number of deep discharges should not be too frequent.
B. When using the AC adapter, the battery must be removed first to avoid "exploding" the battery.
The lithium-ion batteries currently used in notebooks on the market can be used 300 to 600 times. (Some data indicate that it may be more). We can calculate it ourselves. The battery life of Centrino models currently sold on the market is generally 5-6 hours according to official data. The battery life of Mercedes-Benz 4 models is generally 5-6 hours. is 3 hours, then based on the standard that the lithium-ion battery can be charged and discharged 600 times, you can calculate how long your laptop battery can be used. Some friends are worried about taking out the battery when using the AC adapter. If there is still a lot of power left in the battery, plugging in the AC adapter will start charging, causing the so-called "charge times" of the battery to be wasted. ". In fact, this worry is unnecessary, because the power in the laptop battery is definitely not 100%, so charging will definitely be completed when using the AC adapter. However, many laptops from major manufacturers are now designed with battery protection measures. For example, IBM's laptops will only be charged when the battery is less than 95%, but this is not absolute. Some laptop manufacturers have no design capabilities and rely entirely on OEMs. Maybe it's a little weaker in this area as well. If you really feel sorry for your battery, you might as well take it off! The chance of a laptop battery exploding is very small.
But it is not absolutely impossible. There are lithium cells in lithium-ion batteries, and there is a control circuit board between them to complete and manage charging and discharging. If some functions of this control circuit lose their original sensitivity or directly fail, they will not be effective. By controlling the current, the temperature of the internal cell increases, causing an explosion. Or an explosion may occur if the cells inside the battery are short-circuited. But the good thing is that the notebook products on the market now all use high-quality foreign cells or directly buy batteries from other companies, and the quality is relatively better. Some domestic lithium-ion battery manufacturers also import foreign cells and then manufacture them. So as the old saying goes, when choosing a laptop, try to prepare as much budget as possible to consider products from major manufacturers. That’s right.
C. The battery life does not meet the official standard. There must be something wrong with the battery.
All friends who buy laptops will worry about this problem. Indeed, with the birth of Centrino technology, it is possible for laptop batteries to have longer standby time. Some manufacturers even list a 10-hour "battery usage standard" for their laptops. In fact, this is just an advertisement to attract consumers' attention. At present, the batteries of most laptop computers cannot meet the so-called "official standards". Perhaps friends remember ASUS's patented power-saving technology Power 4 Gear technology (there is also an upgraded version Power 4 Gear), which claims to use the battery of the M6 ??series notebooks. The time was extended to 5.5 hours, but the ASUS salesperson told me that the battery life of this notebook is only about 3 hours. Of course, having said that, the manufacturing process problems related to battery life are not something that we consumers can solve. So friends, don’t be surprised when there is no “official battery usage standard” for battery life, because it is normal for the battery life to not reach that long (if your laptop’s battery life meets the official standard, please don’t blame it. I'm talking about most books).
If the battery standby time of friends has not reached the "official battery usage standard", then we can still extend it through some ways:
1. 25℃~40℃ Under the standard external use environment, the use of lithium-ion batteries can reach optimal conditions. If the temperature is too high, not only will the laptop itself slow down or even crash, but the battery will also affect its efficiency in such an environment. So try to use your laptop in an indoor environment.
2. Disable infrequently used devices. When using battery power, it is best to disable all temporarily unnecessary interfaces, such as wireless network cards, printer interfaces, infrared interfaces, and 1394