Our Greyhawk came with a sliding battery tray. It only holds 1 battery. The largest battery I could find that fit was a Group 29. I don't know if others have had this problem, but the bundle of cables at the back of the tray often makes it impossible to slide the tray all the way back in without crawling under the camper and guiding the cables away from the back of the compartment.
There is 1.5" wire loom protecting the wires and then the wire loom is wrapped with electrical tape which makes the bundle stiff. I think if the compartment was a couple inches taller, then I could fit my arm in there and I wouldn't have to crawl under the camper.
-Michael
