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Old 07-01-2015, 06:35 AM   #57
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I finally opted to install a Magnum Smart Battery Combiner. Given the fact that I have a solar system that often provides high voltage charging, the Magnum unit with its adjustable controls will protect he chassis batteries from potential damage and will protect the house batteries from running down too far.

Thanks to all for your input on this subject!

Stan & Jacquie
2007 Monaco Knight DFT 40'
2012 Equinox w/Air Force I, Blue Ox Alpha & Base, 600 Watts Solar.
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Old 08-23-2015, 11:38 AM   #58
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my problem is the alternator appears to be working but the charge is not getting to the chassis batteries

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Old 08-23-2015, 04:27 PM   #59
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My MH's charger will charge the chassis batteries ONLY after the house batteries are charged at a rate of 13.3 volts. If less than that, the house batteries will not let the charge go through to the chassis batteries. Bottom line, chassis batteries dead, coach will not start. The question is, why not let the charger charge them both???
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Old 08-23-2015, 07:03 PM   #60
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my problem is driving down the road the chassis batterie4s will lose charge and the mh will just die. i had to jump from the coach batteries just to make it home.
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Old 08-23-2015, 07:09 PM   #61
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Originally Posted by web1racer View Post
my problem is driving down the road the chassis batterie4s will lose charge and the mh will just die. i had to jump from the coach batteries just to make it home.
Web1racer, you might want to start a new thread with your problem, you will get more responses doing so.

While the RV running, take a voltage reading on the chassis battery, should be 13+ volts, if under that, you need to get your alternator tested, any auto zone type places will do this for free
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Old 08-23-2015, 07:35 PM   #62
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It looks like a priority issue. The engine alternator charges the chassis batteries first. The converter charges the house batteries first. If I was losing the chassis batteries I would be disconnecting the combiner and trouble shoot the chassis batteries and engine alternator. Conversely if I was having house problems disconnect the combiner and troubleshoot the house system. That way symptoms are not masked by the other system. If both systems work then start looking at the combiner. If running solar treat it like part of the combiner for trouble shooting.

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