New house batteries

[Piaz]

I am planning to install four new agm gc 6 volt house batteries to replace Trojan 105 batteries in my 2006 Inspire. I think there should be a shut off switch before I disconnect the batteries. Where is that switch?

[dons2346]

Look in the compartment either in front of the batteries or the compartment behind. You should have two switches, one for chassis and one for house

[Piaz]

Thank you Don I will take a closer look at those areas.

[GoldenRetrieverAgility]

Good Morning,
We have a 2005 Inspire DaVinci 330 and have no master switch for our house batteries, other than the rocker switch at the switch array on the right side of the passenger seat.
Our chassis battery has a "switch" located in the rear side of the partition divider in the battery compartment forward of the PS most rearward compartment. (2nd from the rear).
Hope this helps.

[Hmbrewr]

I concur with post # 4, I have a 2006 inspire Genoa and thats where the cutoff switch for the Chassis battery is. On the wall of the compartment behind the Chassis battery. I just replaced my house batteries with 4 lifeline 6V AGM's. I did not turn off any switches, I carefully removed the ground cable 1st, then the rest. Make sure you take a picture of where everything goes, and also label each cable. It's not rocket science, but it can become confusing as to where each cable goes. Good luck with your project

[Piaz]

Thank you for all the response to my question. I too discovered that there is no shut off for house batteries except the rocker switch near the door. I did the install yesterday. My back is in healing mode today. Those things weigh near 70 lbs each. Now I need to make sure the inverter/charger is set correctly.

[IASM]

One note ,just to not surprise you ,is you can get an arc or snap when messing with the house batteries. I think this is due to some capacitor discharge from your inverter. Not a big deal but it could startle you.

[DirtyHarry]

Please explain the advantage of using 4-6V over 2-12V house batteries, I'm considering going with AGM. I currently have 2-12V.

[twinboat]

Originally Posted by DirtyHarry

Please explain the advantage of using 4-6V over 2-12V house batteries, I'm considering going with AGM. I currently have 2-12V.

Typical normal size 12 volt batteries are around 100 AH capacity each. 2 will give you 200 AH. They do make 200+ AH 12 volt batteries but they are huge.

Typical 6 volt batteries are about 200 AH each. You need 2 to make 12 volts but that adds up to 200 AH capacity. Add a second pair and and your up to 400 AH.

Sent from my SM-A025V using iRV2 - RV Forum mobile app

[deandec]

My 12v 8D deep storage batteries were @ 200 amp hours each.

Using 4 6v Golf Cart deep storage gained about 40 amp hours vs the two 8D batteries.

The GC batteries weighed about 1/2 of the 8D batteries. Much more manageable for me.

[Winemaker2]

Originally Posted by DirtyHarry

Please explain the advantage of using 4-6V over 2-12V house batteries, I'm considering going with AGM. I currently have 2-12V.

The reasoning largely applies to FLA...
See https://marinehowto.com/what-is-a-deep-cycle-battery/

Most 12V FLA even those called "dual purpose" or marine/RV are not true deep cycle. 8Ds are generally the same design unless you buy specialty 8Ds with AH specs.
When switching to AGMs the FLA guidelines go out yhe window as they don't transfer directly. Batty mfgrs pack AGM into the same dimension case as FLAs but the FLA design advantages of plate thicknesses and depth of electrolyte below plates don't apply.
Battys are an energy storage device and there is no magic that allows you to get "twice as much" energy when you store it as 12V vs 6V... you need to consider the V as well as the AH and when you do the differences are very small.
2 - 6V AGM battys (series) are roughly 200AH @ 12V
2 - 12V AGM battys (parallel) are roughly 200AH @ 12V

Either of the above are roughly equivalent to an 8D +/-
Most AGMs list both AH & CCA
Both of the above will serve as deep cycle or start application equally well (confirmed by both Trojan & East Penn)