The 12v lithium battery of mobile phone is more solid, the common way of charging will not hurt the battery, because the mobile phone has a power management chip in the protection of the battery.

Both early feature phones and today's smart phones have power management chips, known as power management ics. Even shanzhai phones have power management chips.

The power management chip plays a very important role in mobile phone operation, which is responsible for the conversion, distribution, detection and other power management responsibilities. In other words, monitoring the battery level and charging are only the most basic functions of the power management chip of the mobile phone.

Specifically, in everyday use, the power management chip is responsible for distributing power to various parts of the phone. Once the battery is detected to be too low, the system will remind the user to charge it. Many phones will prompt users to charge them when their battery level drops below 20 percent, as a result of the power management chip warning.

Similarly, during the charging process, if it detects that the battery is full, the power management chip will disconnect the power. At this point, the phone charger is still connected to the phone, but instead of recharging the battery, it supplies power to the phone. So, charge your phone overnight and you won't damage it. Likewise, the battery life will not be shortened.

Most mobile phones today use lithium-ion batteries, whose life depends on the number of times they are fully charged and discharged. Typically, a phone's battery is only 80% of its designed capacity after 300 to 500 full charges and discharges. Once the battery drops below 80% of its designed capacity, consider replacing it.

How to charge scientifically?

Ensure reasonable electricity value

When the battery is dead and the phone is turned off, say no to charging it in a hurry. Charging a phone after the battery is completely drained is called "deep discharge", which takes a toll on the battery.

The battery power ratio is kept between 65 % and 75 %, which is appropriate. Battery life is longest if the phone's battery ratio is kept between this range for a long time.

Use compliant charging devices

When charging, it is best to use the original charger of the mobile phone, if the original can not be used, and the mobile phone needs to be charged, then choose the charger must pay attention to whether the output specifications of the charger meet the battery requirements, but also pay attention to the charging line can support the maximum current can be adapted to the mobile phone battery.

Pay attention to the charging status of your phone

When charging, try to forget games and videos, let the phone "beautiful alone", while charging while playing not only reduce the charging efficiency, but also may cause the phone fever and other conditions. Therefore, when charging, you can often feel the body temperature with your hand. Once you find that the temperature of the mobile phone rises too fast or too high, you can timely unplug the power and stop charging.