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04-02-2023, 12:35 PM
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#1
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Senior Member
Join Date: Aug 2015
Location: Georgia
Posts: 191
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Battery diagram
Noob mistake.
I thought I had pictures of the way the batteries were wired before I disconnected them.
Now I have replaced all 4 and can't remember how they were hooked up and the pictures are no longer on my phone.
I watched a few video's but I am even more confused now.
Right side has 3 - 6 volt deep cycle.
Left has 2 - 12 volt chassis batteries and 1 6 volt in the front.
12 6
12 6
6 6
Right rear has 2 cables from above and a cable running from Positive to left front Negative.
I feel like an idiot.
Can someone explain, and thank you.
__________________
2002 Alpine 36MDDS
"Bali Hai"
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04-02-2023, 12:44 PM
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#2
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Senior Member
Join Date: Apr 2018
Posts: 3,441
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3 six volt doesn’t really work in any scenario unless 2 are half the output of the third. Even that is not good. You can wire them 2 in parallel and one in series but they will draw down very unbalanced. Maybe I’m confused. You have 4 six volt ?
https://www.bing.com/search?q=diagra...ZW&form=MOZWSB
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2004 Dynasty 4
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04-02-2023, 12:45 PM
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#3
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Senior Member
Join Date: Oct 2014
Posts: 7,868
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Quote:
Originally Posted by shootist
3 six volt doesn’t really work in any scenario unless 2 are half the output of the third. Even that is not good.
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Correct. 6 VDC batteries need to be wired in PAIRS/IN SERIES. So, have to be even number of them to make the 12 VDC your RV operates on.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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04-02-2023, 12:51 PM
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#4
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Senior Member
Join Date: Sep 2015
Location: Red Bluff, Ca
Posts: 422
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Andy posts great electrical diagrams and pictures. Stand by- I'm sure he will respond with the diagram you need. Or you can search his previous posts.
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Gene
1998 36FDS Alpine
Red Bluff, Ca.
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04-02-2023, 12:54 PM
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#5
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Senior Member
Alpine Owners Club
Join Date: Jun 2003
Location: Ontario, CA USA
Posts: 1,402
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I have attached a copy of the diagram for the 2001 Alpine with 4 6 Volt batteries.
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04-02-2023, 01:01 PM
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#6
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Aug 2022
Posts: 631
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Your 2 12v chassis batteries should be wired in parallel (positive to positive, negative to negative).
The 4 6-volt house batteries need to be wired up in two strings of two batteries in series (positive to negative). Those two 2-battery strings should be wired in parallel. This is the “series-parallel” configuration in the second link below.
This link has some diagrams that may be helpful
https://www.rvbasics.com/techtips/RV...-parallel.html
Here’s another diagram
https://ww2-secure.justanswer.com/up...multi-batt.jpg
__________________
2024 Renegade Verona LE - on order
2020 Tiffin Phaeton 37BH - sold
2017 Jeep Grand Cherokee
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04-02-2023, 01:27 PM
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#7
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Senior Member
Join Date: Oct 2013
Posts: 1,823
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The photo Dave posted is the factory drawing. it works if you have your batteries positioned the same way as the drawing. Here is an expanded view.
__________________
2001 Alpine Coach 38/8
ACA 2018006
Andy
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04-02-2023, 01:34 PM
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#8
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Senior Member
Alpine Owners Club
Join Date: Oct 2019
Location: Hoodsport Wa
Posts: 3,114
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Our 2000, as it was wired from WRV.
Andy’s drawing is correct, however the b+ feeds for the isolator, generator, HWH, house fuse and boost solenoid may come off either b+ from either the RR or LF GC2 battery. The main thing to get correct is the series/parallel circuit. You are making two 12 volt batteries out of four 6 volt batteries, and then paralleling the two together to make one large 12v battery out of all four GC2’s.
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2000 Alpine 36 FDS #74058
04 Jeep Wrangler TJ
"On the road to find out..."
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04-02-2023, 01:52 PM
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#9
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Senior Member
Join Date: Aug 2015
Location: Georgia
Posts: 191
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Quote:
Originally Posted by andy29847
The photo Dave posted is the factory drawing. it works if you have your batteries positioned the same way as the drawing. Here is an expanded view.
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Andy, THANK YOU,
That is what I was looking for!!!!!!!
Not sure where some of you thought I had 3 batteries??? I have 3 on the right and 1 on the left, in front of the 2 starting batteries.
Thank you all for the replies on a Sunday.
__________________
2002 Alpine 36MDDS
"Bali Hai"
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04-03-2023, 07:50 AM
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#10
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Senior Member
Alpine Owners Club
Join Date: Oct 2017
Location: Sugar Grove IL
Posts: 409
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It’s also a great time for you to think about adding Buss Bars and simplifying the battery connections. There are other good posts on that process.
__________________
Mack Mover
2003 Alpine 40 MDTS
400 ISL
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04-03-2023, 08:00 AM
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#11
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Senior Member
Alpine Owners Club
Join Date: Nov 2015
Location: Lake Havasu City, AZ
Posts: 3,007
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The one thing that I think EVERYONE should have is a "real" battery monitoring system, meaning a shunt-based system like the Victron Smart-shunt or BMV712. Both of these systems actually measure the TRUE state of your batteries, amp hours in and amp hours out.
Measuring your batteries by voltage is one of the easiest but candidly the most inaccurate ways to know how your batteries (Both coach and chassis) are doing.
When installing new batteries and hopefully bus bars, this is without a doubt the time to replace old, corroded cables and bring your system up to date
__________________
Paul & Jean
2001 Alpine 36FDDS (74291)-3900W Solar, 13,440Wh (525Ah @24V) LiFePO4
2019 Jeep Grand Cherokee Trailhawk (Hemi)
2006 Alpenlite 32RL - Sold
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