So this got me thinking...
Since ALL the new Monsters are now based on the same frame as the S4, they may ALL be subject to this same problem...
So I just checked the part numbers...
The good news: the 620 series has a different part number for the battery.
The bad news: the other Monsters (800 and 1000) carry the same battery as S4.
This is cause for concern.
http://www.ducati.com/bikes/catalogs.jhtml
edit: 9/04/03 - Bad news. The 620's have battery problems too...keep reading.