When I had my JBD I found mine at 100% except in winter is 80% it was the updated chip with new 100 = to old 80. Mine is 2012 X5D so newest soft from BMW.
Retired: 2005 N52 E90 330i Sport 6AT
Retired: 2007 N54 E92 335i Sport 6AT
Current: 2012 M57 E70 X5 xDrive35D