You need to make sure that the Machine Receives at least one Packet per Tick, if that is not the case then it will never complete the Recipe. And considering how your Setup is basically dumping everything into the Batbox first you might need to make sure the System is actually saturated for all of this to function.
There is NO EVEN DISTRIBUTION in this type of Electric Network, so you need to make sure that everything that is connected is powered fully for things to actually work.
And yes those Battery Boxes actually accept more Power the more Batteries you put into them, so you need to supply more too ofcourse.