Why does the phone charge less and less, and why does the phone charge less and less

Why does the phone charger charge less and less.

Reason 1: The output voltage and power of the computer charging cannot reach the standard charging voltage and power due to insufficient output voltage, which leads to the result of less and less charging, and it will also have a certain impact on the hardware of the mobile phone.

Solution: Use the original charging head, or stop using the phone for a period of time, and wait for the charging to complete before using it.

Reason 2: Battery aging and failure capacity decreases: lithium batteries are generally used now, and lithium batteries themselves have a certain life span of about 500 times, and with the increase of the number of times, the capacity also decreases with the proportion, and ordinary users can use it for about two years.

Solution: Since today's mobile phones are designed with non-removable batteries, you need to contact a repair point to replace the battery in this case.

Reason 3: Use of miscellaneous chargers: Users often overcharge or overdischarge abnormal use, such as adapting to miscellaneous mobile phone chargers.

Solution: Do not use cheap miscellaneous chargers, the cost of this kind of charger is limited, the imperfect protection circuit is easy to cause overcharging and charging bad batteries, try to use the original mobile phone direct charging is the best.

Because the voltage you output, the voltage you input is not proportional, and the output is too high.

Your battery or charger is dead.

Inferior mobile phone data line resistance, large heating, slow charging speed, in the case of the mobile phone is not turned off and continues to use electricity, the charging speed can not catch up with the electricity speed, so the power is off.

Poor contact between the charger and the data cable or the data cable and the mobile phone will cause the contact resistance to be too large and the charging current will be reduced, resulting in the charging speed not being able to catch up with the usable speed.

The aging of the battery causes the battery resistance to increase, and the charging speed is slow, and there is less and less power consumption speed when the charging speed is faster than the charging speed.

If the charging speed cannot catch up with the power consumption due to the power of the charging head, poor data cable, etc., it will also cause the mobile phone battery to be charged less and less.

The working process of the battery receiving electrical energy from the external circuit and converting it into the chemical energy of the battery. After the energy of the battery is consumed by discharge, it can be restored by charging and can be re-discharged, constituting a charge-discharge cycle. Generally, it is charged with DC current (also with asymmetric AC current or pulse current).

In different cases, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, emergency charging or a combination of these methods.

According to the formula of electricity = voltage * current * time, in the case of fixed power, the charging time can only be shortened by increasing the voltage or increasing the current.

High-voltage charging: high-voltage and low-current mode, increasing voltage, it is necessary to design multiple step-down circuits in the charging circuit. When charging, the charger will heat up, and the phone will also heat up, which will affect the safety of the battery. [1]

Low-voltage charging: low-voltage high-current mode, increasing current, introducing MCU monolithic microcomputers in both charger circuits and battery circuits to replace step-down circuits. Under the premise of low voltage and high current, the output of the current with segmented cross-flow is realized through the open voltage loop.

VOOC flash charging uses the solution of low voltage and high current to ensure safety and solve the problem of mobile phone charging and heating.

Maybe there was a problem with the data cable, and it didn't rush into it at all.