Ya, I figured on running heavy gauge wire through the passenger side firewall to the inside, with 3 30 amp relays in parralell. Have these relays switched by the cig lighter socket. that way, the inverter is switched, but hooke direct to the battery.

I plan on using the inverter on the passenger side front floor (It is long and skinny so it should run cross-wise right along the front of the passenger seat.) I will basically be using it to charge cell phones, run my mobile DJ outfit, (uses about 250 watts a MAX volume, closer to 125 at reasonable volumes) and maybe a pc & monitor when the power is out and I need to fullfil a commitment to a client.

So ya, 500 watt continuous for long periods is a safe hi-end guess.

500 watt load @ 85% efficiency = 588.2 watts consumed = 42.6 amps @ 13.8 volts.

How fast should I run my engine to be able to sustain this? 2500?

__________________
-Matt

EPA Section 609 Certified MVAC Technician
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Oil Burner Kartel Member #10

Ahh the smell of Diesel Fuel, it's like coffee in the morning!

My Car:

1982 300SD Turbo Diesel (231,500 miles!) RIP

1984 300SD Turbo Diesel Custom (235,500 mi on driveline.) - On Road!!

www.icsrepair.com