Yes they are a pain in the butt OEM set. Mike Seastrom at ehparts.net should have the updated cables. A lot of owners only do the positive. I did both. Still not handy but much easier.
We used to have a DWS, and the whole inside cover was smoked from battery touches. Long before we owned it.
I also came across a R/O I worked on from New Mexico, that had a positive battery cable from hell. It was way too long (kind of like goldie locks, too short, too long), and took me the first time 45 minutes to get the cover back on....
I forgot to mention initially, make sure you got that red positive battery cable boot on there too. Thats a given.
Crossing my fingers you don't have a "ghost short" running thru your scoot. Trying to keep this simple at this point.
Bruce