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 > Magnum ME 2012 Inverter/Converter

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CA Traveler

The Western States

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Posted: 02/24/12 03:24pm Link  |  Print  |  Notify Moderator

While the rig is in storage I have no AC power and the Magnum draws 0.3A DC. There is no switch to disconnect it from the battery. Besides adding a switch is there any way to reduce the draw?

That draw will discharge the batteries to 50% in 30 days and so I will add a switch if that is my only option.


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Corkey05

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Posted: 02/24/12 03:31pm Link  |  Print  |  Notify Moderator

I have the same inverter.

Mine has a control panel on the inside of the coach. The panel has a push button to turn the inverter on and off. just above it is another button to turn off the charge from the inverter.

The switching button has a light to show if it's inverting, .. the light is off if you push the button to turn it off.

Hope this helps.


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smkettner

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Posted: 02/24/12 04:01pm Link  |  Print  |  Notify Moderator

My Xantrex draws enough with the inverter off and the screen blank to drain the battery in a few weeks. I remove the fuse in the 12v positive cable to cut all power.

I recommend a switch, fuse or battery cable for disconnecting completely.


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MrWizard

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Posted: 02/24/12 03:39pm Link  |  Print  |  Notify Moderator

install an inline fuse on the battery cable

or use a very heavy battery disconnect switch


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CA Traveler

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Posted: 02/24/12 03:42pm Link  |  Print  |  Notify Moderator

Inverting was off when I checked the draw. The display also says it's off! Say what? The display shows off but you can read the display, so off is really what - almost off???

Any yes all input helps and I'll recheck all buttons.

BFL13

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Posted: 02/24/12 03:45pm Link  |  Print  |  Notify Moderator

With our set-up the easy way is to remove one of the inverter's wires from its battery post. Won't that work for the OP's rig?

--the Trimetric monitor does need power from the battery to show anything. it has its own little fuse in its pos wire at the battery you can take out so the Trimetric then draws no power

* This post was edited 02/24/12 04:03pm by BFL13 *


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Corkey05

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Posted: 02/24/12 04:03pm Link  |  Print  |  Notify Moderator

Your display is reading DC amps drawn by a load not controlled by the disconnect switch. It will be a 12v DC load and not the standby load of the inverter When you turned it off, it goes out of standby.

Is your AquaHot off or in standby?
Do you have solar and your panels covered? (in the shade).

Those are two questions that seem to crop up a lot, but it could also be something else.

liborko

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Posted: 02/24/12 04:22pm Link  |  Print  |  Notify Moderator

A high performance circuit breaker & manual disconnect:

ETA high performance CB

I have one of these rated 250A between the batteries and a inverter/charger.

christopherglenn

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Posted: 02/24/12 08:31pm Link  |  Print  |  Notify Moderator

The propane detector has a draw also, if you don't already have a disconnect, now may be a good time for one.


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Sailbad

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Posted: 02/24/12 09:45pm Link  |  Print  |  Notify Moderator

CA Traveler wrote:

While the rig is in storage I have no AC power and the Magnum draws 0.3A DC. There is no switch to disconnect it from the battery. Besides adding a switch is there any way to reduce the draw?

That draw will discharge the batteries to 50% in 30 days and so I will add a switch if that is my only option.


I also run the Magnum 2012. When it is turned off it draws 0 amps. What you are seeing is a DC draw in your rig. Probably the propane detector, or CO alarm. It's not the Magnum. I would add a DC switch to shut down all draws from the batteries.


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