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Old 05-17-2014, 01:08 PM   #15
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I'll just join in with a note: I purchased my Lifelines from Lewster and have been delighted with the performance and price.

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Old 08-02-2014, 08:10 PM   #16
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I just installed lifelines to replace the old interstates. They're wired in parallel per airstream's instructions: with the positive and negative wires to the coach on different batteries.
Can someone confirm this looks correct?
And does it matter that the positive cable connecting the batteries is a bit Click image for larger version

Name:	ImageUploadedByAirstream Forums1407028248.387884.jpg
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ID:	218093longer than the negative cable?


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Old 08-02-2014, 08:57 PM   #17
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Quote:
Originally Posted by Hudsoncamp View Post
I just installed lifelines to replace the old interstates. They're wired in parallel per airstream's instructions: with the positive and negative wires to the coach on different batteries.
Can someone confirm this looks correct?
And does it matter that the positive cable connecting the batteries is a bit longer than the negative cable?

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Not sure if this would help, but here's the pic of my interstates I took before taking them out last winter to put on a charger.



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Old 08-02-2014, 10:04 PM   #18
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It's always best to have the positive cable on battery #1 and the negative cable on battery #2. This provides even charge and current draw from both batteries.

Also, I would increase the parallel cables to AT LEAST 2 AWG. You can be sure that the inter-connects between the battery cells inside each unit is far larger than the wimpy 6 or 4 AWG that Airstream provides.




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Old 08-02-2014, 10:46 PM   #19
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Quote:
Originally Posted by Hudsoncamp View Post
I just installed lifelines to replace the old interstates. They're wired in parallel per airstream's instructions: with the positive and negative wires to the coach on different batteries.
Can someone confirm this looks correct?
And does it matter that the positive cable connecting the batteries is a bit Attachment 218093longer than the negative cable?


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It looks correct to me. In my diagram and photo below, the difference is that I have two additional wires connected that go to the solar charging system.

For more information: See my AirForums' thread, "How I changed my Lifeline AGM batteries".
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Name:	DSC_0093 New AGMs hooked up.jpg
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Old 08-03-2014, 01:26 PM   #20
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Originally Posted by lewster View Post
Also, I would increase the parallel cables to AT LEAST 2 AWG. You can be sure that the inter-connects between the battery cells inside each unit is far larger than the wimpy 6 or 4 AWG that Airstream provides.



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RVIA/RVDA Nationally Certified Master Tech
Master Tech Energy Systems, Inc.
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Lifeline Batteries**Magnum Inverters
541-490-6357
Thanks Lew. I will switch to 2 AWG to connect them. I had to get custom lengths (9") with 3/8 lugs on one, and 5/16 lugs on the other since the Lifeline posts are different sizes.

I think the two cables I used are not only different lengths, but it looks like the original negative cable may be 6 AWG and the replacement positive is definitely 4 AWG. As the trailer is 2 hours away from me, and the batteries are just topping off with solar, is it a problem to have different gauge, and length, cables for a week or 2?
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Old 08-03-2014, 01:42 PM   #21
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Originally Posted by Hudsoncamp View Post
Thanks Lew. I will switch to 2 AWG to connect them. I had to get custom lengths (9") with 3/8 lugs on one, and 5/16 lugs on the other since the Lifeline posts are different sizes.



I think the two cables I used are not only different lengths, but it looks like the original negative cable may be 6 AWG and the replacement positive is definitely 4 AWG. As the trailer is 2 hours away from me, and the batteries are just topping off with solar, is it a problem to have different gauge, and length, cables for a week or 2?

Shouldn't be a problem.


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RVIA/RVDA Nationally Certified Master Tech
Master Tech Energy Systems, Inc.
AM Solar Certified Installation Center
Lifeline Batteries**Magnum Inverters
541-490-6357
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