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09-26-2018, 11:29 PM
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#1
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Established Member
Join Date: Apr 2016
Location: Folsom
Posts: 17
M.O.C. #18526
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New Batteries Showing Low Voltage
Looking for information. I replaced our two 12 volt deep cycle batteries with 4 Trojan T105 batteries wired in series/parallel. When plugged into shore power the show 13.6 volts, but when not on shore power they show 12.6 to 12.4 volts. They are not able to fully open or close the slides without me allowing the batteries to "rest" for a few seconds.
Thanks,
Paul
2016 3160RL
2019 F350 SDW FX4
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09-27-2018, 05:17 AM
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#2
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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T105 are 6V correct? So a reading of 12.4 to 12.6 with two 6V wired in series is fully Charged. Sounds like their is another issue with the slide or cable connection .Not sure if Golf Cart batteries will take the load of the slides similar to starting load of a car or truck. Hopefully someone will come along that has a similar setup
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09-27-2018, 05:28 AM
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#3
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,896
M.O.C. #9561
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something isn't right.
try a simple test and put just one 12 volt battery in and close your slides.
and 4 batteries? you must live on the wild side.:-)
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09-27-2018, 05:30 AM
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#4
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Mazboy that is a great idea!
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09-27-2018, 09:04 AM
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#5
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,380
M.O.C. #4831
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Four 6V batteries are more than enough to run the slides and power the whole coach. The voltage reading you are seeing are normal. When you are hooked to shore power the converter supplies 13+ volts to recharge the batteries (specific voltage varies depending on the current battery charge.), When the shore power is removed then the normal battery state of 12.6 or less is what you will see.
The "battery resting" you observe is the 30, 40, 50 amp self resetting circuit breaker quitting on you. Replace the breaker (80 amp is best) and the problem will go away. Do a "search" here with the term "self resetting breaker" and you should find 100's of posts on the subject.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-27-2018, 02:08 PM
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#6
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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If your slides are coming in and then stopping and will start again after a time it's your auto reset breaker. Keystone replaced our 40 amp one with an 80 amp under warranty years ago.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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09-27-2018, 04:52 PM
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#7
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,954
M.O.C. #5651
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I don't think the 12.6 is fully charged for 6 V batteries. The chart I have says 6.37, or 12.74 for 2. at 12.6 you are about 90% and at 12.4 your are right at 70%.
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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09-27-2018, 05:15 PM
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#8
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,558
M.O.C. #2283
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Quote:
Originally Posted by carl n susan
Four 6V batteries are more than enough to run the slides and power the whole coach. The voltage reading you are seeing are normal. When you are hooked to shore power the converter supplies 13+ volts to recharge the batteries (specific voltage varies depending on the current battery charge.), When the shore power is removed then the normal battery state of 12.6 or less is what you will see.
The "battery resting" you observe is the 30, 40, 50 amp self resetting circuit breaker quitting on you. Replace the breaker (80 amp is best) and the problem will go away. Do a "search" here with the term "self resetting breaker" and you should find 100's of posts on the subject.
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Listen to this Carl as usual got it right again.
Lynwood
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09-27-2018, 06:09 PM
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#9
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Montana Master
Join Date: Oct 2015
Location: westminster md
Posts: 2,321
M.O.C. #17894
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Yes I believe Carl it correct. I have 2- 6 volt and 2 -12 volts wired up in my unit and still have this issue from time to time. The replacement of my breaker is on the to do list. However I make it a point to either plug in to shore power or a genny before moving the slides and have not had the issue while plugged in. Plugging in is something you are most likely going to do anyway, so why not do it first upon set up and disconnect last upon departure. Running the slides and or the level up (if you have it ) use ALOT of amps.
__________________
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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09-27-2018, 06:23 PM
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#10
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Montana Master
Join Date: Aug 2018
Location: Minden - NV
Posts: 501
M.O.C. #22360
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My new trailer does the same on battery power. Once the hydraulic pump runs for about half a leveling cycle, the circuit breaker will trip and reset the who 12V system (lights flash inside the trailer). In my case they wired the interior 12V fuse panel to the same CB as the pump. I need to rewire to isolate the pump with its own CB. That's next on my list and easy compared the other mods I've done since delivery a month ago.
__________________
2013 F350 Lariat Ultimate CC LB
2019 3790RD
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09-27-2018, 08:24 PM
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#11
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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Quote:
Originally Posted by jetskier
My new trailer does the same on battery power. Once the hydraulic pump runs for about half a leveling cycle, the circuit breaker will trip and reset the who 12V system (lights flash inside the trailer). In my case they wired the interior 12V fuse panel to the same CB as the pump. I need to rewire to isolate the pump with its own CB. That's next on my list and easy compared the other mods I've done since delivery a month ago.
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100 of us had the same issue. Change the cheapazz breaker keystone used for the 80 amp as lippert prescribed. You may find that the problem is solved at that point without rewiring anything.
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09-27-2018, 11:03 PM
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#12
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,380
M.O.C. #4831
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Quote:
Originally Posted by beeje
Yes I believe Carl it correct. I have 2- 6 volt and 2 -12 volts wired up in my unit and still have this issue from time to time. The replacement of my breaker is on the to do list. However I make it a point to either plug in to shore power or a genny before moving the slides and have not had the issue while plugged in. Plugging in is something you are most likely going to do anyway, so why not do it first upon set up and disconnect last upon departure. Running the slides and or the level up (if you have it ) use ALOT of amps.
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I boondock about 4 months a year with a couple of 6V batteries. I NEVER have to fire up a gennie or plug into non-existent shore power to operate the slides and the levelers.
The shore power/gennie is supplying enough power to reduce the draw from the battery through the self resetting CB.
REPLACE THE CB and your need for shore power will go away.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-28-2018, 01:50 PM
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#13
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 964
M.O.C. #17801
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Agree, circuit breaker is what's resting.
__________________
2016 Montana 3711FL
2005 Ford F350, 6.0 diesel, short bed
Demco Hitchiker Auto Slide hitch
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09-28-2018, 02:24 PM
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#14
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Montana Master
Join Date: Sep 2017
Location: Tacoma
Posts: 1,567
M.O.C. #20475
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Agree with Carl 100% I have 6V battery's in are 5er and haven't had any problems when we boondock replacing the auto reset beaker should fix your problem.
__________________
Bob & Carol Washington St
2017 HC HM352RL 2018 Dodge 3500 laramie CC LB 4x4
Curt Q25 with puck system, Factory air bags
Happy Trails
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09-28-2018, 07:13 PM
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#15
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Montana Master
Join Date: Oct 2015
Location: westminster md
Posts: 2,321
M.O.C. #17894
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Carl, If you can go without any shore power or generator for 4 months you must have one hell of a solar system. There is no disagreement that the 40 amp breaker is the problem and the 80 amp replacement is the fix. I am simply trying to prevent the issue from happening to others by supplying a/c power to the unit while operating the slides.
__________________
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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09-28-2018, 08:47 PM
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#16
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,380
M.O.C. #4831
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Quote:
Originally Posted by beeje
<snip?...Carl, If you can go without any shore power or generator for 4 months you must have one hell of a solar system....
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No solar, just a Honda 2000i to charge the batteries a few hours each day.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-28-2018, 09:17 PM
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#17
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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 have the 80 amp manual reset and two Trojan six volt 105's and have no problem. If everything is working correctly then you don't need shore power for slides and jacks. You get more amps out of two 6-volts than two 12-volts. And like Carl i also have a Honda 2000i and is plenty for my needs.
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09-30-2018, 07:01 PM
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#18
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Established Member
Join Date: Aug 2017
Location: Claude
Posts: 15
M.O.C. #20300
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REPLACE the dang breaker to 80 amp!
__________________
JerryandJo. 2009 Mountaineer295RKD,. 2008 DODGE diesel. Texas bred and born.
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10-03-2018, 02:13 PM
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#19
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Montana Fan
Join Date: Sep 2018
Location: Reno
Posts: 293
M.O.C. #22620
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Check the Trojan web site. It has a series/parallel wiring diagram. Also, advise buying a hand strap to life the batteries. Trojan EZGO 609628 Battery Lifting Strap For T105 Battery. Costs about $10.
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10-03-2018, 04:05 PM
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#20
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Montana Master
Join Date: Jan 2018
Location: Northville, NY
Posts: 807
M.O.C. #21158
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Is that CB one of the one's located in my front storage compartment near the battery?
__________________
Jim B
2017 Lariat F-350 FX4, CC, SB, 6.7 PSD 4WD
2018 MONTY 3731FL, at our private winter site in GA
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