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Thread: Battery Problem
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05-07-2019, 08:03 AM #1
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Battery Problem
Our solar equipped rig's in covered storage, checked the battery yesterday and the Trimetric reads 0%.
It was 100% on April 8th, 86% on April 26th.
That's a normal drop of .78%/day so it should have read 74% yesterday.
If we're not going on a trip, I recharge the batteries at 70-75%.
Here's the Trimetric readings:
Volts 12.4
Amps -4.1
% zero
AH -1.02 (amp hours)
DSC 34.1 (days since charged)
DSE 1.68 (days since equalized)
Pr -52.3 (power, watts)
RPC zero (replaced power percentage)
When I hooked up the battery, lights & slides worked.
Seems to me I left something on that drained the battery, couldn't find anything, plus the % drop in April is normal.
I installed the system two years ago, never seen this happen before.
Thoughts?
Thx,
JohnJohn, Susan & Luke
2015 Reflection 303 RLS #867
Bakersfield, CA
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05-07-2019, 08:12 AM #2
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Do you have a cut off switch to cut ALL the 12 volt power? Or just the one that comes stock in the trailer?
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05-07-2019, 08:23 AM #3
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just the OEM switch, which as I understand it powers just the
propane alarm.John, Susan & Luke
2015 Reflection 303 RLS #867
Bakersfield, CA
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05-07-2019, 08:33 AM #4
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The amperage reading looks like an inverter is powered up.
I have two disconnects in my system. The first one disconnects the batteries completely from the trailer. Everything. The second acts like the OEM's original shutoff switch.
When I have #1 on and #2 off (as if I'd disconnected the batteries using the OEM switch) the amperage draw is .7A (9W). I suspect the 4.1A (~51W) means something besides a normal trailer item is powered up in your trailer.2017 Ford F-350 DRW 6.7L Platinum
2019 315RLTS (purchased 16 Jul 18 from Campers Inn RV in Byron, GA)
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05-07-2019, 08:48 AM #5
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Thanks Howard, I'll check it again when I go back over there later this morning.
although why did the amp draw apparently zoom up while it was in storage and nobody was around?
Almost as if I accidentally turned on the inverter during my visit on April 26th...
As I understand it, I shouldn't kill everything because it would shut off power to the Trimetric system and I would lose the historical data.
I have 3 AGM batteries, does this mean they're kaput or can I charge them back up again?
If they can be recharged, should I do it right away?Last edited by John612; 05-07-2019 at 08:52 AM.
John, Susan & Luke
2015 Reflection 303 RLS #867
Bakersfield, CA
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05-07-2019, 09:09 AM #6
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Not an answer to your battery question, just was reading on this site yesterday.
How Fast Can an AGM Battery be Charged? https://marinehowto.com/how-fast-can...ry-be-charged/- Gene
Kim & Gene
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05-07-2019, 09:25 AM #7
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Thanks Gene
John, Susan & Luke
2015 Reflection 303 RLS #867
Bakersfield, CA
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05-07-2019, 10:06 AM #8
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At the rig, inverter was off.
Turned it on, amps read -2.8.
Turned it back off, amps read -.1
Now I’m really puzzled.John, Susan & Luke
2015 Reflection 303 RLS #867
Bakersfield, CA
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05-07-2019, 11:13 AM #9
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05-07-2019, 11:59 AM #10
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Yes, I’ll post it in a bit.
I’m thinking the meter is bad, put a call into manufacturer.
Measured 12.6v on each battery disconnected.
My battery guy says they’re good, just charge em back up, should be able to read 13.1v in a few hours of sunshine.
He said if voltages were significantly different then batteries would probably be dead.
He’s had many rv’ers with battery problems and doesn’t have much confidence in % readings.John, Susan & Luke
2015 Reflection 303 RLS #867
Bakersfield, CA
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