The correct charging method for lithium battery of mobile phone

Nowadays mobile phones have become our must-have communication tools, but in order to make your mobile phone use longer and safer, you must know the correct charging method of the mobile phone, and also know what is wrong with the battery charging of the mobile phone.

　　Mobile phones are a must-have item for modern people. Nowadays, almost all mobile phones are hand-held, and charging mobile phones has become a must-do for us every day. But do you know what is wrong with the battery charging of your mobile phone? What is the correct charging method for mobile phones? Let's take a good look at it.

　　Mobile phone battery charging error

　　Cell phone charging error 1: The new battery needs several full charge and discharge to activate

　　Lu Jianguo, director of the comprehensive inspection department of the National Household Appliance Quality Supervision and Inspection Center of China Household Electrical Appliances Research Institute, told reporters that different battery products require different methods to charge, and must be used according to the product description. Early nickel-cadmium and nickel-hydrogen batteries required similar "activation." These batteries produce a "memory effect" that can be charged in an incompletely discharged state, which can easily overcharge the battery. Over time, the user feels that the power is running out quickly. However, the batteries used in current mobile phones and laptops are mostly lithium-ion batteries . Its initialization process is done at the time of manufacture, so no activation is required when starting to use.

　　Mobile phone charging error 2: reduce the number of charging, can extend battery life

　　Generally, the life of a lithium-ion battery can reach several hundred charge-discharge cycles. The charge-discharge cycle here refers to the process of charging the battery after it is used up, instead of plugging in the charger and then unplugging it once. Lithium batteries have no memory effect and can be recharged at any time. In order to reduce the number of times of charging, the battery is depleted and then fully charged. This does not extend the battery life, but has a negative impact on the battery life. In addition, if the phone use automatic shutdown, lithium battery will discharge because of excessive lead to internal voltage is too low, the situation may not boot and the charge appears. Therefore, lithium battery charging pays attention to "less meals", frequent shallow charge and discharge is more helpful to extend its life.

　　Cell phone charging error zone 3: Overcharging will cause battery explosion

　　Lithium batteries generally have safety protection circuits and a variety of safety devices to ensure that the battery circuit is automatically cut off during overcharge, discharge and short circuit; excessive internal pressure of the battery will trigger the decompression of the exhaust device; if the battery temperature is too high, it will trigger heat. The protective device is melted to stop the electrochemical reaction of the battery. Therefore, unless there is a quality problem, the battery will not explode due to long-term charging. However, not fully unplugging the power supply after the battery is fully charged will keep the battery fully charged. Although it will not explode, it will speed up the loss of battery capacity.

　　In addition, there are rumors that the phone will cause an explosion when the phone is charging. Experts say that this argument is untenable. If there is such a danger, the product will set up a program that does not access the phone when charging. However, from a health point of view, the wire will limit the user's range of motion. When charging, the phone may be fixed in one place for a long time, causing excessive muscle tension. Therefore, it is recommended to unplug the power and then talk. Do not cover anything on the battery when charging, and do not put it on the bed to avoid fire.

　　Mobile phone correct charging method common sense

　　1. Before the battery leaves the factory, the manufacturer has activated the process and pre-charged it.

　　Therefore, the battery has surplus power. Some friends say that the battery is charged according to the adjustment period. The standby is still seriously insufficient. If the battery is a genuine battery, in this case, the adjustment period should be extended and then 3 to 5 times full charge and discharge.

　　2. If the newly purchased mobile phone battery is lithium ion

　　Then the first 3 to 5 times of charging is generally called the adjustment period, and should be charged for 12 hours to ensure the full activation of lithium ion activity. Lithium-ion batteries have no memory effect, but they are highly sturdy and should be fully activated to ensure optimal performance in future use.

　　3. Some automated intelligent quick chargers only indicate that they are full of 90% when the indicator light changes.

　　After charging 90%, the charger will automatically change the battery charging with a slow charging mode. Therefore, it is best to use the battery after it is fully charged, otherwise it will shorten the life of the phone.

　　4. Before charging, the lithium battery does not need to be specially discharged. If it is not properly discharged, it will damage the battery.

　　When charging, try to charge slowly, reduce the fast charging mode; do not exceed 24 hours. After three to five full charge and discharge cycles, the internal chemicals will be "activated" to achieve the best results.

　　5. Please use the charger of the original or reputable brand.

　　For lithium batteries, use a special charger for lithium batteries and follow the instructions. Otherwise, the battery may be damaged or even dangerous.

　　6. There are many users who often turn their mobile phones on while charging. In fact, this can easily hurt the life of the phone.

　　Because the circuit board of the mobile phone will heat up during the charging process, if there is an external call, an instantaneous return current may occur, which may cause damage to the internal parts of the mobile phone.

　　7. The life of the battery is determined by the number of repeated charge and discharge, so try to avoid charging when the battery has excess power.

　　Such a charging situation will shorten the life of the battery. When the mobile phone is turned off, it can't be more than 7 days. First, the battery of the mobile phone should be completely discharged, and then it should be used after the power is sufficient.

　　8. The mobile phone battery has self-discharge

　　When not in use, the nickel-hydrogen battery will discharge about 1% of the remaining capacity every day. The lithium battery will discharge 0.2% to 0.3% per day. When charging the battery, try to use a dedicated socket. Do not share the charger with a home appliance such as a TV.

　　9. Although the mobile phone is within the network coverage area, when the mobile phone is turned off and charged, the mobile phone has been unable to accept and make a call.

　　At this time, you can use the mobile phone's untransfer function to transfer the mobile phone to the fixed telephone nearby 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. Do not expose the battery to high temperatures or cold

　　When you are in the sky, you should not put your mobile phone in the car and expose it to the sun; or take it in an air-conditioned room and put it in a place where it is cold. When charging, it is normal for the battery to have a little heat, but it cannot be banned from high temperatures. To avoid this, it's best to charge at room temperature and don't cover anything on your phone.

　　11. Nickel-cadmium (Ni-Cd) batteries must be fully charged before charging.

　　The battery must be fully charged after recharging.

　　12. If the battery of the mobile phone is left unused for a long time, it is best to apply to the mobile phone repair department for a live treatment.

　　You can also use a DC constant voltage regulator to adjust the voltage to 5~6V and the current to 500~600mA to connect the battery in reverse. Note that it can be released at the touch of a button, and can be repeated up to three times. After this treatment, the original charger is used for "adjustment period" charging.

　　13. When charging, it is not as long as possible.

　　When the battery without protection circuit is fully charged, stops charging, otherwise the battery may affect performance due to heat or overheating.

　　14. Lithium-ion batteries must use a dedicated charger

　　Otherwise, it may not reach saturation and affect its performance. After charging, avoid placing it on the charger for more than 12 hours. When not in use for a long time, separate the battery from the mobile phone.

　　The above is the correct introduction to the mobile phone charging method. If your charging method is not correct, you must pay attention to correct it.

　　Conclusion: Friends, through the analysis of the above article, can you understand the misunderstanding of mobile phone charging, what is the safest way to use when using mobile phones? How can you make your phone last longer? I hope this article is helpful to everyone.