The battery in my Crossfire is a 74 amp hour VARTA by Daimler/Chrysler. I assume that it is the original battery.
It has the red cover over the positive battery post. The cover has two posts that snap into two holes in the top of the battery. Without the two holes in the battery it wouldn't work.
The Mercedes Part Number stamped on the cover is: A 001 546 08 35
The Mopar Part Number is: 05098850AA.
Check page 89 of the 443 pages in the link to a pdf.
http://app4.websitetonight.com/proje...merica.com.pdf
The battery also has holes for a negative post cover but it's not really necessary.
Hope that helps.