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Old 10-30-2020, 04:59 PM   #71
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Edit goes away fast on this forum. Here is version 2 of the schematic. One difference is that labels 15 and 16 were in the wrong place. I fixed that. I also looked at the cable for size. 1, 2, 8, 13, 14, 15 are all "big" cables - the size is 2/0 gauge. The rest are smaller and the all same size - 2 gauge.

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Old 10-30-2020, 06:14 PM   #72
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Originally Posted by andy29847 View Post
Not really sure what you are looking at. Maybe what you think is wing nuts is really fuses and the fuse holders. I think the big cables are factory. There may be some add-Ins after the fact with small gauge wire. There is an isolater block (not shown) for the solar panel. There are some other blocks on the ceiling that I havenít figured out yet. One of the objectives of using buss bars would be to get all the small wires off the battery terminals.

This one?Click image for larger version

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Old 10-30-2020, 06:45 PM   #73
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Ahhhh, I should have known. Thanks.
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Old 10-30-2020, 07:14 PM   #74
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Edit goes away fast on this forum. Here is version 2 of the schematic. One difference is that labels 15 and 16 were in the wrong place. I fixed that. I also looked at the cable for size. 1, 2, 8, 13, 14, 15 are all "big" cables - the size is 2/0 gauge. The rest are smaller and the all same size - 2 gauge.

Thanks, nicely done Andy.
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Old 10-30-2020, 08:10 PM   #75
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[QUOTE=paul65k;5501639]Not sure if mine came from the factory like this or if the PO installed these but they certainly cleaned up the battery bay

Paul,
All the batteries in your picture appear to be the same. Were they all zero maintenance 6V batteries with the 2 engine batteries wired in series to provide 12V? Am I seeing that correctly?

All the other pictures in this thread have two 12V batteries wired parallel for the engine bank and four 6V golf cart batteries for the house bank.

Was there some advantage/benefit to your set up?
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Old 10-30-2020, 08:18 PM   #76
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[QUOTE=gmcgene;5502320]
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Not sure if mine came from the factory like this or if the PO installed these but they certainly cleaned up the battery bay

Paul,
All the batteries in your picture appear to be the same. Were they all zero maintenance 6V batteries with the 2 engine batteries wired in series to provide 12V? Am I seeing that correctly?

All the other pictures in this thread have two 12V batteries wired parallel for the engine bank and four 6V golf cart batteries for the house bank.

Was there some advantage/benefit to your set up?
Actually when I took this picture all 6 were L16 AGM Deep Cycle Batteries. I was experimenting with using 2 of them to replace the chassis batteries......didn't work out and went back to Heavy Duty 950CCA starting batteries and 4 of the L16's as house batteries (660 Ah). I ran those for about a year and then we made the conversion to Lithium. Currently, the only batteries in the battery compartment are the 2 starting batteries......I'll try to snap a shot of the bus bars which are very easy to see when I'm at the coach tomorrow.

There is very little of the factory wiring still in place, other than the bus bars now that we have converted to LiFePO4 and gone to 24V, Dual Inverter/chargers......yada, yada
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Old 10-31-2020, 05:15 AM   #77
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Well lookie here!

https://jims-machineworkx.myshopify....tery-terminals



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Old 10-31-2020, 07:59 AM   #78
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Still MUCH prefer for connections to be OFF the batteries: Isolated for positive, just a bolt through chassis member for the negative/ground.


Doesn't need to be marine grade, but here is one we use on the boat:



https://www.westmarine.com/buy/blue-...91?recordNum=5
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Old 10-31-2020, 09:50 AM   #79
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Interesting, Andy.
I can see those battery-mounted blocks being handy in a marine application---where there is no space to install an external bus.
Cool link.
You would also need to select the perfect battery so the block would fit.
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Old 10-31-2020, 10:04 AM   #80
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Winemakers pic of the battery compartment ceiling reminds me that every alpine ceiling shot I have seen has a different collection of little blocks and relays---some stand-alone, some share a common bus, some indicated as being related to steps, refrigerator, driver seat, factory solar, etc. Most with 12ga wiring but some, like Winemakers with heavier cables.
Again, it seems like WRV didn't plan it out very well. Like random leftover stuff is tacked to the ceiling because there was no plan for where it should go.
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Old 10-31-2020, 10:13 AM   #81
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Still MUCH prefer for connections to be OFF the batteries: Isolated for positive, just a bolt through chassis member for the negative/ground.


Doesn't need to be marine grade, but here is one we use on the boat:



https://www.westmarine.com/buy/blue-...91?recordNum=5
Wolfe, you bring up a good point. If one were to tidy things up with a bus bar or two, what is the appropriate amp rating for an alpine coach----keeping in mind battery boost relay, and that at least one of those pos cables comes from the alternator, right? *


*careful brianna, you are so close to the edge of not knowing what you're talking about, girl.
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Old 10-31-2020, 10:56 AM   #82
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Wolfe, you bring up a good point. If one were to tidy things up with a bus bar or two, what is the appropriate amp rating for an alpine coach----keeping in mind battery boost relay, and that at least one of those pos cables comes from the alternator, right? .

Alternator output goes to the BATTERY ISOLATOR, and from there to the house battery bank (not directly connected to the battery).


The one in my link is rated at 250 amps CONTINUOUS. Only time you will draw high amps is with boost switch on while cranking the engine.



Installing the cable to the center post from the boost switch and putting positive to inverter/charger on the same lug (those would be your largest draws) and then positive from the individual batteries on either side of it would be ideal.
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Old 10-31-2020, 11:31 AM   #83
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...think I mentioned earlier in this post--I disconnected the boost solenoid cables years ago--not much use [for me]....boost switch on early Alpines is momentary so you would have to hold down for extended use...saves 2 big bat cable connections....in an emergency, jumper cables work just fine...you can double up jumpers on positive posts as bat banks already have negative cable cross-tie....the fewer cables, the better....
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Old 10-31-2020, 01:03 PM   #84
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Aside, the battery boost saved my bacon once! Took a boat load to the Packer game a number of years ago. All waking back from Lambeau Field freezing about 2 degrees and turned the key, dead! Quietly hit the boost and my passengers never new the difference

And Brianna you are one of the sharpest on this forum!
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