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Old 04-15-2020, 08:17 PM   #1
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House batteries not charging.

So my Rc7 gs shows my battery percentage at 73% and it’s been staying there for the last week plugged into shore power. The percentage goes down when I turn on lights but then recovers once they are off. It use to stay at 100% when plugged in to shore power. Batteries are 3 months old, and should have minimum draw. The other panel is not showing any charging but the house batteries are reading 12vdc. Is the RC panel inaccurate? Are my batteries not being charged? This is on a 2003 Monaco Dynasty Baroness. Thanks!
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2003 Monaco Dynasty Baroness 400hp ISL Tag Axle
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Old 04-15-2020, 10:21 PM   #2
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If your volt meter says 12 volts , then the 73% is fairly accurate , full charge 12.6 /12.7 volts at rest would be 100% .
If you check the voltage when the charger is working , then even a float charge would be 13.1 volts , bulk charge 14.2 volts .
Your charge system isn't working properly or one of the new batteries has failed , time to have them checked for water level and load tested , and check charge system output, at the battery bank.
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Old 04-16-2020, 06:02 AM   #3
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Inverter is 12.6 as it is at the batteries I ran the coach to charge the batteries before I started. Inverter is a rv2012 led light is red maybe orange solid, which is either bulk charging or over current. I’m going with bulk charging since that’s what the RC7 readout says. I do have 120ac voltage coming in and out of the inverter. I suppose the inverter is bad. Is that something that can be rebuilt? Any other suggestions?
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2003 Monaco Dynasty Baroness 400hp ISL Tag Axle
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Old 04-16-2020, 07:13 AM   #4
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Check and clean all battery connections. Check each cell in each battery with a hydrometer.

You might try unplugging and see if the inverter actually does provide power to the 120 volt circuits.



I've been having trouble with my charging circuit but I've been trying to rely solely on solar charging. The system was working fine and then all of a sudden it wouldn't maintain the battery. Plugged in and got the batteries fully charged and now the solar is keeping up. Did the same thing last year. Driving me crazy.
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Old 04-16-2020, 08:11 AM   #5
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if the batteries are only 3 months old that means to me that they were just installed. that means removing and reattaching battery cables. are you sure they are attached properly? could the battery cables been shorted during the removal / install and the reverse polarity fuses are blown? could the person doing the install have turned the battery disconnect switch off and failed to turn it back on?
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Old 04-16-2020, 10:06 AM   #6
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I did the install and no, no, and no. It worked fine for 3-4 months. There is no fuse on the inverter it’s a push button reset. The breakers are good and I verified 120 volts Ac at the inverter.
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Old 04-16-2020, 10:08 AM   #7
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Is there an inverter that works with the RC7 since it looks like the solar rv2012 is no longer available?
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Old 04-16-2020, 10:49 AM   #8
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Good morning Cclark746; In my 2001 Windsor I have the Trace RV2012 inverter with the RC7 GS remote panel. I have posted here before about some strange operation of the Trace Inverter on the charging side of the unit. I have mine plugged into shore power at the house at all times. Everting is normal and house batteries are at float charge with a voltage of 13.6 to 13.8V. Sometimes if I get a 120V power interruption the Trace will go to absorption charge and stay there and never go back to float charge. If I turn off the 120V shore power and turn it back on we go back to float change and everything hunky dory. From what information I have gathered there is a relay in the inverter that might need replacing. For an experiment I would reboot the inverter. Instructions are in the owners manual for the Trace. I have done this with some success. I have the names or name of a gentlemen in Ca. that works on Trace inverters if you need to go that route. Try the reboot and suggestions of others here. So far mine just keeps plugging along except wit the problem with the power interruption and that does not happen very often. Let us know what you find out in your diagnoses. Good luck!
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Old 04-16-2020, 02:10 PM   #9
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Awesome I’ll try and reset it, can you give me the guys name and info thanks!
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Old 04-16-2020, 08:44 PM   #10
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120v side works when not plugged in to shore power.
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Old 04-17-2020, 05:26 AM   #11
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Well this am I just checked on the converter and it’s on float charge batteries are 100% so I’m mind boggled.
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Old 04-17-2020, 10:50 AM   #12
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Good morning Cclark746; Sounds normal to me. With some of our electronic equipment getting close to 20 years old I think we need to get use to some of these events happening. I agree with Jacwjames that the best way to know our battery health is to check the voltage at the batteries and now and then to check them with a hydrometer to know what's going on. Your inverter on the changing side could have had a senior moment like mine does now and then.

Here is a name of a gentlemen who works on Trace Inverters. I got this information off this IVR2 forum from others here who posted Trace Inverter problems. If I remember correctly reading that someone in this forum sent their Trace here to get it repaired and they were satisfied with the work done. Again, going by memory as I read so much in this forum. Mark Synder Electric. Poway, Ca. Phone# 1-858-231-3386. Ask for Mark. Also have written down, Tekris Power Electronics. Have to do some more checking on the latter. I guess you can decide to give an update later to see if everything has straightened out or the inverter still has a mind of it's own. Good luck!
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Old 04-17-2020, 06:11 PM   #13
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Thanks, I hate not knowing the problem and fixing it. Never know where I will be when it arises again. Guess a spare inverter might be in my future.
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Old 06-30-2020, 02:46 AM   #14
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So now that I have a lot more time in the RV, looks like the batteries cycle from 60ish% to 100% continuously plugged into shore power. Staying on 100% more often. I might wake up in the am and it be 72%, then a few hours later returns to 100%. Is this normal or should I have concerns with my converter showing it’s age? Thanks!
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