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08-31-2020, 04:34 PM
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#1
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Senior Member
Join Date: Oct 2010
Location: Surrey BC
Posts: 121
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Battery Bridge?
I have a 1999 Pace Arrow and I have had some battery issues. When I was checking things out, I noticed I had 4 large battery cables connected to my single Pos battery post. I was wondering if there is a battery bar or bridge that I could bolt onto the body of the RV, run a cable from the battery to this bridge and then connect each cable to a separate post on the bridge? I thought of taking a 1" x 1/4" flat steel bar, drill 5 holes in it, put in 5 bolts to connect the cables to and insulate the back and sides. Not sure about the power lost using steel.
Still need to find out why there are 4 cables!
Regards
Wayne
__________________
1999 Pace Arrow 33ft gas
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08-31-2020, 04:43 PM
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#2
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Senior Member
Join Date: Oct 2017
Location: Elk Grove CA
Posts: 1,618
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__________________
BobC
2002 Itasca Suncruiser 35U
Workhorse Chassis
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08-31-2020, 04:53 PM
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#3
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Senior Member
Damon Owners Club
Join Date: Apr 2020
Location: Clovis NM
Posts: 4,389
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Every inch you add to the length of your cable run, reduces the available voltage at the end of the run.
__________________
2006 Damon Daybreak 3276 35'with 5 Star Tuner. 3 200 Amp Lithium batteries and 2000 watt PSW inverter/charger. 2013 Elantra on a Master Tow dolly.
Retired USAF
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08-31-2020, 04:54 PM
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#4
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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As Bcam said, you're looking for a buss bar, not a "bridge". The one he linked looks pretty good but even on that one you will need to double up on one lug for the cable back to the battery positive post.
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08-31-2020, 04:59 PM
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#5
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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Quote:
Originally Posted by HarryStone
Every inch you add to the length of your cable run, reduces the available voltage at the end of the run.
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True, and in his case an extra foot of 1/0 battery cable will drop 39 millivolts at 200 amps. Probably not worth worrying about.
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08-31-2020, 05:10 PM
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#6
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Senior Member
Join Date: Jul 2014
Posts: 35,442
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Quote:
Originally Posted by HarryStone
Every inch you add to the length of your cable run, reduces the available voltage at the end of the run.
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The voltage drop over 1 foot of 2-0 cable, AT 200 amps, is .030 volts. At 100 amps its only .020 volts.
12.6 volts at the battery leaves you 12.569 volts, a foot away. My meter would round that up to 12.6 volts.
Hardly anything to worry about.
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08-31-2020, 10:56 PM
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#7
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Senior Member
Join Date: Oct 2017
Location: Elk Grove CA
Posts: 1,618
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Quote:
Originally Posted by tfryman
As Bcam said, you're looking for a buss bar, not a "bridge". The one he linked looks pretty good but even on that one you will need to double up on one lug for the cable back to the battery positive post.
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Doubling up on one post won't be a problem. And, as others have indicated, the voltage drop due to the cable to the buss bar.
__________________
BobC
2002 Itasca Suncruiser 35U
Workhorse Chassis
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