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Old 09-23-2019, 11:27 AM   #1
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2017 Interstate Grand Tour Ext
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Battery Seperator Switch

2017 Interstate Grand Tour
Does anyone know the manufacture and model number of the battery separator switch? ST-! on the 12 volt schematic
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Old 09-24-2019, 02:40 PM   #2
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Originally Posted by StreamingAI View Post
2017 Interstate Grand Tour
Does anyone know the manufacture and model number of the battery separator switch? ST-! on the 12 volt schematic
WELCOME to AirForums!!

You might get more responses if you post in the "Sprinter and B-van Forum" subforum.

My 2013 Interstate has a battery separator made by Precision Circuits Inc. (PCI).
https://precisioncircuitsinc.com/cat...ery-isolation/

I think they still use a separator from PCI, but might be a newer model on your 2017 coach.

Hope this helps,
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Old 09-25-2019, 12:52 PM   #3
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This was on my 2018 Airstream Interstate...

Boxster1971 gave you the specifics on the company.

And do yourself a favor and remove it and replace it for a Blue Sea ML-ACR 7622... one less headache...



Or I can send you mine if you want to stick with this unit. I removed it the first week I got my new AI...

Here is a recent thread of someone that replaced theirs for the Blue Sea ACR

http://www.airforums.com/forums/f240...lp-199867.html
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Old 09-25-2019, 01:41 PM   #4
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Hi

You can save a little money by going with the 7620 over the 7622. The gotcha is that you then loose the neat yellow switch rotary lockout on the unit. I do indeed like that lockout and have it on the units I bought. Functionally that's the only difference and there is a cost savings involved.

Bob
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Old 09-25-2019, 04:03 PM   #5
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Quote:
Originally Posted by uncle_bob View Post
Hi

You can save a little money by going with the 7620 over the 7622. The gotcha is that you then loose the neat yellow switch rotary lockout on the unit. I do indeed like that lockout and have it on the units I bought. Functionally that's the only difference and there is a cost savings involved.

Bob
Bob,

Spot on. Good savings there if you have no need for that extra switch. I did not...bought the 7622 without knowing of the 7620. And since my install is under the seat, more reason not to spend the extra $$ on that model.

Thank you for calling that out
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Old 09-25-2019, 10:40 PM   #6
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Thanks everybody for the quick response.
I'm knew at this and will get in the correct forum next time.
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Old 09-26-2019, 04:01 PM   #7
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Quote:
Originally Posted by uncle_bob View Post
Hi

You can save a little money by going with the 7620 over the 7622. The gotcha is that you then loose the neat yellow switch rotary lockout on the unit. I do indeed like that lockout and have it on the units I bought. Functionally that's the only difference and there is a cost savings involved.

Bob
Good idea Bob. But I also like ability to lock out the battery isolator function when performing electrical maintenance. When I rewired my stock BIM I added several features. The attached drawing shows the changes I made to provide remote indications of battery combinations, battery charging meter on driver dash, ability to force a connection (boost) and ability to disable the BIM function.

Some might find this helpful.
Attached Files
File Type: pdf BIM Mod Drawing[Clean].pdf (178.9 KB, 5 views)
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Old 09-27-2019, 06:34 AM   #8
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Originally Posted by StreamingAI View Post
Thanks everybody for the quick response.
I'm knew at this and will get in the correct forum next time.
And the reason for changing it is because the stock unit would allow the batteries to drain more than it is safe before isolating... that is the short explanation version...

More details here:

http://www.airforums.com/forums/f240...ml#post2017417

And there is one more thread...let me see if I can find it.

Here you go...more detailed explanation

http://www.airforums.com/forums/f240...ml#post1991001
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