Looks like previous owner adapted a top post battery and boat style wing nuts. Per factory parts book the cables look like side mount terminals which makes sense.
Funny thing is the cables look factory but probably removed all the side post hardware.

Any thoughts? The lid is mashed down and the only thing that prevents a direct short is a red plastic cap on the pos+ terminal.

Thanks,

I hate to keep asking questions but am real new and like stuff to be right. All help and calls thus far are truly appreciated.