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Old 11-05-2012, 05:37 PM   #11 (permalink)
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You could also run dual alternator, or replace your alternator with a higher output generator, depending on how often you plan on using it, and the age of your vehicle.

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Old 11-10-2012, 03:59 PM   #12 (permalink)
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thanks for all the advice I should have gone with a bigger alt when I replaced it... ill have to go with what I have for now.
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Old 11-10-2012, 05:37 PM   #13 (permalink)
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If the Alternator makes 90 amps, once converted it will make 9 amps x 120 volt = 1080w, the extra batteries will allow for larger wattage items, with limited run time.
I think it would run a 1500w power tool off and on without burning up, mind you with lots of off time to replenish the batteries. A larger Alternator would be nice for your set up alright.
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Old 11-11-2012, 09:53 PM   #14 (permalink)
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Quote:
Originally Posted by ecomodded View Post
If the Alternator makes 90 amps, once converted it will make 9 amps x 120 volt = 1080w, the extra batteries will allow for larger wattage items, with limited run time.
I think it would run a 1500w power tool off and on without burning up, mind you with lots of off time to replenish the batteries. A larger Alternator would be nice for your set up alright.
My alternator has a 50 amp fuse on it... but the battery can handle a surge load of 100's of amps without the alternator running at all, it does this every time you start the engine.
If you average out a standard household using 900kwh per month, that's 1,250 watt constant, 24 hours a day for a month, my electric bill is closer to 500 kwh per month or 700 watts constant to run my whole house.

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