At some point in every boat it comes down to chasing lures, tools, baitfish or trashfish to the bilge.
In my case the batteries are also located there and I durn sure don't want something to short out cause it rolled back there.

A cover whould have been great except after measuring the mounting locations I would have to order some weird size batteries and I ain't much on custom parts.
So the next best thing and easily installed and removed!