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Old 01-23-2014, 01:36 PM   #1
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Checking Coach Voltage on the Cheap

Not sure if your batteries are being charged. The dummy lights only tell you how much charge there is in the battery, but it won't tell you if they are actually being charged by the engine, shore power, or generator. Install this into your house 12v cigarette lighter and monitor from inside.

Just remember that a fully charged battery is ~12.6v.
Can't beat it for 6 bucks:

12V 24V LED Car Auto Vehicle Cigarette Lighter Smoking Voltage Gauge Volt Meter | eBay

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Old 01-23-2014, 07:32 PM   #2
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Have you seen the "remote pendant" that plugs into the converter that shows the status?

Converter Status Remote Pendant

Been meaning to ask if anyone got one with their MH. It looks like it comes with the converter if you buy it but you can order one for $10.95. Would be nice if it actually did work remotely but still been thinking about ordering one
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Old 01-24-2014, 07:32 AM   #3
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I'd have to look, but I believe our converters include the charge wizard. It would be nice to have the pendant, but not sure it's worth the install. It looks like it has a ribbon cable that has to be routed from the converter way in the back to wherever you want to install the pendant. I think it will be redundant with the charge wizard running.
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Old 01-24-2014, 07:44 AM   #4
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Quote:
Originally Posted by cjd10 View Post
Have you seen the "remote pendant" that plugs into the converter that shows the status?

Converter Status Remote Pendant

Been meaning to ask if anyone got one with their MH. It looks like it comes with the converter if you buy it but you can order one for $10.95. Would be nice if it actually did work remotely but still been thinking about ordering one
Pendant doesn't give any kind of voltage reading.

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Old 01-24-2014, 08:21 AM   #5
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Quote:
Originally Posted by alparmmer View Post
Not sure if your batteries are being charged. The dummy lights only tell you how much charge there is in the battery, but it won't tell you if they are actually being charged by the engine, shore power, or generator. Install this into your house 12v cigarette lighter and monitor from inside.

Just remember that a fully charged battery is ~12.6v.
Can't beat it for 6 bucks:

12V 24V LED Car Auto Vehicle Cigarette Lighter Smoking Voltage Gauge Volt Meter | eBay
Any device that measures voltage that connects to wiring inside the camper (and not to the terminals of the battery) will only tell you the voltage is available IN the camper; NOT at the battery.

Just because there is 13+ volts in the camper does not mean the battery is "seeing" it. There are two inline fuses between the battery and the camper's 12 volt wiring, either one of which can be "open" and prevent the battery from charging; yet show 13+ volts inside (when on external - shore - power).

Fuse one - protects the battery and is located right AT the battery. If this is open everything works in the camper (including slides and stabilizers) when on external power, there is 13+ volts on the camper, and yet the battery will not charge.

Fuse two - protects the camper from the tow vehicle's charging circuit and is located near the pigtail junction box. If this is open (and you are on shore power), everything works inside at 13+ volts BUT the main slides, power stabilizers/jacks, and power tongue jack (if equipped) will not and the battery will not charge.
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Old 01-24-2014, 02:43 PM   #6
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Hey, for 6 bucks is better than nothing. I understand what you are saying, but it would be a PITA to hook it up directly to the battery terminals. Besides, when the engine is off and there is no shore power you can see the live status of your battery.
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Old 01-24-2014, 02:55 PM   #7
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Originally Posted by alparmmer View Post
Hey, for 6 bucks is better than nothing. I understand what you are saying, but it would be a PITA to hook it up directly to the battery terminals. Besides, when the engine is off and there is no shore power you can see the live status of your battery.
Agreed.

Just so everyone knows that the voltmeter will only show voltage being supplied to the camper and not, necessarily, the battery.
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Old 01-24-2014, 03:15 PM   #8
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Appears that you have something going here. Your awning power is supplied to the awning switch directly via a 15 amp fuse connected to the battery. I believe the switch is located by the entrance on your unit. There is enough space on the switch panel to mount your indicator and it would be readily viewable from anywhere within the coach forward end. It could be tapped off the awning 12v feed at the switch and a ground anywhere within easy reach with no degridation in awning performance. It would also be fuse protected (15A) and the awning switch could provide a test in case the indicator was blank. Just a thought. 02 alarm feed from battery is also there protected by a 5A fuse. Step power is there protected by a 20A fuse. Outside light also there. All this of course is predicated on the preceeding switches located at the entrance where mine is located.
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Old 01-24-2014, 04:32 PM   #9
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That would be a great spot for it. Something to tinker with once it warm up a bit.
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Old 01-24-2014, 09:21 PM   #10
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The only way to see actually battery voltage is to disconnect shore power, no generator and have the gauge hooked up to the batteries.
Then you will see if your batteries are holding a good charge or not.
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