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Old 06-08-2015, 08:32 AM   #1
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House Batteries replacement

I am in the process of replacing my house batteries. It came with two batteries but my understanding the more batteries the longer used of equipment. I do not dry camp or boom. Could I get away in using one house battery instead of two? For a 2014 Class C Citation from Thor
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Old 06-08-2015, 08:37 AM   #2
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So long as you don't dry camp, one battery will be just fine.

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Old 06-09-2015, 09:57 AM   #3
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Thank you J Birder
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Old 06-09-2015, 10:06 AM   #4
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If you have an inverter, I would turn it off. It probably has a parasitic draw on your house battery. An inverter in a RV does nothing but invert 12 volt DC to 120 volt AC.


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Old 06-09-2015, 10:27 AM   #5
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It's all about cost vs. power. You didn't say what type batteries you currently have so I am assuming they are 2 six volt batteries in series providing 12 volts out as this is a typical configuration.
House batters should be true deep cycle, measured in Amp-Hous, and not starting batteries measured on CCA. so called Marine batteries are not tru deep cycle but a hybrid. Something between starting and deep cycle.
For the money two deep cycle 6 volt batteries provide the best bang for the buck. These are often called Golf Cart batteries. You can get them at Cosco or other battery discounters fairly inexpensively. These will give you around 200+ amp-hours of capacity. The higher the amp-hour rating the more capacity they have.
You of course can use a standard cheap starting battery but it will die a very death and will be replacing it often.
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Old 06-09-2015, 11:34 AM   #6
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I am replacing two 12V Harris battery that came with the rig. I would like to use just one 12V battery instead of two 12V
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Old 06-09-2015, 12:49 PM   #7
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Why would you need to replace the house batteries on a 2014 MH? If they are still functional, I would leave them in there until dead, then replace. You probably have 4 to 5 good years left on them.
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Old 06-09-2015, 12:52 PM   #8
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Why change them?
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Old 06-09-2015, 12:57 PM   #9
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You might want to get them load tested before buying replacements. Now, if you severely discharged them one or more times & didn't recharge immediately or let a parasitic draw them down, they might be ruined.


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Old 06-09-2015, 12:59 PM   #10
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Or let the water level in the cells get low or didn't use distilled water.


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Old 06-09-2015, 01:06 PM   #11
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Quote:
Originally Posted by Selah View Post
It's all about cost vs. power. You didn't say what type batteries you currently have so I am assuming they are 2 six volt batteries in series providing 12 volts out as this is a typical configuration.
House batters should be true deep cycle, measured in Amp-Hours, and not starting batteries measured on CCA. So called Marine batteries are not true deep cycle but a hybrid. Something between starting and deep cycle.
For the money two deep cycle 6 volt batteries provide the best bang for the buck. These are often called Golf Cart batteries. You can get them at Costco or other battery discounters fairly inexpensively. These will give you around 200+ amp-hours of capacity. The higher the amp-hour rating the more capacity they have.
You of course can use a standard cheap starting battery but it will die a very death and will be replacing it often.
Having two six volt batteries wired in series doubles the voltage to 12 V but the amp hours stay the same so you would have about 230 amp hours BUT you should not take them down to less than half charge. That would be adequate for an overnight stay if you were frugal in furnace usage.
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Old 06-09-2015, 01:18 PM   #12
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Battery is no good according to auto zone, has them check the batteries because I couldn't start the generator on my last trip. Them I research the internet on Harris battery and found out these batteries was mislabel (less power) them the label indicated. I call them and the warranty on them is over and they was telling me that it still has the power. These batteries probably was not kept up to maintenance while at the dealer with everyone checking out the RV tuning this and that on etc. I did not check the batteries when we did a walk trough everything was running on shore line. Here is a link Harris Battery – Deep Cycle Battery Labeled Incorrectly (27D170) | RVING ILLUSTRATED So that why I want to put a new battery instead of trying to charge them again. And the water in it was at level.
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Old 06-09-2015, 03:27 PM   #13
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Do you have a slide or slides? If so, always deploy them with shore or generator power, never with battery power only if they're tied to the house battery. If they're tied to the chassis battery then only deploy if engine is running.

Do you have leveling jacks? If so, deploy them with engine running.


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Old 06-09-2015, 10:01 PM   #14
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When we bought our '02 Georgetown in 2010, the single house battery was in bad shape. The compartment was big enough for two batteries (I think size 27). We went to Costco and got a pair of 12V deep-cycle batteries, which, IIRC, were about $60 each. Four years later, when we sold the rig, they were still going strong.

As long as you don't camp without hookups very often. I don't believe that going to the trouble of getting the Golf Cart 6V batteries is worth the hassle.
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