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08-23-2018, 10:23 AM
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#21
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,658
M.O.C. #9969
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I know when using Jumper Cables, they recommend Negative last and to the frame or motor away from the battery. Don't think I ever gave it much thought when just changing batteries.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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08-23-2018, 10:28 AM
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#22
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Montana Master
Join Date: Jun 2014
Location: Vancouver Island
Posts: 894
M.O.C. #14417
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Quote:
Originally Posted by jeffba
sometimes I see a posting and I cannot help,but have fun with it
Well I just saw a source on the internet that says to remove the positive and another that says to remove the negative.
Is me of the internet that is confused?
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I was talking about reliable sources...lol
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Lenny and Ros
2012 Montana 3400RL,680 Watts Solar,4xT-105 Trojans,GP-ISW2000-12 Inverter,Trimetric 2020, EMSHW50C
2009 Chevy Silverado 3500 LTZ Duramax 4x4 CC Dually, Banks Speed Brake
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08-23-2018, 10:33 AM
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#23
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Montana Master
Join Date: Jan 2018
Location: Thornville
Posts: 546
M.O.C. #21110
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Quote:
Originally Posted by Lenny K
I was talking about reliable sources...lol
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IF it’s on the internet , it’s got to be true...
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Darwin & Carla
2018.5 3701LK Montana
2022 3500HD Denali Duramax SRW
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08-23-2018, 10:46 AM
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#24
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Ok. I just know for decades we always pulled the hot wire only on cars. Then someone said that caused problems with the computers so it went to pull the negative first. That is contrary to all electricians and code practice but it’s what the mechanics were saying
Personally I don’t think it matters on an RV.
Regardless the proper switch and fuse installation is ALWAYS ON THE HOT, RED+ leg on 12 volt DC. PERIOD! At least in the USA
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James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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08-23-2018, 10:53 AM
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#25
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Quote:
Originally Posted by mhs4771
I know when using Jumper Cables, they recommend Negative last and to the frame or motor away from the battery. Don't think I ever gave it much thought when just changing batteries.
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LOL and I was always taught you hook up ground first and on dead battery first. But I suppose there is a highly unlikely chance you could have a fire if there were sparks on top of gassing battery and since you are hooking ground up away from the battery and spark only happens when you hook up second terminal.....
But if you ask me all this is much a do about nothing
The important thing is make sure you install switches and fuses on the positive leg
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James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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08-23-2018, 12:19 PM
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#26
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Montana Fan
Join Date: May 2018
Location: Goldbar, WA.
Posts: 168
M.O.C. #21854
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Quote:
Originally Posted by CarWin
IF it’s on the internet , it’s got to be true...
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"Everything on the internet is true!"
-Abraham Lincoln
__________________
2018 3950BR - MORryde X-Factor, Disc Brakes, 3rd AC, Stacked W/D, Winegard Trav'ler (DTV), 2000w inverter, EMS-HW50C
2022 Ford F-450 Limited Diesel Dually - B&W 25k Hitch
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08-23-2018, 02:46 PM
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#27
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Montana Master
Join Date: Oct 2015
Location: westminster md
Posts: 2,318
M.O.C. #17894
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I was always taught to remove the negative first and to reinstall it last. Does not have anything to do with damaging something electronic. It has to do with safety. If you were to remove the positive cable first or install it last and happen to touch a metal grounded surface with your tool you create a dead short and could possibly have a exploding battery situation.
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2018 Chevy 3500 LTZ Dually Diesel 4x4 CCLB
2011 Montana 3455 SA. 6 point level up. Disc brakes. Curt Q24 Hitch. 5 step glow steps
Progressive EMS. Valterra tank valves. Sailun G637 tires. ARP fridge control. All led lighting. Mor Ryde IS
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08-23-2018, 03:19 PM
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#28
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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Who's on first
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08-23-2018, 03:26 PM
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#29
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Oh brother. Y’all do it anyway ya want just make darn sure the switches and fuses are on the hot side.......,,
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James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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08-26-2018, 06:36 PM
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#30
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Established Member
Join Date: May 2007
Location:
Posts: 10
M.O.C. #7209
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Beeje is correct. Being a retired aircraft mech you always remove the neg first. Should your wrench touch the metal frame the polarity is the same so nothing happens. If it was the positive side a battery has lots of amps. Could get serious burns or melt holes in the vehicle. Who knows what the battery may do. Install the neg last.
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08-26-2018, 07:16 PM
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#31
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Established Member
Join Date: Jun 2018
Location: Redding
Posts: 35
M.O.C. #22062
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Fan Noise At Fuse Box
Well gents sorry for starting that. I’m more confused than before except I will install a kill switch to the rig for storage. I am grateful for your help as we enjoyed a nice short jaunt to the Oregon Coast. Actually had some time to catch up on some owners manuals. Jim I do have the Progressive unit and blinking green light means I’m ok. Texan was my favorite reply!
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08-26-2018, 07:21 PM
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#32
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Quote:
Originally Posted by Professor Steve
Well gents sorry for starting that. I’m more confused than before except I will install a kill switch to the rig for storage. I am grateful for your help as we enjoyed a nice short jaunt to the Oregon Coast. Actually had some time to catch up on some owners manuals. Jim I do have the Progressive unit and blinking green light means I’m ok. Texan was my favorite reply!
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This wasn’t anything you should see the debates over trucks lol
I just replaced a WFCO 65 amp with a Progressive 9200 series 85 amp. Really like having the status light
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James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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08-26-2018, 10:48 PM
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#33
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Montana Fan
Join Date: Nov 2011
Location: Albany
Posts: 407
M.O.C. #11972
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my converter has a light that blinks at different rates to reflect the condition of the batteries. Check the manual for your converter.
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08-27-2018, 01:53 PM
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#34
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Established Member
Join Date: Apr 2017
Location: Harrisburg
Posts: 40
M.O.C. #19709
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Now I am getting confused, when I could not figure out why batteries were going down in storage, Camping World service manger said disconnect your negative cables, that's what I have been doing, just taking off the negative 2 cables but I noticed when I hook them up I always get a small spark. Is this normal.
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08-27-2018, 02:08 PM
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#35
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,707
M.O.C. #7992
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It is. There is always a small 12vdc load. That is why we disconnect the ground wire. The load is the source of the spark when you connect the ground cable.
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2006 3000RK
2009 Ram 2500
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08-27-2018, 02:10 PM
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#36
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Established Member
Join Date: May 2007
Location:
Posts: 10
M.O.C. #7209
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That small spark is the reason your battery is going down. There are some Items that are on all the time with little battery drain. Over time they will drain a battery. Best way to stop is install a open switch in the battery circuit or just remove the cable. Switch should be in the positive side of the Battery circuit. Some have a switch installed from the factory.
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08-27-2018, 07:14 PM
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#37
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Established Member
Join Date: May 2018
Location: Delta
Posts: 19
M.O.C. #21730
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George P
The reason to disconnect negitive first and hook up last is a lead acid battery gives off hydrogen gas when charging and removing negitive prevents sparking or arching and possible explosion of battery, I was a professional firefighter for 34 years and have seen the results of a exploding battery.
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08-31-2018, 02:29 PM
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#38
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Established Member
Join Date: Mar 2004
Location: Brentwood
Posts: 36
M.O.C. #1292
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Some converters do have a small light on them. Itol converters have a light. When light is blinking it is charging the batteries. When light is on and not blinking batteries should be charged.
Disconnect the negative first.
Also, when working on the 12 volts system and Rig is plugged into electric power shut off your converter even through you have disconnected the batteries.
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