Will this HID Inverter/Isolator System work?

[71gtx]

I am running two 250 watt metal hallide hid fixtures on my trailer that I pull with a 2000 dodge dakota. Rather than using a generator to power these lights, I have this idea of working with the lights. Can it work?

Run the lights to a 1000 watt inverter.
Run the inverter to a Deep Cycle Battery.
Run the Deep Cycle Battery and the Car Battery to a Battery Isolator.

The alternator is 140amps.

 

[petersmith6]

im not shure wht there call over in the stats,but in england we have charging regulaters.they go between the vehicle and the secondary battery,the idea being to charge the slave battery but without flaterning the main battery.however 2 250 watt metal hallide hid fixtures will be pulling around 40 to 45 amp at 13.8 volts.a 100 amp will only last 2 hours on it own.the hard part would be wireing the trailer to the truck.it would need to tack alot of amps and some sort of regulation /control to keep it toped up.the next problem might be starting the lights.most inverter wont star and inductive load (ie a metal hallide hid ballast)my 2000w inverter will run 8 500watt flood lights,but cant start may 125 watt high pressure sodium light.may i sugest a genertor?i picked up a cheep one..i can have lights,coffee,toast,anything that can be microwaved.hey a generator has Many wonderfull uses

 

[brickbat]

Not sure how big your deep cycle battery is, nor do I know how long you expect to operate the lamps, but with two 250 W lamps, ballast losses and inverter losses, you'll be drawing in the neighborhood of 50-60 amps at 12V. That'd drain a 'typical' sized deep cycle battery in a hour or less.