Does anybody know of a reasonably inexpensive portable (i.e. battery powered) phantom power supply? Most of the ones I've seen are in the $150-$200 range. Or is that in itself inexpensive?
One thing to consider is the quality of this pack you are buying because cheaper may not necessarily be better.
The money you saved on buying a cheap battery pack could never buy back your reputation lost if you were to turn to the director and say "Sorry, can I have that scene played one more time? My mic ran out of juice or malfunctioned."