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post #1 of 10 Old 06-21-2010, 09:02 PM Thread Starter
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Question Dual Alternator

Is it possible to set up a second alternator to just charge 2 extra batteries.. I am thinking of running an Onboard welder, 4000 watt power inverter, etc.. I know you can add a York compressor from Kilby.. So I know you should be able to mount an alternator..

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post #2 of 10 Old 06-21-2010, 09:15 PM
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Sure it's possible, just about anything is with a welder and some ideas! How much power does it need? Would a small Honda/Yamaha generator get it done? May be more useful and practical to go with something stand alone?

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post #3 of 10 Old 06-21-2010, 09:37 PM Thread Starter
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Originally Posted by Goodysgotacuda View Post
Sure it's possible, just about anything is with a welder and some ideas! How much power does it need? Would a small Honda/Yamaha generator get it done? May be more useful and practical to go with something stand alone?
Oh.. I have a 15K watt generator in my garage.. It's a Generac Industrial.. I can basically run my whole house on it.. No.. Mine is more trail camping and repair.. I am building my HEEV (Hurricane Emergency Evacuation Vehicle).. I will never get stuck on the interstate.. I can find a way to get away.. So space is going to be a premium.. 3 humans and 4 animal friends.. LOL Plus supplies.. I have some ideas.. I might have a buddy model them up for me.. He is a mechanical/Electrical Engineer for British Aerospace Engineering..

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post #4 of 10 Old 06-21-2010, 11:09 PM
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i was going to get a upgraded alt.. but i never found one.. no one makes one for a JK yet.. JK alt puts out 180amps cold and i think about 40-60 hot. which blows...

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post #5 of 10 Old 06-21-2010, 11:10 PM
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JK alt puts out 180amps cold and i think about 40-60 hot. which blows...
...what? This is the first I've ever heard alternator ratings change based on temperature. Especially over 120amps in difference. Where did you find that info?

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post #6 of 10 Old 06-21-2010, 11:20 PM
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Quote:
Originally Posted by Goodysgotacuda View Post
...what? This is the first I've ever heard alternator ratings change based on temperature. Especially over 120amps in difference. Where did you find that info?
this is what i was told when i was getting my system installed and we were wondering why my system kept cutting off.. it wasnt getting enuff juice.. so the place called a alternator company and thats what they were saying.. since it a not a heavy duty alternator it only puts out half the amps when its hot..

i got a 0 gauge wire running from my alt to my battery..

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post #7 of 10 Old 06-22-2010, 07:31 AM
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Quote:
Originally Posted by BiGEN View Post
this is what i was told when i was getting my system installed and we were wondering why my system kept cutting off.. it wasnt getting enuff juice.. so the place called a alternator company and thats what they were saying.. since it a not a heavy duty alternator it only puts out half the amps when its hot..

i got a 0 gauge wire running from my alt to my battery..
Only thing I've ever heard ratings go from is rpm. Never temp, but that is interesting.

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post #8 of 10 Old 06-22-2010, 10:43 AM
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Just get a bigger alternator.

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post #9 of 10 Old 06-23-2010, 10:45 AM
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The output of a altenator is dependent of both rpm and temp
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post #10 of 10 Old 06-23-2010, 11:31 AM Thread Starter
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That is true.. But there are High Output Alternators that put out like 200amps.. Or maybe get a Sprinter Van 300amp alternator..

This is just an idea..

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Originally Posted by Marcy View Post
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