I know this doesn't belong in a computer forum, but I can't figure it out for the life of me. I'm running 2 150 watt lights off of a 12v battery with a 400 watt inverter. I need to know the battery life in hours I can get with this rig. Does anyone know a formula for this kind of problem?

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Hello

It depends on the details of your battery, is it a car battery and what size is it? There should be amp-hour details related to the battery. A 400 watt inverter is massive, I can't imagine it being very efficient.

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400 is the smallest they come. I've seen 4000 watt inverters that run off of 10 batteries. n e ways, I think I'm just going to do a test run to find out. thanks for the replies btw.

__________________
Intel E4500 Dual Core ~2.2ghz
Radeon 2400PRO ~525Mhz w/ 512mb
Triboot Xp, Vista, and Ubuntu WD 250g