No problem. If it is a WFCO converter, not much of a loss as they are not well regarded. Hopefully, you bought a different brand for replacement.
I'd suggest you test continuity from negative battery post to frame. It is easy to second/third guess yourself about the proper battery hook up.
Edit: Saw your picture of the PD 9160. That is a good brand. Is it by any chance still under warranty? Even if not, I'd give PD a call. They may be nice and send you the new replacement charger. Stranger things have happened.
Good luck with the converter, I'm sure a replacement will have you right as rain.