Congratulations on your new additions!
Well, one factor is perhaps they haven't begun laying yet at all. Check their vents. Are they moist, or dry and puckered? Next you can check for pigment loss by observing their legs. Are they a solid yellow, or are there pale scales beginning to show?
A starting layer has a moist vent, and paling legs. One other way to be sure is to put your fingers (perhaps you'd like to glove) against her vent; not inside at all, just lightly against it. With the gentlest of external pressure, you should be able to feel two jutting bones on either side. Are they spread apart at least the width of two of your fingers? If so, she's laying.
If they are laying birds, then as soon as they accommodate to their new surroundings, they'll restart production. Adjustment could take anywhere from a few days to a month and beyond.
Another possibility is that they may not even start up again until spring, if you're somewhere in Northern America. A lot of stressed hens take off for entire winters, and that may turn out to be the case here- unless you provide them with artificial lighting to "fool" their body into thinking it should still be producing.
A battery cage isn't the best choice for long-term housing, especially for backyard layers that aren't just numbers in an immense production flock. Uncommercial chickens need an arguable amount of 8-10 sqf per bird to exist comfortably inside a coop and its respective pen 24/7. In addition to overcrowding, there's the matter of drafts and no designated nesting space when using a crate. For the moment, be sure that they're under some sort of cove that gives them protection from the direct elements.
You can read more about proper domestic coops and the many options on one of the threads found here:
https://www.backyardchickens.com/threads/byc-coop-section-helpful-thread-index.206328/ 
