Just six months on the cell phone battery: Do not charge

Just six months on the cell phone battery: Do not charge

Just bought a new phone for six months, the phone battery is not used. Later, consulting mobile phone engineers, found that it is usually their own phone to charge the "wrong position."

After a 90, I am a cell phone control. Daily life, whether it is watching the news, listening to music, or shopping, eating, etc., are inseparable from the phone. It can be said that smart phones are really "one of the greatest inventions of the 21st century."

After get off work every day, Xiao Bian will charge the phone, not only while charging while playing, but also charge the phone overnight. Until the next morning, go out to work, will unplug the charging line.

Therefore, think of want to go, only to understand that all night charging damage cell phone battery, so now the cell phone battery is not used

In general, smart phones use lithium batteries. Charger, the charger current flows from the USB port, usually "soldiers divided into two"：

 1. Charge the battery current, for example, when the constant current 1A charge the battery;  2. To the phone inside the module (camera, LCD, RF, etc.) powered current.

First of all, will enter the trickle charge, then the  phone battery voltage is low to not boot, will trickle charge, charge current is small, the assembly damaged the battery.

Second, the charge will trickle charge into the constant current charge. At this point the current is constant, the charging current will reach 2A.

Finally, the final stage, into the constant voltage charge. 4.2V phone battery voltage is generally full, when the battery voltage reaches 4.15V close to full charge, the phone into constant voltage charge. The voltage is constant, the current gradually becomes smaller, the final current is zero, the voltage reaches 4.2V (or 4.21V depending on the model phone), the charge ends.

At the same time, I see online users answer, summed up several ways to affect the  phone battery life.

Over-discharge: cell phone in low power, the battery voltage is too low will automatically shut down. But if you restart, there is still power available. Automatic shutdown is a manufacturer of mobile phone battery protection mechanism, battery discharge will cause serious battery life damage, so the battery is too low, please charge.

Over-temperature: the phone battery temperature is too high will also affect the battery life. Frequent discharge of the battery will heat, in the actual use of the phone battery over-temperature, usually due to this cause. Therefore, you need to pay attention to the heat dissipation when playing a large game or running other power-consuming programs, and control the program running time.

Under-temperature: Lithium Battery When the battery temperature is below 0 degrees Celsius, charging is not allowed.

     Overcurrent: Using a high power charger to charge the battery can cause damage to the phone battery. However, manufacturers are now alarming when the charging current is too high. The worst case of overcurrent is short circuit. Short circuit may cause the battery to explode and burn, please do not try.