Nice products motor amperage. All amperage listed below is with no load on motor.
816- 1-3 Amps
912L (Titan)- 2-3 Amps
3501 motors run 1-5 amps (stall current is +/- 5A - this is why we only run this motor with the 1050 board and not the 936 or 636).
7251- 7-9 Amps