With three of those 1704HS168A motors, two 1.7A windings each, a rough estimate suggests that you should expect a 3Ah battery pack to last for less than one hour of continuous operation, depending on your actual setting for the winding current.
With three of those 1704HS168A motors, two 1.7A windings each, a rough estimate suggests that you should expect a 3Ah battery pack to last for less than one hour of continuous operation, depending on your actual setting for the winding current.