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Old 09-12-2015, 04:49 PM   #1
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Battery Alarm Sounds Whenever Systems (other than pure AC) are used

I have a 2010 Open Range Journeyer 337 that seems to be chewing up deep cycle batteries, I have two in parallel. Any system; lights, AC, Furnace... that requires both 110 AC and 12 V DC, seems to cause the alarm to sound. This morning, the battery indicator on my power panel was reading one third, this evening (no power drain on batteries) the panel is registering two thirds capacity. Is this clearly a faulty AC-DC converter issue, or something else.

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Old 09-12-2015, 07:51 PM   #2
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Location: Cincinnati
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Your furnace uses LP and 12 v, not 120 v. I don't know 1/3 or 2/3 power, if it's 1/3 is that 4 volts? Use a volt meter on the battery terminals. A proper 12 v battery should show about 12.7 v when not on charger and having had a chance to absorb the 'surface charge' that builds up when charging. Repeatedly discharging 12 v batteries to below 50% will shorten their life and not allow recharging to full capacity. Some of your issues might be poor connections, I'd start by removing and cleaning all connections, including ground attachment to RV frame.

If you are not on shore power or generator but using 120 v items, you must have an inverter. Inverters are usually about 80% efficient so you won't use too much 120 v electricity before depleting the batteries. Usually an inverter will shut down at a preset voltage. You might need more storage battery capacity if you keep running them down so far.

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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