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Old 04-25-2017, 01:25 PM   #29
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Your AGS should be set well below 12.1V Magnum suggests 11.0 - 11.5 because any substantial load will decrease voltage below 12.1. 12..1V is 50% for STATIC voltage only. I turned on my coffee maker the other morning, and it pulled my voltage below 11.5V even though the batteries SOC was at 72%. I needed to change the LBCO on my inverter.
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Old 04-26-2017, 10:54 AM   #30
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I keep my AGS enabled at 12.2 volts, when boondocking and inverter operating inside and outside refrigerators it will go about 4 hours before genset starts. It could be an hour more or less depending on sun on small solar panel 15DS.
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Old 04-27-2017, 06:37 PM   #31
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Quote:
Originally Posted by lakebuster View Post
I keep my AGS enabled at 12.2 volts, when boondocking and inverter operating inside and outside refrigerators it will go about 4 hours before genset starts. It could be an hour more or less depending on sun on small solar panel 15DS.
At 12.2V under load, you're only using a fraction of your batteries potential. If you took the load away, you'd be surprised at what the static volage would go up to, probably 12.4 - 12.5. Turn on a coffee maker and watch the voltage drop. I'm assuming you have 8 batteries. I can go overnight (12 hours) with moderate TV usage, RF, and outdoor fridge, and still be above 65% SOC by morning. W/o the TV it is above 70%.
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Old 05-02-2017, 10:16 PM   #32
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I just got my Dutch Star 6 months ago.

Can someone tell me for sure if my house batteries charge from the alternator while driving? I'm sure the geni and shore power does, but not sure about the alternator.
Getting a new pair of 6v's tomorrow before heading to Talladega. It had 2 12v that came with it that are 4 yrs old. Don't hold much charge.
I have a little trickle charger on the roof, but nit sure it even works,
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Old 05-04-2017, 05:52 AM   #33
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I just got my Dutch Star 6 months ago.

Can someone tell me for sure if my house batteries charge from the alternator while driving? I'm sure the geni and shore power does, but not sure about the alternator.
Getting a new pair of 6v's tomorrow before heading to Talladega. It had 2 12v that came with it that are 4 yrs old. Don't hold much charge.
I have a little trickle charger on the roof, but nit sure it even works,
Easy way to tell is put a voltage metter on them while the engine has been running for a while. If they read 13.+ volts they are getting charge from the alternator. If so they should read within 0.1V of the chassis batteries. If they only read 12.7 or lower, they are not. Not sure when they started installing the BIRD relays for this.
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Old 05-04-2017, 07:11 AM   #34
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I was looking on my driver side bay where the inverter is and I have the BIRD system installed.

Thanks
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Old 05-04-2017, 08:12 AM   #35
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Quote:
Originally Posted by David D71 View Post
I just got my Dutch Star 6 months ago.

Can someone tell me for sure if my house batteries charge from the alternator while driving? I'm sure the geni and shore power does, but not sure about the alternator.
Getting a new pair of 6v's tomorrow before heading to Talladega. It had 2 12v that came with it that are 4 yrs old. Don't hold much charge.
I have a little trickle charger on the roof, but nit sure it even works,
Welcome to the forum, David
This link will get you to TSB's that will cover your coach, three pages of them, also brochures, owners guide and much more.
The links below in my signature will have more for your Newmar systems that will require work to be done on your older coach by members of older coach's.
Enjoy the forum and safe travels.

Any questions in future use the NEW THREAD at top of this forum instead of adding to someone elses thread so you will not be missed.
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Old 05-04-2017, 11:45 AM   #36
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David, if the Big Boy relay is good, there should' be less than 0.1 volts difference in Voltage between the chassis and house posts. If not try having someone press the BOOST switch and see if the relay closes. Mine works 90% of the time but seems to get stuck on occasion. Once I press the boost switch, it starts working again for a while and I can see the voltage go up on my Magnum remote. Probably needs to be replaced.
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Old 05-04-2017, 11:53 AM   #37
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Bob is right! Get a quality meter/shunt...... sorry had to.
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