Your best bet for avoiding running out of charge is to treat the second Low Battery Warning (at roughly 9 miles of range left) as something to be avoided at almost all cost. Then if you fail and reach that point, you still have a few miles of careful driving as your 'emergency charge'.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.
The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.