I have one of these with a 60 amp battery in it to run my little fan also does me for camping as well with a couple of cheap flouros for the tent and oustside.
http://www.supercheapauto.com.au/onl...=12358#details
My Secondary and telrad dew up now and then to which a 12 v hair
dryer plugs into a spare socket hanging off the battery box, only takes a minute to warm things up a little .
http://www.whitworths.com.au/main_it...AbsolutePage=1