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08-17-2018, 08:02 PM
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#1
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Senior Member
Tiffin Owners Club
Join Date: Sep 2016
Location: Grand Rapids, MN
Posts: 181
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Are chassis batteries charged when coach plugged in to 120V?
Been keeping an eye out for the answer, but have never seen anything. On my 2003 Bus, I am wondering if the chassis batteries are charged/maintained when the unit is plugged in. I've never had an issue with undercharged batteries and the rig has always started, but I would like to know.
Thanks in advance.
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2003 Allegro Bus 35'
330 hp, Cat 2136E
2012 Jeep JKU Rubicon
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08-17-2018, 09:23 PM
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#2
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
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Easy enough to check for your self ; with a volt meter .
After the coach is plugged in to shore power ( wait a couple of mins.) then check the voltage at both sets of batteries . If the voltage is between 13.2 and 14.1 and equal at both sets ; your coach is equipped with a system to charge the chassis batteries, AND it's working.
A volt meter or multi meter , is an essential tool for anyone with an RV.
It doesn't have to be expensive , those available for under $20 work just fine and most come with instructions. If not; there's always U Tube.
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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08-17-2018, 10:10 PM
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#3
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Senior Member
Winnebago Owners Club
Join Date: Jul 2011
Location: Beaverton, Oregon
Posts: 100
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In the case of my Winnebago, no, the battery is not charged from shore power. It is charged only when the engine is running. I use a trickle charger, but some have added diode banks to keep both sets charged when on shore power.
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2001 Winnebago Brave SE 26P
Workhorse, P32, 7.4L
2000 chassis, SuperSteer springs
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08-17-2018, 10:24 PM
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#4
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,291
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On my Class-C, my ESS is a lit toggle next to the battery/ step; I verified that turning ON put trickle charge to the chassis just the other day, so I let it trickle for about 4-hours that day just to top off charge (had been 80%- 12.46v) but chassis battery is 8yo :-) Made it easier than burning gas..
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(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
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08-17-2018, 11:22 PM
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#5
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Senior Member
Join Date: Nov 2009
Location: Warren, Oregon
Posts: 2,559
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My daughter has this one on there 05 Monaco
https://www.rvupgradestore.com/15-Am...mp-l-start.htm
My coach came with an echo charger and when it went out I installed the Magnum Combiner, works great.
https://www.invertersupply.com/index...0Listing%20Ads
2 stroker
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2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One
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08-18-2018, 08:12 AM
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#6
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Jan 2009
Location: Somewhere on the road
Posts: 615
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Quote:
Originally Posted by Tahoejeep
Been keeping an eye out for the answer, but have never seen anything. On my 2003 Bus, I am wondering if the chassis batteries are charged/maintained when the unit is plugged in. I've never had an issue with undercharged batteries and the rig has always started, but I would like to know.
Thanks in advance.
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It depends on your particular coach I have a Tiffin Phaeton, 2014 model and it has a trickle charger built-in for the chassis batteries .
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08-18-2018, 09:12 AM
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#7
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Senior Member
Tiffin Owners Club Winnebago Owners Club
Join Date: Feb 2012
Location: Las Cruces, NM
Posts: 4,040
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If you have a trickle charger, it would be mounted in a 120v outlet in one of the passenger side compartments. I remember that Tiffin used to use one that would actually discharge the batteries if the coach wasn't plugged into shore power.
I think the preferred way to go would be to add an Amp-L-Start which will keep your chassis batteries charged anytime the coach is on shore power and charging the house batteries.
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Roger & Mary
2017 Winnebago Navion 24V (Sold)
2014 Tiffin Phaeton 36GH (Sold)
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08-19-2018, 09:07 AM
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#8
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Senior Member
Monaco Owners Club Newmar Owners Club Texas Boomers Club Spartan Chassis
Join Date: Jan 2010
Location: New Braunfels, Texas
Posts: 1,308
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Are chassis batteries charged when coach plugged in to 120v?
Any large DP built in the past 8-10 years is likely set up for the inverter/charger to keep all the batteries charged while the coach is plugged in to shore power. Even you 2003 Bus at 15 years old is likely set up this way since it’s one of Tiffins leading brands.
Skip426 has the right advice to be sure.
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Dan & Linda
FMCA 399045 NKK 22240
2020 Dutch Star 4081 - Spartan K2
2017 Dutch Star 4018 - Sold - Towing Jeep Grand Cherokee Trailhawk
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08-19-2018, 09:30 AM
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#9
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Senior Member
Join Date: Jan 2016
Location: So Cal
Posts: 168
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Quote:
Originally Posted by Tahoejeep
Been keeping an eye out for the answer, but have never seen anything. On my 2003 Bus, I am wondering if the chassis batteries are charged/maintained when the unit is plugged in. I've never had an issue with undercharged batteries and the rig has always started, but I would like to know.
Thanks in advance.
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My 2004 Tiffin Open Road does not charge the chassis battery while plugged in to shore power.
I have a 100W solar panel that kept the house batteries charged. I replaced the single output solar controller with a dual output solar controller and connected the second output to the chassis battery. Have not had a dead chassis battery since.
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Kevin
2004 Tiffen Allegro 31DA, 2015 JKUR toad, Ready Brute Elite tow bar/brake
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08-19-2018, 01:05 PM
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#10
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Senior Member
Join Date: Aug 2015
Location: Phoenix, Oregon
Posts: 2,207
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I'm thinking that the aftermarket connectors (Amp-L-Start, Magnum Energy) mentioned would also provide a charge to the starting battery with the gen. running as well as when plugged in to shore power, correct?
Thanks,
Steve
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08-19-2018, 11:51 PM
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#11
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,291
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Quote:
Originally Posted by dix39
I'm thinking that the aftermarket connectors (Amp-L-Start, Magnum Energy) mentioned would also provide a charge to the starting battery with the gen. running as well as when plugged in to shore power, correct?
Thanks,
Steve
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(On my GS Class-C) NORMALLY NO CHARGE to chassis battery while on shoreline/ GEN; BUT shoreline/ GEN CAN charge chassis IF ESS Toggle Switch is turned ON; You can verify this w/ a voltmeter on your unit. Further Engine will charge COACH battery while traveling, and this is thru the relay activated by the IGN SWITCH in RUN position. Do NOT leave it ON normally, as this can then accidently allow coach to kill the chassis battery, e.g. storage
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(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
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08-20-2018, 06:45 AM
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#12
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Senior Member
Freightliner Owners Club
Join Date: Jul 2001
Posts: 1,576
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I have a related question: is the dash radio operated off the house or chassis batteries?
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Nick
Allegro Red 34QFA 2014
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08-20-2018, 08:57 AM
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#13
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Senior Member
Join Date: Jan 2016
Location: So Cal
Posts: 168
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Quote:
Originally Posted by traveler of california
I have a related question: is the dash radio operated off the house or chassis batteries?
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My 2004 was originally wired to the House batteries. I could never turn it off so that the LEDs would not shine all night. I have since wired it with a two way switch that allows me to choose the house or the chassis battery to provide the main power. The memory wire is connected to the chassis battery.
Now I can have it off when the engine is not running or turn it on when we are parked without turnig the ignition switch on.
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Kevin
2004 Tiffen Allegro 31DA, 2015 JKUR toad, Ready Brute Elite tow bar/brake
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08-20-2018, 01:24 PM
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#14
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Senior Member
Join Date: Dec 2013
Location: Lake Havasu City, AZ & Plover, WI
Posts: 6,403
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My 2003 Phaeton came with a trickle charger so that when on shore power, the chassis batteries were being charged. The problem was that when in storage with no power, the trickle charger would discharge the chassis batteries enless you unplugged it. As mentioned, the best fix is to throw the trickle charger as far as you can and install the Amp-L-Start.
AMP-L-START Starting Battery Charger/Maintainer - Overview Page
__________________
2006 Monaco Executive 44 Denali
2013 43 QGP Allegro Bus ( SOLD )
2013 Avalanche
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