Battery upgrade

Discussion in 'Power - Site Power/Batteries/Generators/Solar' started by tiltshift, Jun 6, 2021.

  1. tiltshift

    tiltshift Member

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    Furnace wasn’t stayin on and propane detector beeping LV fault.

    checked the battery and found an old RVCare DC24 dated 2004

    Upgraded with a group 27 100 amp hr deep cycle..

    hoping to get a few days running the furnace dry camping
     

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  2. kennedyma

    kennedyma Active Member Platinum Supporting Member

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    Nice!

    If you want to get an idea of how long things will run check out this calculator we made:
    https://nomaticsupply.com/pages/battery-calculator
     
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  3. neighbormike

    neighbormike Well-Known Member Gold Supporting Member

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    You will certainly appreciate the upgrade! On my last popup I only had room for one battery and one lp tank so I installed a DC31 & 30lb tank - still had room for the bunk to slide out. TT I started with 2 DC24’s and recently upgraded those to 31’s.
     
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  4. tiltshift

    tiltshift Member

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    Ha, that was actually the calculator that I used to figure out. With 100 amp hrs, 4A furnace fan runnin 6 hours at 50 percent duty cycle, I should get 4 nights…assuming I can only get half of the 100 amp hours outta the magic electron box :)

    very useful tool, thanks!

     
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  5. Anthony Hitchings

    Anthony Hitchings Well-Known Member Silver Supporting Member

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    The duty cycle in our Aliner for the heater is about 10% at the most. more likely less than 5%.
     
  6. davido

    davido Well-Known Member

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    Popups (with canvass sides) have higher duty cycles than A-liners with hard sides.

    I've estimated that in weather in the upper 30s to low 40s, the duty cycle is closer to 33%, though. But my thermostat seems pretty crazy; it lets the trailer get pretty cold, and then just about cooks us before shutting off again. So, there are wide swings. But maybe this helps reduce the duty cycle.

    I have two group-24 batteries, and I seem to get about 4-5 nights out of a set of batteries with night time lows in the upper 40s to lower 50s. I used to run it all night, but now that my kids are a little older and my DW has become my D-EX-W, I'm able to turn it off once everyone is in bed. That prolongs my time out between charges.
     
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