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Old 04-09-2016, 04:14 PM   #21
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Also, a real biggie overlooked by 99.99% is wire size. I will be using 0000 (said "4 aught"). It is 3/4" in diameter with insulation. There will not be any voltage drop and efficiency will be as close to 100% for transmission as possible.
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Old 04-09-2016, 04:20 PM   #22
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[QUOTE=spock123;1158553]I wish I had not took the pictures of the batteries. ... I don't need any advice on the batteries

It's the political season and no one actually answers the question posed! You can always put more than one lug on a battery terminal, done all the time. I don't however understand the "drilling holes"part of the question. I assume that inside the inverter, both of those lugs go to the same bus bar anyway.

Now what was the question again??????
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Old 04-09-2016, 04:39 PM   #23
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Need help on wiring inverter and charger to 4 six volt batteries

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I wish I had not took the pictures of the batteries. That was not what I was asking about. I have been hooking up batteries for ten years or more. Just forget the batteries. It was really the inverter because of the two positive cables. I don't need any advice on the batteries


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Old 04-09-2016, 05:01 PM   #24
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Don't be snooty.

Members saw the knife switches, lack of fusing, scary wiring and thought you needed some help.

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I have did it before I just had more battery post to work with. I like the knife switches. If everything is hooked up right you don't ever get a short. I check all my wiring three or four time before I hook up the negative post. I may go on Amazon and find some 2 AWG. I'm going to hook up the inverter two positive cables to one post on the knife switch, then I'll only have three cables on one battery post. The camper came with four six volt batteries and the cable on them is four or more. They worked after I wired them up correct.


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Old 04-09-2016, 05:08 PM   #25
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I cant see the terminals, but it looks like the batteries are in series giving 24 V , wire like the previous posts
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Old 04-09-2016, 05:17 PM   #26
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I cant see the terminals, but it looks like the batteries are in series giving 24 V , wire like the previous posts
They are 6 volt batteries wired correctly, series/parallel giving 12 volts.
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Old 04-09-2016, 05:21 PM   #27
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Put as many on one post as you want, as long as they fit it's no problem.
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Old 04-09-2016, 05:43 PM   #28
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NO it is Not correct to load up ANY post with more than a single wire, 2 if continuing on, but even then ....The proper way is to use a bus bar. Connect each item on the bus bar that is part of the same parallel circuitry. To do otherwise invites galvanic corrosion (shows up as green slime). Is what you were asking answered?

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Old 04-09-2016, 06:11 PM   #29
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Now I know why you were asking the question. I don't know where you got that as I certainly have never seen it. "If you are going on..." where else would you be going. There are standard battery schematics that have 3 wires on one post otherwise you cannot get equal length circuits for parallel batteries, like say 4-12 volt batteries.

Obviously you can get galvanic action on any lug and post combination.
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Old 04-09-2016, 06:36 PM   #30
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Don't be snooty. Members saw the knife switches, lack of fusing, scary wiring and thought you needed some help.
Yes, folks are just trying to help you create a safe, efficient setup... Accidently drop a tool across all those knife switches & the sparks will fly! Also, the wires are too small to handle the amps possible from (4) 6V batteries... IMO you need to see a good (4) battery installation on a MH & use that as your build guide... Much heavier 12V wires are used, fuses, and everything absolutely secured so that a fender-bender does not cause a fire...

I have a good understanding of DC voltage from my RC aircraft & Ham radio hobbies... DC can push the amps & do a lot of damage so it's important to always use fuses immediately after the batteries, install heat shrink tubing over bare wires, etc. You need to be SAFE around DC w/amps just like 110V AC... It can kill ya...

However, I also still have a lot to learn when it comes to RV applications. As I am planning to install a residential fridge powered by an inverter, I had no idea I would need to consider using welding cables for the DC side until I read these forums... So I plan to gather as much info from others on these forums before I finalize my build plans.
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