Trailer batteries end of life, one or both?





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  1. #1
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    Default Trailer batteries end of life, one or both?

    I have 2 105a deep cycle batteries in my trailer with mk4 power panel. Approx. 4 years old. I charge continuously with 220 mains. The panel shows a drop to 10. As I understand it the panel shows the main batterie's voltage but not the aux battery. Does that mean the aux battery maight still be ok, or that both have reached end of life?

  2. #2
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    Default Re: Trailer batteries end of life, one or both?

    Perhaps swop the 2 batteries and then look at numbers
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  4. #3
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    Default Re: Trailer batteries end of life, one or both?

    Are the two batteries connected in parallel? Pse say how you identify the main and aux battery?

    Hilux 3.0 D4D "Goldilocks" - Rigged for overlanding
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  5. #4
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    Default Re: Trailer batteries end of life, one or both?

    I actually have no idea. Was thinking to disconnect each in turn and see which one displays on the panel??

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    Default Re: Trailer batteries end of life, one or both?

    Any owner who has an aux battery should at least have a multimeter (even a cheapy).

    Makes life so much easier to measure quickly and independently.

    https://www.takealot.com/digital-mul...E&gclsrc=aw.ds

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