Using 5V 2A supply for project, is this enough?

hi,

my project consists of controlling 4x 28byj-48 motors (via uln2003 drivers).  in addition have real time clock module , miscellaneous parts switches , maybe 1 or 2 leds.  (i'm making arduino powered clock).

the motors driving gears, of gears have little no resistance on bearings , loads light.  i'll turning motors 1 @ time.  *believe* current demand low result.

ideally avoid batteries power source they're pain have keep remembering charge or they're flat when need them (+ they're kind of expensive if want long lasting lipo ones). 

so hoping use 5v 2a power supply (i.e. phone/tablet charger) , hoping if advise if adequate job.

the rtc module (ds3232) believe draws 300ma max, arduino belive has max draw of 200ma , leds (4x) should draw 80ma wondering if remaining 1.4a enough motors , arduino?

fritzing image attached clarify layout.

any advice appreciated!
thanks

quote

so *believe* current demand low result.

the current requirement stepper has less load needs move need hold still between moves. 4 steppers need hold still. 2a may not enough. in terms of amperage, can ignore arduino , leds.

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