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Old 07-12-2012, 09:22 AM   #1
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Battery charger and battery disconnect

My question is when I have my camper plugged in at home will my battery charge with the battery disconnect in the off position or does it have to be in the on position?
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Old 07-12-2012, 09:42 AM   #2
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Quote:
Originally Posted by wyo700
My question is when I have my camper plugged in at home will my battery charge with the battery disconnect in the off position or does it have to be in the on position?
I would say no. It will not charge batteries if disconnect is off.
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Old 07-12-2012, 09:49 AM   #3
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Ok thank you. Kinda what I was thinking but wasn't sure.
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Old 07-12-2012, 11:12 AM   #4
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Originally Posted by wyo700 View Post
Ok thank you. Kinda what I was thinking but wasn't sure.
i think the opposite. I believe the battery disconnect is from the the house so batteries don;t discharge. I still think it;s connected to converter.
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Old 07-12-2012, 11:15 AM   #5
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Quote:
Originally Posted by gerrym51

i think the opposite. I believe the battery disconnect is from the the house so batteries don;t discharge. I still think it;s connected to converter.
The battery gets its charge from the converter if you disconnect the line between them there's no way for the converter to charge batterys
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Old 07-12-2012, 11:16 AM   #6
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Quote:
Originally Posted by f1100turbo

The battery gets its charge from the converter if you disconnect the line between them there's no way for the converter to charge batterys
You will still have 12v from converter to the camper but the batteries will not charge.
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Old 07-12-2012, 11:44 AM   #7
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You will still have 12v from converter to the camper but the batteries will not charge.

we need a second opinon from FR
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Old 07-12-2012, 12:33 PM   #8
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Quote:
Originally Posted by gerrym51 View Post
we need a second opinon from FR


Gerry, You are a hoot!

Stop pulling F1100Turbo's chain.
You don't seriously believe that...
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Old 07-12-2012, 12:34 PM   #9
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Quote:
Originally Posted by gerrym51

we need a second opinon from FR
Your battery cables go from the battery to the converter if you put a battery disconnect in one of those cables the converter cannot charge the batterys when disconnected.
Therefore battery disconnect must be (connected) to charge.
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Old 07-15-2012, 03:42 PM   #10
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where is the switch for the the connect. I have a 2008 Cherokee, we just bought and the battery keeps going down(New battery)
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Old 07-15-2012, 03:50 PM   #11
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As a general rule, they are not factory-supplied, and you need to add your own.

In fact, it's something that I yet need to accomplish, or get that three-stage converter replacement.

Decisions, decisions......

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Old 07-15-2012, 04:26 PM   #12
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Mine was put in from the factory and is located right below the convection oven/ microwave.
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Old 07-15-2012, 04:55 PM   #13
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Originally Posted by herk7769 View Post


Gerry, You are a hoot!

Stop pulling F1100Turbo's chain.
You don't seriously believe that...
I meant it when i said it but then i thought about it and i believe i was wrong.

Old man's brains
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Old 07-15-2012, 05:05 PM   #14
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No worries!
Actually after herk said that I did think u were pulling "my chain"
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Old 07-16-2012, 11:04 PM   #15
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parents trailer it fully disconnects the batteries from everything.
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Old 07-20-2012, 08:14 AM   #16
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Confirmed with the electrical engineer...

The disconnect isolates the batteries from the converter (so everything), except for what is right there at the Battery Control Center. They will not charge from the convertor if the disconnect is engaged. However we did confirm that they will get a trickle charge from the alternator since that does not run through the converter.
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Old 07-20-2012, 08:29 AM   #17
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Originally Posted by gerrym51 View Post
I meant it when i said it but then i thought about it and i believe i was wrong.

Old man's brains
I think there are a bunch of OLD FARTS around here losing it. We need a check up from the neck up... count me in.
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Old 07-20-2012, 09:29 AM   #18
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I think there are a bunch of OLD FARTS around here losing it. We need a check up from the neck up... count me in.
Wait a minute Lone Ranger, so far I'm the only one that has had the nerve to lay claim to the moniker, "Old Fart." I haven't entered into this conversation so you need to re-consider that statement. My DW still lets me out of the house alone.
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Old 07-20-2012, 10:21 AM   #19
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Wait a minute Lone Ranger, so far I'm the only one that has had the nerve to lay claim to the moniker, "Old Fart." I haven't entered into this conversation so you need to re-consider that statement. My DW still lets me out of the house alone.
Not to steal the moniker " OLD FART" just using it in the general context of things. My DW lets me out alone too, but I believe she secretly had a micro chip and gps, implanted in my neck... I get this tingling sensation in my neck when I stop at the old watering hole.
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Old 07-20-2012, 10:44 AM   #20
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Quote:
Originally Posted by bclemens View Post
Confirmed with the electrical engineer...

The disconnect isolates the batteries from the converter (so everything), except for what is right there at the Battery Control Center. They will not charge from the convertor if the disconnect is engaged. However we did confirm that they will get a trickle charge from the alternator since that does not run through the converter.
This is due to the "BIRD" only used in motorhomes.

It is a Bi-Directional Isolation Relay Manual and schematic attached (see page 4). With the ignition on and the engine running (alternator providing power) the isolation relay closes and provides charging current to the house battery.

Note: In this case power is only allowed INTO the battery; not out if the disconnect is enabled.

As to the moniker "Old FART" - I may be the only member of the forum who is ACTUALLY an Old Fart.

As a retired Federal Air Reserve Technician (FART); I am indeed an old FART.

http://www.afrc.af.mil/shared/media/...100727-004.pdf
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File Type: pdf BiDirectional Isolator Relay Delay.pdf (105.0 KB, 22 views)
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