500 LED Video Light panel running from $99 dollar portable battery
Testing to see how much power these 500 LED lights really consume. LED light is on full, camera is only at ISO 100. If i'm correct, I believe this 500 LED panel only requires 50w of power. That's really not much. Something like this $99 dollar portable battery (normally used to jump start cars) has two 115v outlets in the rear. So one of these batteries can power two lights directly, or with a surge protector, can power all three. It has a built in inverter inside, but there's a small fan that turns on when the inverter is running. Since these lights don't draw much power an extension cord and moving the battery pack further, audio shouldn't be a problem. If i'm at a last resort where I know I wouldn't have power readily available, or when Audio isn't an issue, this could be a decent option for location use. Run time? I'm guessing the run time will out perform those portable camcorder batteries that some of these units have. Not a bad thing to keep in the car since it can provide you with a jump. Can also serve to run a laptop if you're on the move, or charge up some batteries while going from location to location. I'll throw up a video soon enough.
There's a number of different batteries similar to this, some provide more wattage, and even comes in it's own rolling case. Check out some of the options through the link below.
Portable Jumper Battery with 115v Inverter