Build a portable power pack with nothing but Wal Mart components.
Only $25 if you have a spare/free car battery.
Use a Group 24 marine deep cycle battery for best results of course.
EverStart Marine 24DC - $58 (as of 07/01/2011)
Battery terminals not needed if you use a marine deep cycle.
They normally have small lugs with wingnuts included.
Parts:
Marine battery box - $9.00
12v accessory socket - $5.00
ATO fuse holder - $3.00
Two battery terminals - $7.00 (not needed if you have marine batt.)
Two ring terminals and a butt splice - $cheap
Tools:
Combo wire stripper/crimper - $4.00
Check out my other videos to see this pack power a large woodgas cook stove.