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Old 01-03-2019, 04:03 PM   #1
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Battery dead

We lost AC power today and our light went out. I checked the battery and the voltage was 0.18V. The unit was delivered March 12th 2018 and we used it until May 25th. Then it went back to dealer for some repairs of defects discovered on delivery. We have used it since Nov 22nd and did not discover battery problem until today. With AC power the battery voltage is 13.58V. There is a 30A fuse in a wire next to the battery case, it is good. Any comments? How could a new battery be totally dead already. We don't know if the dealer charged it while it was there.
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Old 01-03-2019, 04:22 PM   #2
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A bad cell can happen to a brand new battery. It's not common but it happens. Ask the dealer about a replacement. You might be prorated but they should be able to accommodate you.
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Old 01-03-2019, 06:24 PM   #3
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Well, it would be the second problem, the A/C died after two months.
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Old 01-03-2019, 08:29 PM   #4
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Just to be sure, how is the water level in the battery?
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Old 01-05-2019, 12:23 PM   #5
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The battery may have been drained completely dead while sitting at the dealer. The radio and CO/LP detector could have done it. You may be lucky and be able to get it back up to normal but otherwise it could have been permanently damaged. Try hooking a battery charger to it and give it a good charge. As mentioned, check the acid level and fill if meeded. If the plates were exposed that can be harmfull. After the battery has been charged let it sit for a day then check the voltage. It would be best to take it and have it tested.
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Old 01-05-2019, 09:02 PM   #6
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Thanks, I will check.
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Old 01-05-2019, 09:08 PM   #7
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Thanks but we have been using the trailer for seven weeks so it would have been charging all that time. When we lost AC power the battery terminals showed 0.18V, when the power came back the terminal voltage was 13.58, so if the battery was not defective it should be charging. But I will check the acid level.
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Old 01-07-2019, 12:12 PM   #8
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What you're reading when the AC power comes back on is the converter voltage, not the battery voltage. The converter is supplying 13.58 to charge the battery. Disconnect the battery cables and then measure the battery voltage.
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Old 01-07-2019, 12:17 PM   #9
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Replace the battery 6v deep cell, two work real nice! Thanks
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Old 01-08-2019, 10:52 AM   #10
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take the battery out take it to any shop and have it load tested.. then you will know.. likely shot..

you can get a new one from dealer maybe prorated or just go buy a new one from a reputable dealer.. try and get one with a 3 year warranty.. our local fleet farm has interstate ones that come with 60 month warranty if you buy from them.. a great deal.. Costco has them too but not the warranty...
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Old 01-08-2019, 11:53 AM   #11
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Quote:
Originally Posted by brettt View Post
Replace the battery 6v deep cell, two work real nice! Thanks
I agree. If you're doing a lot of boondocking the two six volt batteries seem to be the way to go.
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