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Old 05-08-2011, 04:59 PM   #1
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Question Ultrasport house batteries won't recharge

I have a Damon 2000 Ultrasport, 38'. Starting last year, after plugging into 50 amp or 30 amp, the house batteries would drain. It is my understanding that the inverter should be charging the batteries as they are used. Whenever I plug and let the coach sit the batteries are now draining. I have no charge left. This just started. Had new batteries in chassis and house put in. I had the coach checked and some parts replaced in the electrical system with no luck fixing the problem.

Has anyone seen this and what was done to fix it?
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Old 05-08-2011, 06:14 PM   #2
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A VOM is your friend. You should be monitoring the batteries and voltage of the batteries charging systems.
With a few exceptions inverters change 12V DC to 120VAC but unless it is also a converter it will not also charge the batteries.
Check the voltage with the meter and with the converter off and you should get about 12.6V or 25.2V for a 24V system. with the converter on and charging you should read ~13.4V
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Old 05-08-2011, 07:40 PM   #3
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Quote:
Originally Posted by Shadowcatche View Post
With a few exceptions inverters change 12V DC to 120VAC but unless it is also a converter it will not also charge the batteries.
I think there are quite a few exceptions on the newer rigs. I have an inverter/charger combo...no converter.
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