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Old 02-20-2020, 01:27 PM   #1
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Dead batteries

Replaced all batteries in MH. If the RV sits more than a day or two.....need to be charged up to get it to start? Assuming something is draining it but nothing is different that before we bought new batteries?? Any ideas
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Old 02-20-2020, 01:42 PM   #2
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There are a lot of "ghost" items that will drain your battery. To help with coach battery drain its best to turn the battery "disconnect" switch off. Even that will not turn all of the 12 v stuff off. If its the motor battery maybe the radio is on, its hard to tell what would be draining that one.

Maybe someone will come on with a little more info.
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Old 02-20-2020, 01:45 PM   #3
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Did you fully charge all the new batteries?

Bad cell in one of the new batteries?

Check each battery (disconnected from circuit) for voltage and CCA if can get a tester.
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Old 02-20-2020, 04:32 PM   #4
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Quote:
Originally Posted by rjrms View Post
Replaced all batteries in MH. If the RV sits more than a day or two.....need to be charged up to get it to start? Assuming something is draining it but nothing is different that before we bought new batteries?? Any ideas
It would be good to know what coach you have because they are not all the same. Mine came with an echo charge that went out so I installed the Magnum Combiner, a better charging system.

You don't say if you are plugged into power or just setting in your drive way.
Some coaches aren't wired to charge the house batteries so something like this will work.
AMP-L-START Starting Battery Charger/Maintainer - Overview Page
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Old 02-20-2020, 05:30 PM   #5
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If your batteries are needing a jump in a day or two, something is on.

Remove a terminal for now so you don't damage your batteries.

If, with the terminals removed for a few days, you can connect them again, and start it, its not bad batteries.

Now you need to figure out what's staying on, with the key off.
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Old 02-20-2020, 09:09 PM   #6
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Replaced all batteries in MH. If the RV sits more than a day or two.....need to be charged up to get it to start? Assuming something is draining it but nothing is different that before we bought new batteries?? Any ideas
I'ld vote for a bad cell in one of the batteries. Test each cell with a hydrometer to find the bad battery.
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Old 02-22-2020, 10:55 AM   #7
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dead battery

I've heard the step light runs off the chassis batteries? Would this be remedied by turning off the battery switches?
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Old 02-22-2020, 12:48 PM   #8
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Welcome to the forum, you did not say what MH you have, some have remote cargo light switches which can be a drain if on.
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Old 02-22-2020, 02:05 PM   #9
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Without knowing what RV you have or your parking situation we're all just shooting in the dark. And here's my shot: Disconnect the negative battery grounds for both sets of batteries when you store the RV. You'll never have to worry about it again.

Get an Amp-L-Start or Trik-L-Start and install them if you're usually plugged into shore power. During storage w/o shore power, those devices won't stop the phantom loads from discharging the batts so again, disconnect the batt grounds.
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Old 02-22-2020, 02:12 PM   #10
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dead battery

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Welcome to the forum, you did not say what MH you have, some have remote cargo light switches which can be a drain if on.

I've got a 06 expedition. I'm experiencing dead chassis batteries, myself right now. I'm hoping for a dead cell, and nothing more. Can't remember for sure if I switched off my batteries when I put it away end of Dec. I had to take out batteries, charge them, (two years old) plus hit the button that links house batteries as well, to get it to start. House batteries were up full, due to solar, but before charging chassis batteries, it wasn't enough linking them.
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Old 02-22-2020, 02:14 PM   #11
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dead batteries

If you weren't talking to me, my apologies.
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Old 02-22-2020, 11:10 PM   #12
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It would greatly help if people would fill out their signature line on their profile.

Just saying.
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Old 02-23-2020, 09:03 AM   #13
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It would greatly help if people would fill out their signature line on their profile.

Just saying.
There are 4 posters in here that did not enter their RV's particulars into their signature line. And as AlanTerry mentions, it would greatly help if they would.

Help us help you. Thanks.
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Old 02-23-2020, 11:18 AM   #14
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Tim here, I'd be happy to do it, if I knew what it was.
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