For the charging bank that supports the fast charge protocol, for the charging head that is lower than the rated power, it can directly supply power to the charging bank. This will not destroy the fast charge agreement, nor will it cause irreversible damage to the battery pack inside the charging bank after overcharging, and accelerate the aging of the battery pack. The 20w charging head can reach full power charging, which is very good.
It's connected, and it charges really fast
It can be connected to the charging bank, but it cannot guarantee that it is still a fast charging effect.
Do not connect the power bank, not supported