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04-19-2022, 07:22 AM
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#1
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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House battery
How do I know if Am using DC power from my House battery and NOT the cabin battery under the hood ?
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04-19-2022, 08:21 AM
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#2
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Senior Member
Join Date: Oct 2021
Location: Elgin
Posts: 100
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A real help is an Amp/Volt Gauge install. That way you can tell when you turn something on! Do you have an Inverter? I don't have an inverter so boondocking with no Shore Power hookup, my heat, Refer and house lights work off the house battery. I plan on installing an inverter soon!
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04-19-2022, 08:26 AM
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#3
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Senior Member
Join Date: Jul 2016
Location: Mapleton
Posts: 4,378
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Make sure you have a battery shut off switch at the battery to make sure you have them off for storage. This will also make sure yours is wired correctly. Motor homes are designed/wired to use the engine battery for starting/running and the house battery while parked. But mistakes have been made in the past. If you pull one of the house battery post connections off and everything is off than you know the house battery is the source of house power.
__________________
2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
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04-19-2022, 08:38 AM
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#4
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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When?
For what?
Pretty vague question.
House runs lights, furnace, fridge etc...and inverter if included in your rig
Truck battery runs the truck.
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04-19-2022, 09:08 AM
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#5
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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I have a 2017 Jayco Redhawk. I put 2 Trojan n6 V batteries in for the HOUSE BATTERY.
My cab battery has Lost charge. I’m wondering if the 12 V power is coming from the Trojan battery bank or NOT .
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04-19-2022, 09:13 AM
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#6
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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House battery is your House 12v system
Cab is for the engine. Be sure nothing is plugged into cigarette lighter or dash USB, it will drain the cab battery
Get a volt tester and battery Bulb tester. Very important tools for an RV.
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04-19-2022, 09:30 AM
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#7
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Senior Member
Join Date: Jun 2016
Location: Denver
Posts: 4,248
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Quote:
Originally Posted by Wayne44
I have a 2017 Jayco Redhawk. I put 2 Trojan n6 V batteries in for the HOUSE BATTERY.
My cab battery has Lost charge. I’m wondering if the 12 V power is coming from the Trojan battery bank or NOT .
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On my 2016, the only thing that drains the cab/chassis battery is stuff plugged into the dash and other Ford electronics. If your chassis battery went dead, look for stuff left on -- on the Ford side of things.
Or Chevy, if appropriate. 
__________________
2016 Greyhawk 31FK
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04-19-2022, 10:16 AM
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#8
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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Why is it that my House battery block does not operate the steps But when I connect the engine battery the Steps operated ?
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04-19-2022, 10:21 AM
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#9
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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I do have a small digital volt meter outside of my house battery block (tray).
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04-19-2022, 10:23 AM
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#10
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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Steps tied to engine so when the engine starts they retract.
How mine works...I can disconnect house battery the steps still work
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04-19-2022, 10:28 AM
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#11
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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I do have a factory installed INVERTER. Although I’m not sure just how it Works.
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04-19-2022, 10:31 AM
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#12
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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Fill me in on the Battery Shutoff Switch .(purchase/ install). I do have a small digital volt meter outside of my house battery block (tray). Why is it that my House battery block does not operate the steps But when I connect the engine battery the Steps operated ?
I do have a factory installed INVERTER. Although I’m not sure just how it Works.
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04-19-2022, 10:37 AM
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#13
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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Ok, that’s probably why my cab battery lost charge. Using the steps, while packing for a trip.
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04-19-2022, 10:40 AM
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#14
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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Um...no....that wont kill a battery
You need to test it..
How old is it?
Probably has a dead cell. Or u left the ignition on or something...or it's just old
The INVERTER runs off the house battery and usually runs a outlet for your TV to use and possibly one in the bedroom for a CPAP machine.
TV won't run when engine is running....FYI.... But can be disconnected at the plug if you wanted to
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04-19-2022, 10:41 AM
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#15
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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I'd Google search how the power systems work in an RV...
Some education goes a long long way
And read your manuals
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04-19-2022, 10:45 AM
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#16
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Junior Member
Join Date: Aug 2019
Location: Woodbine
Posts: 17
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Battery Parameters
WHAT ARE THE PARAMETERS OF THE VOLTAGE ON THE HOUSE BATTERY BLOCK ? What should it be FULLY charged vs Lowest Discharged ?
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04-19-2022, 10:58 AM
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#17
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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12.6- 12.4 charged
Anything under 12 is an issue if it is fully charged
Get one of these to test your battery to see if cells are dead, assume you don't have a sealed battery
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04-19-2022, 11:00 AM
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#18
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Senior Member
Join Date: May 2019
Location: Glendale
Posts: 861
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Again....do some research, sounds like you don't know much about your rig....
Lots to learn
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04-19-2022, 01:10 PM
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#19
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Senior Member
Join Date: Jun 2016
Location: Denver
Posts: 4,248
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Quote:
Originally Posted by Stavman
Again....do some research,
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He is. 
__________________
2016 Greyhawk 31FK
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04-19-2022, 01:13 PM
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#20
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Senior Member
Join Date: Jun 2016
Location: Denver
Posts: 4,248
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Stavman's right - the best way to tell if a battery is dead or not is one of those hydrometers. Voltage, load testing - can tell you if the battery is sick. But even voltage testing needs to be done properly (battery at rest.)
If there's a Battery / Bulbs, AutoZone, etc near by - have them test the battery.
If you've invested in Trojans, I'd also pop for a hydrometer and a load tester.
__________________
2016 Greyhawk 31FK
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