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10-28-2023, 11:15 PM
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#1
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Established Member
Join Date: Jul 2023
Location: mead
Posts: 36
M.O.C. #33034
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dead batteries
Tried to put out my slides and nothing happened, I hooked up to the shore power and I was able to put out the slides but then I started to get a beeping noise about every 10 seconds it sounded like it was coming from the battery area, Is this a low battery sound or something else?
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Bob & Sandy
2021 3120RL
2003 chevy
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10-29-2023, 05:00 AM
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#2
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,145
M.O.C. #25165
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When my batteries were low before, I did get a beeping noise coming from the LCI control panel on the side where I run the jacks. Maybe that was what was beeping?
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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10-29-2023, 01:17 PM
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#3
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Established Member
Join Date: Jul 2023
Location: mead
Posts: 36
M.O.C. #33034
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Ok I just checked my batteries and they are at 14.42 Does that mean they are being overcharged? Pulled the power and I got a reading of 13.3 went out to my truck and got readings of 12.2 on one and 12.3 on the other, the truck has been out side in 18 deg weather and has not been started in a week
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Bob & Sandy
2021 3120RL
2003 chevy
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10-29-2023, 01:19 PM
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#4
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Established Member
Join Date: Jul 2023
Location: mead
Posts: 36
M.O.C. #33034
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Also the beeping was from the jack control had error just had to reset it
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Bob & Sandy
2021 3120RL
2003 chevy
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10-30-2023, 05:11 AM
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#5
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,145
M.O.C. #25165
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A fully charged battery should read 12.7 volts. If you are getting 14.42, then your charger is in bulk charging mode.
To get an accurate reading on your battery, disconnect it from the charger and let it sit for at least 1/2 hour to stabilize, then take a voltage reading.
Here's a rough guide based on voltage...
12.70v - 100%
12.50v - 90%
12.42v - 80%
12.32v - 70%
12.20v - 60%
12.06v - 50%
11.90v - 40%
11.75v - 30%
11.58v - 20%
11.31v - 10%
10.50v - 0%
You should try to never let your battery get below 50% for best results.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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10-30-2023, 10:14 PM
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#6
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Established Member
Join Date: Jul 2023
Location: mead
Posts: 36
M.O.C. #33034
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replace
OK, I pulled the batteries and 1 was at 12.7 the other one was at 11.3 I charged it overnight and now it is 12.7 This is the 2nd time I know the batteries have been found dead, the batteries were put in in 2020 think it time to replace them?
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Bob & Sandy
2021 3120RL
2003 chevy
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10-31-2023, 05:18 AM
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#7
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,145
M.O.C. #25165
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I'd take the batteries and have them load tested. If one was 11.3 while the other was 12.7, it may have a dead cell or cells. Are they wired in parallel and if so, is the positive and negative across both batteries? They should typically charge and discharge together if properly wired. Also, if you do replace, make sure to replace both. You wouldn't want one new one to be killed by one old one.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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10-31-2023, 02:14 PM
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#8
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,245
M.O.C. #30417
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What he said! One bad battery can kill a good one! Change in pairs.
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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10-31-2023, 03:42 PM
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#9
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Seasoned Camper
Join Date: Dec 2022
Location: Manahawkin
Posts: 69
M.O.C. #32095
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Time to replace both batteries.
Good Luck!
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2023 Keystone Montana High Country 295RL
2022 GMC Sierra Duramax 2500 Denali
S&B 62 gallon diesel fuel tank
Slide toppers
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10-31-2023, 06:27 PM
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#10
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,708
M.O.C. #24086
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Two 12vdc batteries in parallel.
I'm just curious how they are connected.
This is the recommended method.
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10-31-2023, 11:09 PM
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#11
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Established Member
Join Date: Jul 2023
Location: mead
Posts: 36
M.O.C. #33034
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That is how they were connected
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Bob & Sandy
2021 3120RL
2003 chevy
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11-01-2023, 07:28 AM
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#12
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,708
M.O.C. #24086
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As mentioned above, I would charge them, then take them to an auto parts store and get them tested.
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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11-01-2023, 08:24 AM
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#13
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,245
M.O.C. #30417
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__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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11-05-2023, 09:37 PM
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#14
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Established Member
Join Date: Aug 2022
Location: Peoria
Posts: 30
M.O.C. #31477
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We had a similiar problem, could never lower our jacks from just the battery. Always had to plug into power. Had a service tech come out to check out what was happening and he discovered that it wa a fuse. He changed it and now it works just fine. Much easier than hauling the batteries around.
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