Best way to power a small Nema 17 0.7Amp 12v and make ir portable

Thanks for answering Paul!
In order to drive the motor I have to options, either the DRV8825 or the A4988 boards. I have them both.

The motor I described has a torque of 14 N.cm and it will have a 10 teeth gear that will rotate a 42 teeth gear, something like this:
Screen Shot 2021-11-23 at 2.28.25 p.m.