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Old 07-12-2018, 02:18 PM   #1
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Default Battery won't stay charged

I have a 98 Roadtrek 200. Replaced Alternator and battery still won't stay charged. The voltage regulator is in the alternator. I had the old alternator and new alternator tested. When tested in the vehicle both say faulty voltage regulator. When tested the alternators out of the vehicle, they best test okay. I'm thinking a short in wiring. Anyone else had this problem that could offer some advice. Thanks
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Old 07-12-2018, 03:26 PM   #2
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I'd start the troubleshooting by testing the isolator.


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Old 07-12-2018, 03:43 PM   #3
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Thank you for the response. I will have my hubby check that out. Much appreicated
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Old 07-12-2018, 03:49 PM   #4
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Not sure if we have a battery bank. Have the main battery and the other battery in back of camper is auxiliary battery
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Old 07-12-2018, 04:48 PM   #5
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Battery bank 1 would be the starting battery where the engine is and battery bank 2 would be the auxiliary / house battery at the back of your Roadtrek.
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Old 07-12-2018, 05:28 PM   #6
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Here are a two helpful documents re: trouble shooting isolators

isolator sp1.pdf


Battery_Isolator_Trouble.pdf

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Old 07-12-2018, 09:11 PM   #7
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Thanks for quick response. Wasn't sure how this multiple battery thing worked. We did find the Isolator battery bank.
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Old 07-19-2018, 08:31 PM   #8
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We are having the same issue with our 2001 Ford Econoline Sportsmobile. DH used a voltmeter to check where the leak was coming from by pulling each fuse one by one. Turns out the leak is the radio/clock. Haven't figured out why, or how to fix it yet, but our temp solution is to pull the fuse when we stop overnight (or altogether if yu don't listen to it while driving)
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Old 07-19-2018, 09:08 PM   #9
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Quote:
Originally Posted by justme View Post
We are having the same issue with our 2001 Ford Econoline Sportsmobile. DH used a voltmeter to check where the leak was coming from by pulling each fuse one by one. Turns out the leak is the radio/clock. Haven't figured out why, or how to fix it yet, but our temp solution is to pull the fuse when we stop overnight (or altogether if yu don't listen to it while driving)
Is the radio/clock the only device supported by this fuse? If so there is something awry with the radio/clock which when turned off shouldn't have a parasitic draw more than a 100 milliamps or so.
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Old 07-19-2018, 09:34 PM   #10
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cruising7388 - thanks - I will definitely pass this info on to him. I believe that it is just the radio. We are pretty clueless when it comes to electrical issues and I would not be adverse to replacing this radio
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