'charging' is the process of replenishing power to devices such as batteries. So, why is the charging of mobile phone very slow? Reasons: there are many reasons, such as unstable voltage, internal protection of battery; lithium battery charging protection, preventing frequent charging; disordered discharge process and charging process; different charger plug; charging cable is not plugged properly; charging interface or connector is polluted, etc.
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'charging' is the process of replenishing power to devices such as batteries. So, why is charging a cell phone so slow?
Reasons: there are many reasons, such as unstable voltage, internal protection of battery; lithium battery charging protection, to prevent frequent charging; disordered discharge process and charging process; different charger plug; charging cable not plugged; charging interface or connector contaminated, etc. But the specific reason needs to be judged according to your own usual operating habits. But it is worth saying that this phenomenon is normal, does not mean that your battery has a problem, please rest assured.
Solution: pull out both ends of the charging line and plug it in again. In this process, both ends of the charging cable need to be removed, that is, the mobile phone and the plug need to be re inserted. This can not only prevent slow charging caused by not being plugged in, but also solve the problem of lithium battery charging protection or disorder. You'd better use one kind of plug, and the original one is better. Do not replace the plug of other models, causing damage to the battery.
Note 1: keep the socket and plug clean. Sometimes there will be dust in it, and there will be bad contact when flushing. Although the indicator light is on all the time, there may also be instant power failure and point of arrival, resulting in intermittent charging, but the mobile phone screen can't react, you don't find it. Therefore, it is very important to ensure good contact. If it is dirty, you may as well wipe it with alcohol or brush it with a brush.
Note 2: keep a good charging habit, that is, charging only when the battery is low, and once it is fully charged, unplug it when it is fully charged. This is a very good habit. Many people have a compulsive psychology. When they see that they are not satisfied with the power, they have to charge. Once they have something to do, they pull out the mobile phone and go away, causing repeated charging of the mobile phone. Although the function of the lithium battery is good, it will also cause damage. Charging and discharging is a contrary process, and it can be imagined that the repeated conversion.
Charging skills
If the user wants to extend the effective use time of the battery, in addition to the quality of the charger, the correct charging skills are also essential, because the poor quality charger or the wrong charging method will affect the use time and cycle life of the battery
1. Before the battery leaves the factory, the manufacturer has activated it and pre charged it, so the battery has surplus power. A friend said that the battery is charged according to the adjustment period, but the standby is still seriously insufficient. Assuming that the battery is genuine, in this case, the adjustment period should be extended, and then the battery should be fully charged and discharged for 3-5 times.
2. If the newly purchased mobile phone battery is lithium-ion, the battery has been activated before leaving the factory. The user only needs to use it normally, and can unplug the charger when it is full.
3. When the indicator light of some automatic intelligent fast chargers changes, it only means that they are full of 90%. The charger will change automatically and charge the battery with slow speed. It is best to use the battery after it is fully charged, otherwise it will shorten the use time.
4. Before charging, lithium battery does not need special discharge, improper discharge will damage the battery. When charging, try to use slow charging to reduce fast charging; the charging time should not exceed 24 hours. After three to five complete charge and discharge cycles, all the chemicals in the battery will be activated to achieve the best use effect.
5. Please use the charger of the original factory or brand with good reputation. The lithium battery should use the special charger for lithium battery, and follow the instructions, otherwise the battery will be damaged or even dangerous.
6. Many users often leave the mobile phone on when charging. In fact, it will easily damage the service life of the mobile phone, because during the charging process, the circuit board of the mobile phone will heat up. At this time, if there is an external phone, the instantaneous return current may be generated, causing damage to the internal parts of the mobile phone.
7. The life of the battery depends on the number of repeated charge and discharge, but it can be charged as it is used, because a charging cycle is not a charge or a cycle, but depends on the degree of charging. If you use 50% full charge and then use 50% full charge, these two times are considered as one.
8. All mobile phone batteries have self discharge. When they are not in use, Ni MH batteries will discharge at about 1% of the remaining capacity every day, while lithium batteries will discharge at 0.2% ~ 0.3% every day. When charging the battery, try to use the special socket, do not share the socket with TV and other home appliances.
9. Although the mobile phone is within the coverage area of the network, when the mobile phone is turned off and charged, the mobile phone can no longer accept and make calls. At this time, you can use the transfer function of the mobile phone to transfer the mobile phone to the nearby fixed telephone to prevent the loss of incoming calls. This method is also applicable when the mobile phone is not in the network coverage area or the signal is weak and cannot be connected temporarily.
10. Don't expose the battery to high temperature or severe cold, such as in dog days. Don't put the mobile phone in the car, exposed to the hot sun, or take it to the air-conditioned room, and put it in the place with direct air-conditioning. When charging, it is normal for the battery to be a little hot, but it should not be allowed to suffer from high temperature. To avoid this, it's best to charge at room temperature and don't cover the phone with anything.
11. The Ni Cd Ni Cd battery must be fully charged before charging and fully charged after recharging.
12. If the mobile phone battery is left unused for a long time, you'd better go to the mobile phone maintenance department to apply for a live treatment for the battery. You can also use a DC voltage regulator to adjust the voltage to 5-6v and the current to 500-600ma, and connect the battery reversely. Note: release it at one touch, repeat it for three times at most, and then charge it with the original charger during the 'adjustment period'.
13. The longer the charging time is, the better. The battery without protection circuit should stop charging when it is fully charged, otherwise the performance of the battery will be affected due to heating or overheating.
14. Special charger must be selected for lithium-ion battery, otherwise it may not reach saturation state and affect its performance. After charging, you should avoid placing it on the charger for more than 12 hours, and separate the battery from the mobile phone when it is not used for a long time.
15. When the lithium battery is stored, the best power is 40% ~ 60%, and the best temperature is about 10 ℃, so the capacity decay is the slowest.