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Old 08-21-2016, 08:06 PM   #1
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Question Coach Batteries problems

Hello everyone,

We purchased a 2006 Adventurer Model 38T last year, nice Motorhome and we just love it, but we are having problems with the coach batteries going dead all too quickly. We have it in storage now so after shutting everything off, including the breakers and the main coach switch, and using a volt meter, there is still a draw of 0.6 amps, when I reconnect the negative wires to the post there is a spark, so obviously there is still a fairly heavy draw of power from something.

Would anyone know what it could be?? or on how to trace it?

Any comments would be appreciated.

Thanks Roger
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Old 08-21-2016, 09:35 PM   #2
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Steps possibly
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Old 08-21-2016, 09:58 PM   #3
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I've have also heard the steps draw a current if they are in the on position.
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Old 08-22-2016, 05:48 AM   #4
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Without a "disconnect switch" I would simply disconnect the batteries.
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Old 08-22-2016, 06:55 AM   #5
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On my 2005 Itasca Meridian I only need to switch off the house battery up front. I must disconnect the classic battery as I can't find the source of the current draw. It ain't just the steps!
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Old 08-22-2016, 09:14 AM   #6
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Question Coach Batteries Problems

Thanks for the replies. I have the motor battery disconnected also so the steps are not working.

Any other suggestions?
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Old 08-22-2016, 09:38 AM   #7
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Hi, well I just use the Aux battery switch. Previously when my house batteries were old, and required constant attention to the water level AND if the water level drops the batteries will quickly die and become useless. Your water level goes below the top of the lead plates for very long and you will kill the battery. I had this issues for years. Dead house batteries!
Then I switched to Lifeline AGM sealed batteries! Wow what a difference! No mess, no fuss, no dead house batteries, no always checking water levels, no acid corrosion in the compartment. Expensive, but worth every penny! Going on 4 years now with not one issue!
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Old 08-22-2016, 09:49 AM   #8
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Quote:
Originally Posted by Courseur View Post
Hello everyone,

We purchased a 2006 Adventurer Model 38T last year, nice Motorhome and we just love it, but we are having problems with the coach batteries going dead all too quickly. We have it in storage now so after shutting everything off, including the breakers and the main coach switch, and using a volt meter, there is still a draw of 0.6 amps, when I reconnect the negative wires to the post there is a spark, so obviously there is still a fairly heavy draw of power from something.
Would anyone know what it could be?? or on how to trace it?
Any comments would be appreciated.
Thanks Roger
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When you say "coach batteries" do you mean the "house batteries" or the "chassis/starting batteries"?
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Old 08-22-2016, 11:44 AM   #9
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I had a similar problem and even replaced the starting battery but the problem continued. Was told the steps draw a current when left on so took to disconnecting all the battery leads for lay up and have had no more problems. Never could trace what the current draw was. It's kind of a pain but I flipped the starting pos clamp over and rearranged the leads going to it and it made it a lot easier to take the lead off. Don't touch the wrench to the chassis or you'll get a nice wake-up call. Duh
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Old 08-22-2016, 12:59 PM   #10
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By coach batteries I mean the house batteries.
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Old 08-22-2016, 04:11 PM   #11
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Originally Posted by cdrprn View Post
I had a similar problem and even replaced the starting battery but the problem continued. Was told the steps draw a current when left on so took to disconnecting all the battery leads for lay up and have had no more problems. Never could trace what the current draw was. It's kind of a pain but I flipped the starting pos clamp over and rearranged the leads going to it and it made it a lot easier to take the lead off. Don't touch the wrench to the chassis or you'll get a nice wake-up call. Duh
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If your steps "draw a current" and drain the batteries "when left on" why not simply simply turn the steps OFF.... (rather than disconnecting the batteries for "lay up")?
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Old 08-23-2016, 06:17 AM   #12
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In reply #5 I forgot to mention that if you have surround sound, which battery position it is in effect which battery bank it draws current from. The surround sound always draws power from whichever battery bank its selected to. I make it a point to select the house batteries so that when I turn the battery switch up front off it off also.

I know someone is going to jump in and tell me if all the audio units are off its not powered, but, if you stand next to a speaker when it's quiet you can hear the faint hiss. I say it's still powered.
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Old 08-23-2016, 11:03 PM   #13
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Thank you very much for all your help but unfortunately I'm no closer to finding the answer. I guess I'll just have to live with it.

Thanks again.
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Old 08-25-2016, 06:24 AM   #14
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Do like I have to do. Turn off the house battery by the switch up front. Go back to the batteries and physically disconnect the chassis batteries. Batteries don't drain.
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