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Old 02-06-2016, 11:25 AM   #1
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RS3000 Xantrex settings

Polling the brains: Looking for some ballpark values to make sure my RS3000 system is set properly, especially for automatic gen start, charging rate, battery bank, etc. Specifically:

Question 1. I have 6 - 6 volt coach flooded cell batteries, each is 220 amp hours (I also have 2 main engine batteries). What setting should I have in the Battery Bank Size? The range is 50-2000 amp hours, and since the batteries are Series-Parallel installation, I'm guessing I should enter 660 amp hours. Default is 440 ah.

Question 2. Reference the above info, I have the Automatic Generator Start enabled to start the generator when the system voltage depletes to 11.3 volts (factory default). How/Where do I set the point at which the generator automatically shuts down after charging? Is it the charging rate (currently set at 100%) or some other input/value?

Thanks in advance for your help....

Carolyn, Jim, and Clara Allen
'05 Newmar Dutch Star
Fisherville, KY
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Old 02-06-2016, 02:34 PM   #2
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OQuestion 1, 660 AH is right.

Question 2, 11.3 volts is dead battery voltage. I'v read on this site that many use 11.9 volts. 12.06 volts is 50% capacity and for long life it is recommended that you stay above that.

Part 2 of question 2, The charging rate is figured when you tell it your battery bank AH rating. 660 AH.

If you want a slower rate you can dial it back with that setting.

If 100% is 75 amps, you can set it to 50% and it will charge at 37.5 amps.

Not to sure when you would need that unless your specific batteries require a lower the standard charge rate.

Voltage or time is usually used to shut down the generator after an auto start.

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Old 02-07-2016, 09:19 AM   #3
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1. 660 is right

2a. Agree with twinboat - you want to start charging before you get to 11.3v. However, that's not totally "dead" because the battery is still under load when the AGS voltage is detected. If the load was removed, that voltage would probably bounce up to 11.6 or so, which is about 25%. Still very low, though. I would suggest setting the AGS start voltage to at least 11.6v-11.8v.

2b. I think the AGS function is actually part of the remote, not the RS3000 itself. Do you have the RC7GS remote control panel? Or maybe the Link 2000 panel instead? There is a generator stop parameter for the RC7GS that is a percentage of SOC (state of charge), 0-99%. For practical purposes, choose a value somewhere between 80% and 99%. 80% is a decent level of charge, but obviously 100% is the goal. Use that unless you want to limit the run time for noise reasons.

If you have the RC7GS, get the manual to learn about the settings.

Xantrex also has a separate AGS system with its own panel. It doesn't seem to have as many charge paramters to control as the RC7GS, but does a lot with time of day settings and such. It has a different manual to study!
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
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