Does battery charge with disconnect flipped?

[bubbles]

Actually, that particular solenoid doesn't have a reference designator. I believe all BJ's are jumpers; at least according to the ref designator box. Anyway just thought I would comment.

[garythelen]

Originally Posted by bubbles

Actually, that particular solenoid doesn't have a reference designator. I believe all BJ's are jumpers; at least according to the ref designator box. Anyway just thought I would comment.

Your right. I tried to show a better view of it by copying a portion of the sheet 5 pdf but it would not work, sorry. It is located in a compartment behind the rear tires on the passenger side along with those big fuses and 12 volt circuit breakers.

[benagi]

Originally Posted by TURBS

What speculation?
If the battery is disconnected it cannot and will not charge period [emoji17]

I've seen this question in the past. May be different for motor homes. Our 3171 will charge with the coach battery disconnect in the off position when the main engine running or on shore power. I know, I have checked with a volt meter.

[Witch Doctor]

Originally Posted by benagi

I've seen this question in the past. May be different for motor homes. Our 3171 will charge with the coach battery disconnect in the off position when the main engine running or on shore power. I know, I have checked with a volt meter.

I do not doubt that is a way a MH works, but my question to you is why have a disconnect? Maybe storage?...I know mine will not charge with the disconnect pulled. But I did have parasites that I put SPST switches at, because they would drain my batteries even with the disconnect off....

[ScottBrownstein]

Originally Posted by garythelen

Mine does. Both battery banks will charge and several other circuits are still live with the disconnect activated. And the chassis battery will charge with the chassis disconnect activated. See the attached drawing.

You are right. apparently a lot of loads on your coach work with the disconnect pulled. Strangely your converter/inverter is always live, which is kinda strange, but I guess that was the only way to make the converter work with the disconnect off, but it is prone for discharge if the inverter is left in the on position.

[bubbles]

Originally Posted by Witch Doctor

I do not doubt that is a way a MH works, but my question to you is why have a disconnect? Maybe storage?...I know mine will not charge with the disconnect pulled. But I did have parasites that I put SPST switches at, because they would drain my batteries even with the disconnect off....

Yes, storage but some items still require monitoring due to their nature (safety perhaps). Also I believe there is a legacy reason for the disconnect in that when shore power is available to prevent over charge and boil out. Of course this is not necessarily an issue due to todays converters. JMO

[TURBS]

Yeah but this ain't no Moho


2008 2500hd Duramax
2015 Columbus 320RS
2016 nights camped "5"
2015 nights camped "34"

[youroo]

Originally Posted by TURBS

If disconnect is off they won't charge.




2008 2500hd Duramax
2015 Columbus 320RS
2016 nights camped "5"
2015 nights camped "34"

I would add,If the Disconnect is "Wired Properly" your battery will power "Nothing" and will NOT take a Charge! Youroo!!

[W5CI]

I am totaly confused by this discussion about battery disconnect. If the disconnect switch is switched off NOTHING should work Period. If stuff still works the disconnect is not a disconnect, if you cut a wire the current will not flow no matter what. if some manufactures are putting disconects in that dont disconnect ,they are just wasting time and money. IMHO

[Asrabbit]

It really depends on where in the line of things the disconnect switch falls. If there are items connected to the battery that are in front of the switch, then those will work regardless if the disconnect switch is on or off. In addition, if the line charging the battery is in front of the switch, then the battery would charge regardless if the switch is on or off.

[KyDan]

Some battery switches do not shut off everything on some rigs.
The logic there is up to the designers who aren't always logical at all....
As you can see by reading this thread there are all different ways to wire a
"disconnect" switch.

Me-personally- when I shut off the batteries I want them connected to
nothing inside the trailer- period.
So I added my own Blue Sea battery switch at the battery box.
They are relatively easy to install and I've put one in every trailer I've owned.
(I should have bought a bulk pack of them years ago!!)

Motor coaches and others with engine start battery and house batteries and generators aren't quite so easy and thus the multiple answers to what at first glance seems a simple question!

Happy Trails!

[bubbles]

Originally Posted by W5CI

I am totaly confused by this discussion about battery disconnect. If the disconnect switch is switched off NOTHING should work Period. If stuff still works the disconnect is not a disconnect, if you cut a wire the current will not flow no matter what. if some manufactures are putting disconects in that dont disconnect ,they are just wasting time and money. IMHO

As stated, some items are fused directly off the battery but require a switch to activate that item (levelers/awning etc.) and therefore, technically, they are not putting a drain on the coach battery whether disconnected or not. In some installs there are items that have been deemed necessary to be powered even when disconnect is actuated (LP/O2 etc.) but would require minimal millivolt drain on battery. Evidently it is a crap shoot as to what each RV does when it comes to battery disconnect functions. As also stated take your volt meter and check your battery in each state of configuration and then you'll know what is what.

[Ham Camper]

I bought a marine battery shut off switch and mounted it on the A-frame right next to the battery. Now when I leave the trailer in storage for a while and come back I just flip the switch and power up. No more dead batteries from things still drawing juice when all switches are off.

[Dano1955]

My battery charges and landing gear are functional with the factory disconnect. Nothing else, which works perfectly for me. Wouldn't have it any other way