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What is the normal voltage of the mobile phone battery

1. Nowadays, lithium-ion batteries are used for mobile phones, and the voltage generally does not exceed 4.2V, which is mainly determined by the characteristics of lithium-ion itself.

2. The lithium-ion polymer has a voltage of 4.35V, which is also known as a high-voltage battery. Lithium ion batteries are traditional batteries with soft battery cells and reinforced with steel plates on the outside. Once there is a short circuit between the positive and negative electrodes inside, the chemical substance undergoes drastic changes and becomes a small bomb.

4. Lithium ion polymers have a relatively high energy density ratio and are filled with liquid electrolytes, which can achieve the hardness required for mobile phones without the need for steel plate reinforcement (although many companies still require it). Once there is a short circuit between the positive and negative electrodes inside, only the electrolyte will flow out and rarely explode, so polymers are safer than lithium ions.

How much is left on the phone battery for optimal charging?

1. Generally speaking, when our phone's battery level drops below 15%, it will automatically sound an alarm, and it is recommended to immediately connect it to the power source for direct charging.

2. To ensure that the phone does not automatically shut down when the battery is low, please connect the charger when there is about 15% remaining, start charging, and ensure that the battery is fully charged every time, maintaining a good lithium battery cycle, which helps to extend the battery life.

What is the normal voltage of the phone battery? How much is left on the phone battery for optimal charging?

3. If it is a newly purchased phone, you only need to use the battery level to below 10% to start charging. There is no need for overcharging, just recharge. Overcharging is harmful to lithium batteries and not beneficial.

4. Usually, we need to pay attention that whenever the battery level drops to a critical value, unnecessary programs in the background can be closed, and screen brightness can be lowered to reduce battery consumption.

What is the normal voltage of the phone battery? How much is left on the phone battery for optimal charging?

5. It is worth noting that when charging a mobile phone, the battery should not be completely depleted before charging, which can lead to the tragedy of not being able to charge and the phone battery being completely damaged.

Precautions for charging mobile phone batteries

1、 Use original charging plugs and cables

It is very important to use the original charging plug when using it. Many mobile phones nowadays support fast charging, and some phones have different fast charging methods. The voltage and current of different phone charging heads are also different. If used interchangeably, it can cause significant damage to the battery. A high-power plug for low-power charging can accelerate the speed significantly, but it can cause significant damage to the phone battery. Therefore, it is necessary to use the original charging plug when charging the phone. The same principle applies to charging cables, and the specifications of different charging cables are also different. Therefore, when charging, it is necessary to use the original charging cable.

What is the normal voltage of the phone battery? How much charging is best left on the phone?

2、 Don't charge your phone while playing

Many users enjoy playing with their phones while charging, making phone calls, playing games, watching videos, and other activities that consume a large amount of current. The current supplied by the charger is smaller than the current consumed by the phone, and the current output from the battery is used to meet the needs of the phone while charging. That is to say, at this moment, the battery is not charging, but discharging, and may even quickly deplete its capacity. If conditions permit, it is best to turn off the phone for charging, as this is the best maintenance for the phone battery.

What is the normal voltage of the phone battery? How much is left on the phone battery for optimal charging?

3、 Confirm the temperature of the phone when charging

Placing the phone in a high and low temperature environment will trigger different reactions, which will then affect the battery life. Due to the instability of the electrodes in the electrolyte, during each charge and discharge, a chemical reaction occurs between the two electrodes of the battery, which consumes the active material and reduces the chemical energy converted into electrical energy, resulting in a decrease in battery capacity. If the ambient temperature is too high, it will accelerate the chemical reaction and self discharge of the battery, reducing the battery capacity; Low temperatures below zero degrees can also have negative impacts on battery structure, and even permanent damage. So when charging, it is important to determine the temperature of the phone and avoid charging in excessively high or low environments.

4、 Do not overcharge

Some people like to charge their phones while sleeping at night and then unplug them when they wake up in the morning. This charging method actually causes significant damage to the battery. If an original charger is used, the phone charger will always be in standby mode, and the impact is not significant. If it is not the original charger or the charger is not in standby mode, the battery will always be in charging mode, which will damage the battery.

5、 Do not use David's protective cover when charging

Nowadays, mobile phones are prone to breakage, and to prevent damage caused by falling, many users love the David case. As mentioned above, temperature can cause damage to the battery. Wearing a maintenance cover during charging makes it difficult for the battery's heat to dissipate, resulting in an increase in temperature. Therefore, do not wear a maintenance cover during charging.

What is the normal voltage of the phone battery? How much is left on the phone battery for optimal charging?

6、 Other issues

In addition to the issues mentioned above, there are also some other issues, such as the need to charge for more than 12 hours for the first time. This outdated idea has been basically eliminated. Nowadays, most mobile phones are polymer batteries and do not require the first 12 hours of charging, just like the normal charging method. Even today's mobile phone batteries do not require repeated charging and activation. Many users also consider the charging frequency of their phones. Some people believe that too many charging times can affect the battery life, as long as it is charged and discharged normally, it will not cause too much damage to the battery. On the contrary, it can be seen as normal maintenance of the battery, but it should not be charged too many times a day.

What is the normal voltage of the phone battery? How much charging is best left on the phone?

The reasons for the heating of mobile phone batteries

1. The power consumption of a mobile phone during standby is very low, which means that its battery has a high equivalent load resistance, so the discharge current is very small, so the battery will not generate heat, and the internal conflict of battery energy is very small.

2. The power consumption of a mobile phone while waiting for a call or using an MP3 player is high, which means that the equivalent load resistance of its battery is small, and it is discharged with high current during operation. After discharging a portion of the battery, the internal resistance increases. However, the current required for mobile phone operation cannot be reduced. As a result, a considerable amount of energy is spent on the internal resistance of the battery, causing it to heat up and discharge faster, and the battery's service life is quickly shortened.

Damage caused by heating of mobile phone batteries

1. Prolonged heating of mobile phone batteries can cause internal components to heat up, which can then cause the phone to restart or hang up during a call

2. Long term heating of mobile phone batteries can increase the heat of the battery itself. If the battery is sealed (such as NOKIA, it is not sealed and the battery is directly installed), it will cause the internal air to expand violently, causing the battery to protrude outward, which can seriously cause the battery to explode.

3. Long term heating of mobile phone battery will accelerate the aging process of mobile phone itself and shorten its life.

Prevention and Solution of Heat Generation in Mobile Phone Batteries

1、 Preventive measures:

1. When the phone is at normal room temperature, it is normal for the heat to not exceed 60 ℃ and it will not damage the battery.

2. It is not advisable to use a high current charger for too long, as charging for too long can damage the battery and generate heat

3. It is best to use original or high-quality products for chargers

4. If you are not in a hurry to use it, it is recommended to use a slow charging method to charge the battery without causing it to heat up

5. If the phone feels a bit hot while listening to MP3 or charging the battery, if it exceeds 60 ℃, immediately return to standby mode or replace the battery. If it is charging, immediately unplug the charger.

2、 Solution:

1. If the phone battery has already been fully charged, there is also a solution. Just use your fingers to find the empty space of the battery (the back of the phone battery is close to the charging electrode of the phone, which is a bit soft when pressed down), and poke a small hole with a pointed finger to let the air inside run out.

2. Throw away and buy another battery.

How to distinguish whether a mobile phone battery is healthy

1、 Check the appearance of the battery

What is the normal voltage of the phone battery? How much charging is best left on the phone?

1. Firstly, the simplest way is to investigate the appearance of the battery. If the phone battery is detachable, it would be very convenient. If the battery contacts show white or green corrosion marks, this is the initial sign of battery failure. If some parts of the battery begin to show protrusions, then be very careful not to continue using it.

2. Of course, battery aging and protrusions are not formed overnight. If you want to eliminate the hidden danger as soon as possible, you can use rotation testing to identify small protrusions that are not easily noticeable. The method is very simple. Find a horizontal surface like a desktop to rotate the battery. If the battery rotates quickly, it indicates that its surface is no longer flat.

2、 Using software to check battery health level

What is the normal battery voltage for mobile phones? How much is left on the phone battery for optimal charging?

1. A more convenient way to check for phones that use built-in planning batteries is through software. If using an Android phone, you can enter "* # * # 4636 # * # *" in the dialing interface to enter the engineering interface, find the battery information entry, and see the specific battery information, including battery health, which can be referred to below.

What is the normal voltage of the phone battery? How much charging is best left on the phone?

2. If it is an iPhone, you can use some application such as iBackupBot to check the phone's charging times, actual battery capacity, etc. If the total power loss due to overcharging exceeds 20% of the original power, you should consider replacing it (lithium batteries will lose 20% of their power after 500 charging and discharging).

What is the normal voltage of the phone? How much is left on the phone battery for optimal charging?

In addition to the above methods, try to avoid using non original batteries, data cables, and chargers as much as possible, which is also effective in preventing phone fires and explosions. In summary, as an electronic device at any time, we still need to pay attention to investigating some details in the use of mobile phones to prevent them from becoming "grenades".

Mobile phone battery maintenance instructions

1. If a newly purchased mobile phone is a lithium battery, it usually takes more than 14 hours to charge the first 3-4 times to ensure sufficient activation of lithium ion activity.

2. Before leaving the factory, the manufacturer will pre charge the battery, and the adjustment period should be appropriately extended, followed by 3-5 cycles of intact charging and discharging.

3. Usually charged with a fast charger. When the indicator light changes, it usually only fills up to 90%. At this time, it should still be used after waiting for it to slowly fill up.

4. Before charging, lithium batteries do not need to be discharged specifically. Improper discharge can damage the battery, and the charging time should not exceed 24 hours.

5. Use a dedicated lithium battery charger, otherwise it may damage the battery and even pose a danger.

6. After charging, the battery should be prevented from being left on the charger for more than 12 hours. When the phone is not used for a long time, the battery should be separated from the phone.

7. Charging a mobile phone when turned on can cause the circuit board to heat up, while incoming calls can generate instantaneous backflow electricity, damaging internal components.

8. The lifespan of a battery depends on the number of repeated charges and discharges, and it should be prevented from charging when there is excess battery power.

9. Nickel hydrogen batteries discharge around 1% of their remaining capacity every day, while lithium batteries discharge around 0.2% -0.3% of their capacity every day. Do not share sockets with household appliances such as televisions when charging.

10. High temperature exposure to sunlight or severe cold wind can affect the lifespan of the battery. Do not cover anything on your phone.

What is the normal voltage of the mobile phone battery shared with us by the editor of Xianji Network? How much is left on the phone battery for optimal charging? Precautions for charging mobile phone batteries, causes of battery heating, damage caused by battery heating, precautions and solutions for battery heating, and how to determine whether the mobile phone battery is healthy. Hope to deepen our understanding of mobile phone batteries! In fact, because lithium batteries have the characteristics of high energy density, light weight, small size, and good safety, the vast majority of smartphones in the current market are using lithium batteries. However, the disadvantage of lithium batteries is that their service life is mostly only two to three years, and improper disposal of waste batteries can also cause pollution to the environment. So how can we extend the lifespan of lithium batteries in use? Some people deliberately use up the battery before charging in order to reduce the number of charges. However, this practice does not extend the battery's lifespan and can be harmful to the battery. According to a report from Beifang Net, lithium battery charging emphasizes "eating less and eating more meals". Frequent shallow charging and discharging is more helpful in extending its lifespan. In other words, it can charge the phone at any time without waiting for a low battery "alarm" or the phone to run out of battery before charging. In addition, when charging your phone, you should keep it in black standby mode and try not to watch videos or play games. When using your phone for calls, it is best to unplug the charging plug, otherwise it will also affect the battery life. According to a report from China Economic Network, lithium batteries have no memory effect and the inertness of lithium ions is strong. Therefore, they should be fully activated in order to achieve optimal functionality. Newly purchased lithium batteries should be charged for at least 14 hours for the first 3-5 times to ensure sufficient activation of lithium ion activity; At the same time, lithium battery charging should use a dedicated charger and follow the instructions to charge, otherwise the battery may not reach saturation, which will affect its function and even cause danger in severe cases.

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