Do Cheap Chargers Ruin Your Battery. Using cheapfake chargers can damage the charging IC. Of course there is never a gift card and people never bother fixing the review.
If it were to fail to deliver proper 5 volts it could overload the phone and cause damage. To stable 5 volts DC or whatever your phone needs stabilize and regulate that output and in some cases limit the current with circuitry in addition to a fuse. As a result it could overheat the phone.
A wireless charging pad is going to ruin your phones battery.
In conclusion what will damage your phone battery are substandard power banks. Does using a power bank damage your phone battery. They could potentially cause damage. RavPower gallium nitride 29W and 45W chargers can over time ruin your battery in some cases.
