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Old 08-19-2014, 10:04 PM   #15
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So this is the idea. I take and make a plug for my 7-pin input a the front of my 76 tradewind. I would make the plug from a male 7-pin and only have a wire connected to the positive and negative terminals. The other end would plug in to a yamaha 1000w inverter generator on the 12v side. It should work like the tow vehicle, charging your battery when going down the road. This would work right or am I trying to hard to burn down my trailer?
Should work fine. If your trailer is wired like both of ours have been, the battery charge pin of the 7-pin connector is connected directly to the coach battery with #10 AWG wire through a 30 Amp fuse (or breaker). So you won't "burn down your trailer". Worst case you might blow the 30 Amp fuse.

(Although, as others have pointed out earlier, you can charge your coach battery faster by plugging the trailer power inlet into the 120 V AC outlet of the generator and letting the trailer's converter charge the battery.)

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Which got me thinking ( a bad sign) if I can put 12v in I can get 12v out. So I can use it as a 12v receptacle. To power something like a 12v air compressor.
Sure you can. I've done it many times.
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Old 08-20-2014, 12:32 AM   #16
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Charging batteries through 7-pin

Short answer, yes it should work, and if the circuit is fused the same as the amperage as your AS calls for or lower, there is no threat of fire or damage.
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Old 08-20-2014, 08:22 AM   #17
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I have to rethink this. The generator puts out 8 amps on the 12v and 7.5/8.3 on the 120v. So its not like I'm plugged into shore power. You can't put 8 amps into a converter and come out with 30 amps. Is there any harm in putting a 8 amps through a 30 amp converter? I guess a better explanation of my system would be helpful. I'm doing a full monty restoration on the 76. I'm putting in a new converter and 200ws of solar. The idea for the generator is to top off the batteries on the cloudy days.
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Old 08-20-2014, 08:25 AM   #18
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Since my coach has space for only one battery. I can and do plug a second (auxiliary) battery in at the 7 pin receptacle that I installed for the solar panel.
My auxiliary battery is wired with both a male and female 7 pin connector. With this setup I can have a second battery connected to the coach and also have the solar panel connected to the auxiliary battery.
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Old 08-20-2014, 09:42 AM   #19
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Since my coach has space for only one battery. I can and do plug a second (auxiliary) battery in at the 7 pin receptacle that I installed for the solar panel.
My auxiliary battery is wired with both a male and female 7 pin connector. With this setup I can have a second battery connected to the coach and also have the solar panel connected to the auxiliary battery.
Is the solar panel set up something you made? I'm not familiar with portable solar panels is the charge controller on the panel?
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Old 08-20-2014, 10:17 AM   #20
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Don't confuse 120 volt amps with 12 volt amps. 8 amps at 120 volts will easily power a 30 amp converter. 8 amps at 12 volts is a very slow battery charger, and then consider line loss through the pin connector stuff.
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Old 08-20-2014, 11:12 AM   #21
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Don't confuse 120 volt amps with 12 volt amps. 8 amps at 120 volts will easily power a 30 amp converter. 8 amps at 12 volts is a very slow battery charger, and then consider line loss through the pin connector stuff.
That is true, as is the obvious wattage difference. I am wondering how much load each places on the little 1000W genny. I'll bet it revs quite a bit higher to produce 8 amps at 120V AC.
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Old 08-20-2014, 11:20 AM   #22
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Portable solar panel

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Is the solar panel set up something you madeI'm not familiar with portable solar panels is the charge controller on the panel? 
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Yes. It is something I built. If you send me your email address. I will send you some pics and info. I did mount the controller on the panel.
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