The charging plug of the charging bank is divided into three specifications, 5v1a, 5v2a and 5v3a, which are generally 1a, and this specification is the same as the mobile phone charging head, which can be universal; Most of 2a is seen in some large-capacity charging treasure (5000mah or more), charging the mobile phone will cause the mobile phone to heat up due to too much current, screen failure, etc., which may damage the circuit; 3a is relatively rare, generally large capacity and marked fast charging of the power bank will be used, more in 15000~20000mah special products, current up to 3a, if the charge of the mobile phone is easy to damage the circuit board, even if the charge bank will reduce battery life.
ps: There is a mark on the plug output specification 5v- 1a or something, lz can see for himself.
Charging bank charging: Android phone charging connector, and Apple phone charging connector, but also type-c connector
The plug of the charger is ready to charge,