cinematography Electricity in the woods

[CrazyFrazee]

Hey, quick question regarding night shooting. I'm without magic wall electricity. I do have a car, and a converter for the cig outlet.
What are my options here? How long till I knock out my car battery doing headlights, a 150watt on the cig, or both? I can't keep the engine running.
How do you guys handle this?
Thanks.

 

[knightly]

for the rim lighting, perhaps a reflector catching the headlights just off camera left behind and above the body to catch the shoulders with light.

 

[AlexLaplante]

I needed a forest to shoot also: what I did was I found a forested area with houses near it and I'm borrowing their outdoor plugs to feed the lights using really long extension cords.