Folks there has been some confusion about the charging speed on "CHARGER" port of Gen 1 and Gen 2.
Gen 1 "CHARGER" port output is up to 2.1A without data communication . It is for charging propose only.
Gen 2 "CHARGER" port output is 1.5A with data communication. Its a full USB port with extra current (It`s BC 1.2 compliant port).
thanks to @jjrandorin for bringing this up
G
Thanks for clarifying, and thanks to @Kevy Baby for pointing it out up thread as well.