The power bank is a daily life necessary for people, because of the
phone battery is always lack of the power. Power bank also becomes our
the extra phone battery. Some people are beginning to confuse that
whether power bank will damage phone battery except for the natural
decay of the phone battery? Does the power bank really damage your phone
battery? Why?
The Quality of PCB
Power bank is made up of the shell, battery cell and PCB, the most
important is PCB. The quality of the PCB directly affects the device
charge effect. Because the voltage drop or boost of power bank is
controlled by PCB.
By the way, the safety protection is on the PCB, such as high
temperature, overcharge, over-current, over-voltage, short circuit
protection etc, these are essential for power bank, but for the bad PCB
can’t provide better protection.As we know, The whole process of phone battery charging includes three
stages: rapid charging, continuous charging, and trickle charging. The
trickle charging is a small current to charge after the battery is full
which can keep the electrons flowing and extend the battery life.
Most power banks have been disconnected from the phone before it enters the trickle charge, never charge fully.
