When it comes to File Size limitations, any limiter will be on the incoming side, not on the output side.
When batches come in, the images are separated into individual TIF images where file size will not matter. The only time a file size may come into contention is if the image page were very large, such as 36 inches x 48 inches.
When outputting the image, they're individual pages, unless you have a custom export connector that is putting them back into a multi-page TIF or similar.
Kofax Capture and the default Text and Database export connectors, the limitation will be on the VRS portion of the product that has a 2GB limit.