20wpd fast charge has little impact on the computer, PD charging power is generally lower than the normal use of adapter charging power, so PD charging will affect the performance of the laptop.
PC will not break with PD fast charge. pd fast charge protocol needs to be charged in the device chip identification will start, if the computer does not support pd fast charge, the use of pd fast charge electrical is not able to charge the computer, naturally will not damage the computer battery, if the computer supports pd fast charge protocol, then the internal circuit has the corresponding protection circuit, qualified charger will not damage the computer battery.
You can't. Because the output voltage of the charging treasure is five volts DC, and the charging voltage of the notebook needs about 15V DC, the voltage level difference between the two is very large, it is impossible to charge the high-voltage notebook by the low-voltage charging treasure. It is best to charge the laptop with a special charger, so that the charging process is safe, and the battery life is also guaranteed.
Apple's original 20W PD fast charger has two sets of voltage gears, 5V3A and 9V2.22A, with a maximum output power of 20W. It can be quickly charged to a laptop normally.