Did you take a picture of your battery cables before unhooking them and are you sure you replaced them exactly as they were before the battery change, included the small wires connected to the batteries?
Did you by chance place a battery in backwards and/or hook up/touch the cables backwards?
Years ago in my haste, I did the latter and blew fuses all over the coach. The fuses I recall blowing were a generator fuse, a transmission fuse, a couple of Aladdin/Bose/Sirius Radio fuses, and a high amp blade fuse located over the coach battery bank.
The transmission fuse I blew was located just under the shift panel to the left side of the pilot's seat. Under the shift panel in a 6"x8" clam-shell-looking black box, there are a couple of fuses. With the starter key ON, the shift panel must be functional, i.e., showing a gear selection, and report an "N" neutral status to the transmission before the engine will be allowed to start. After changing the one blown fuse in the black box, the shift panel was operational, reported the "N" neutral status, and the engine fired right up.