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12-19-2018, 09:48 PM
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#1
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Battery saga continues.
Sorry guys I need some more help. I got 2 new deep cycle batteries I guess they are size 31..? Deep cycle lead acid. Got them from battery’s plus 129.00 each. Anyway, I have them hooked up in a series and put a battery charger on it while hooked up to the coach. So after about 7 hours of charging I tried to open the hydraulic slides and the system shut down and re booted.
I plugged in the coach to shore power and everything worked as it should no problems.
I’m at a loss as to what’s wrong. Do I need to let them charge for several days since they are new..? Maybe I’m being impatient..? Just let the coach charge them?
These are the batteries I installed they recommended them as long as I had the space and I did.
https://www.batteriesplus.com/batter...le/12/sli31mdc
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12-19-2018, 09:52 PM
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#2
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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You need a 80 amp relay for the hydraulic pump motor. Do a search on this site and you will find everything you need to know.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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12-19-2018, 09:58 PM
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#3
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Montana Master
Join Date: Sep 2017
Location: Florence
Posts: 945
M.O.C. #20472
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The thing is... the power is still going through your batteries even when your 5th is hooked up to land power. I’d check all the battery grounds to the 5th frame.
__________________
2018 Ram 3500 MegaCab 4x4 Aisin, 4:10 Gears
Titan 50 Gal Tank, Air Lift Wireless Bags
2017 3160 RL
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12-19-2018, 10:07 PM
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#4
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
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aren't the group 31 batteries 12V? If so, I assume you meant hooked in parallel. Otherwise I would think you fried some stuff.
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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12-19-2018, 10:14 PM
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#5
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Quote:
Originally Posted by twindman
aren't the group 31 batteries 12V? If so, I assume you meant hooked in parallel. Otherwise I would think you fried some stuff.
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Yes sorry. Exactly how they were when I picked up the coach. Nothing fried yet lol
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12-19-2018, 10:10 PM
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#6
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Checked the grounds all are tight surprising. I do have some in-line fuses I think this is what you are talking about replacing. Couldn’t I put in a 80amp fuse..?
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12-19-2018, 10:27 PM
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#7
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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12-20-2018, 10:05 AM
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#8
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Montana Master
Join Date: Dec 2017
Location: Mountain Home
Posts: 839
M.O.C. #20949
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Fuse will not work.. must be resettable breaker
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12-19-2018, 10:31 PM
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#9
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Is it a replacement for what’s already there..? It seems my 2018 3920 is a little different from some of the pictures I have seen. Is this breaker by the hydraulic resovior ? I’ll attach a photo. Mine seems to have quite a few wires going into it.
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12-19-2018, 11:10 PM
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#10
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Ok guys I have been doing a lot of trying to figure out where this breaker is. I must admit I can do brakes, oil changes, alternators, belts, a lot of basic car maintenance. But I have never seen a breaker that looked like this. I thought it was just a connection point nothing special.
I will attach a photo with the breaker I think needs to be replaced hopefully I’m on the same page as you guys. Sorry if I made this more confusing then it actually is. My first 5th wheel so it’s a learning curve!!
Questions about computers WiFi, LAN, networks I’m your guy, knowing that is a breaker I’m not your guy lol
Tony
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12-19-2018, 11:24 PM
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#11
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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I believe the one you have circled is the one you want to replace but I will let someone else comment that has the same make and model as yours as not all rv's look alike on there wiring. You can get the 80 amp breaker at Amazon for around 30-35 bucks. Good Luck.
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12-19-2018, 11:31 PM
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#12
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Quote:
Originally Posted by Texan
I believe the one you have circled is the one you want to replace but I will let someone else comment that has the same make and model as yours as not all rv's look alike on there wiring. You can get the 80 amp breaker at Amazon for around 30-35 bucks. Good Luck.
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I think it is too since the red cable going out of the picture is going to the pump. Why didn’t they just install this at the factory..? I’m really confused on why it works when plugged in but not on battery...?
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12-20-2018, 05:26 AM
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#13
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Montana Fan
Join Date: Oct 2008
Location: Summerville
Posts: 375
M.O.C. #8908
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When you are on shore power the voltage drop isn't as much as as the batteries alone. This cause the amps it increase. Power equals voltage times amps.
__________________
Bobby . . June
2019 "3791RD" Montana - 2019 Chevy Duramax/Allison 3500 Crewcab
Summerville, South Carolina
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12-20-2018, 07:22 AM
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#14
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,896
M.O.C. #9561
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1. are your batteries like this? if 12 volt batteries. http://www.batterytender.com/connect...el-one-charger
2. when you purchased the batteries they should have already been charged.
3. did you have this problem before you installed the new batteries?
4. for the fun of it replace the 2 batteries with another battery and try it.
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12-20-2018, 08:33 AM
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#15
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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Quote:
Originally Posted by mazboy
1. are your batteries like this? if 12 volt batteries. http://www.batterytender.com/connect...el-one-charger
2. when you purchased the batteries they should have already been charged.
3. did you have this problem before you installed the new batteries?
4. for the fun of it replace the 2 batteries with another battery and try it.
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I’ll attach a photo of the batteries before I put the new ones in.
I had this problem with the other batteries. CW drained the batteries down to zero and they were not holding a charge for longer then a few days so I got new ones.
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12-27-2018, 12:27 PM
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#16
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Montana Fan
Join Date: Feb 2014
Location: Chico
Posts: 269
M.O.C. #14041
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If they are like the ones pictured you NEED to get much larger wires between the two batteries. At least #8 if you draw 80 amps for more than a moment those #12's won't suport their share of the load.
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01-15-2019, 11:49 AM
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#17
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Established Member
Join Date: Apr 2017
Location: New Ringgold
Posts: 44
M.O.C. #19693
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It appears that you maybe your Parallel lines are not heavy enough. Are youusing gauge one wires? It looks in the photo they are very small.
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12-20-2018, 09:05 AM
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#18
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Montana Fan
Join Date: Jul 2015
Location: Fort Wayne
Posts: 477
M.O.C. #17609
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a couple things based on the picture. First is the connecting wires to the left battery look undersized (to small a gauge wire). The other issue is the way it is connected, isn't quite correct as the positive to the trailer should come from one battery and the negative from the other. This ensures even draw and charge across the battery. See info/diagrams in attached article http://www.solarray.com/TechGuides/WireDiagrams_T.php
__________________
2016 Montana 3160RL w/MOR/Ryde IS and Disc Brakes
855W Solar System, TriStar MPPT-60 Controller, Magnum 2800W Inverter, 6 Trojan T-105REs
2015 Chevy Duramax SRW SB Crew Cab
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12-20-2018, 09:14 AM
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#19
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Montana Master
Join Date: Mar 2016
Location: Catoosa
Posts: 780
M.O.C. #18384
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Last2die, I don't know if this is causing your problem, but the black and white wires connecting your secondary battery to the primary battery are woefully inadequate! Those cables should be at least as large as the ones coming off the primary battery. You can pick up some proper cables at most any auto parts store.
Well it looks like mjammersc beat me to it
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12-20-2018, 09:34 AM
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#20
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Montana Master
Join Date: Nov 2018
Location: Menifee
Posts: 1,109
M.O.C. #22986
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WOW this is blowing my mind, as my wife tells me, "then how was it working before?" yeah I just look at her and say.... well nothing. LOL
I did change over the positive to the other battery and tried it, it didn't work upon reset of the system again battery percentage was 11.3, at that point I just plugged it back in as putting the slides back in would have taken forever.
I will be picking up the new 80amp breaker, and I will also pick up to new battery cables to match the thickness of the existing.
Im really getting annoyed at CW this dang thing is only 6 months old !!!
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